topic: Fish Farming

topic: Fish Farming

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Sumatran culinary heritage at risk as environment changes around Silk Road river
- Research shows that landscape changes across the Musi River Basin in Indonesia’s South Sumatra province risks food security across the river delta as fish stocks diminish and protein availability declines, including in the provincial capital, Palembang.
- Some fish traders and artisans in the city of 1.8 million worry culinary culture in Palembang is becoming endangered as rising sedimentation in the Musi River threatens the freshwater snakehead murrel fish.
- Reporting in March, during the fasting month of Ramadan, showed prices of food staples made from this fish increasing sharply from previous months as demand surged for fast-breaking events.

Mass salmon deaths hit Scottish farms as government investigates
- Hundreds of thousands of Atlantic salmon (Salmo salar) died on fish farms in Scottish waters in the final months of 2024.
- Poisonous jellyfish, disease and parasites were behind the mass mortality events, despite major investments by the salmon industry to combat these threats.
- In January, a parliamentary committee concluded an inquiry into the industry, saying it was “disappointed” by the lack of progress on environmental pollution and animal welfare issues.

Salmon farms under fire on U.S. East Coast after being shuttered on West Coast
- An advocacy group has sued the last company in the U.S. still farming salmon in sea cages, citing alleged violations of the Clean Water Act.
- Cooke Aquaculture runs more than a dozen sites in the northeastern state of Maine. The lawsuit accuses the company of illegally discharging pollutants, exceeding limits on effluents and nutrient buildup, and reporting violations.
- The legal action comes the same month that the state of Washington banned industrial salmon aquaculture over environmental concerns, making Maine the only U.S. state where the practice continues.
- Critics argue that netpen salmon farming not only pollutes the marine environment but also threatens wild salmon populations, while requiring the harvest of too much wild fish and krill for feed.

Thai farmers demand action to restore ecosystems, compensate for invasive fish
- Citizens rallied in Bangkok this week demanding accountability and action from the government and private corporations following an outbreak of invasive fish that has ravaged Thailand’s freshwater ecosystems and aquaculture industry.
- Blackchin tilapia, an omnivorous species native to West Africa, is highly adaptable, breeds rapidly and is capable of outcompeting native wildlife and commercially farmed species, including shrimp.
- Thailand’s largest agricultural conglomerate has come under scrutiny because it obtained a permit to import the species in 2010, shortly before the first detections in the wild in the same province as its research facility.
- The activists urged the government to eradicate the species, compensate affected farmers and identity the parties responsible for the outbreak.

1 in 4 freshwater species worldwide at risk of extinction: Study

Banner image of discus fish by Rhett A. Butler/Mongabay.

The most extensive global assessment of freshwater animals to date has revealed that a quarter of all freshwater animal species on the IUCN Red List are threatened with extinction. The largest number of these threatened species are found in East Africa’s Lake Victoria, South America’s Lake Titicaca, Sri Lanka’s Wet Zone, and India’s Western Ghats […]
Campaigners celebrate as firm making first-ever GMO fish ceases operations
- AquaBounty Technologies, the first company in North America to get regulatory approval to sell a genetically engineered animal for human consumption — an Atlantic salmon spliced with genes from other fish — announced on Dec. 11 that it was closing its last facility, ceasing fish farming activities, and culling remaining stock.
- A coalition of conservation and Indigenous groups that had campaigned against AquaBounty celebrated the announcement, saying the company’s work posed environmental and public health risks.
- AquaBounty’s proponents contend that the salmon was completely safe and more sustainably produced than some farmed alternatives, and that decades-long campaigning against it had contributed to the company’s failure.

‘These stories deserve to be told’: Shining a light on secretive fisheries managers

In 2024, the U.N.’s climate and biodiversity conferences, COP29 and COP16, drew the attention of more than 3,500 media delegates and 1,000 journalists, respectively. Though these massive global negotiations are consequential for international policy on the environment and have human rights implications, there were also international negotiations this year on managing the majority of the […]
Time for a ‘moral reckoning’ of aquaculture’s environmental impacts

Aquaculture is often promoted as a solution to declines in wild fish populations, and has outpaced the amount of wild-caught fish by tens of millions of metric tons each year. But it carries its own myriad environmental impacts, to the detriment of both humans and the ocean, says Carl Safina, an ecologist and author. He […]
Women in Putumayo turn to fish farming and away from the coca industry
- A women-led fish farming initiative in Colombia’s Putumayo department offers an alternative to the coca economy, challenging both environmental damage and traditional gender roles.
- Wedged between the Ecuadorian border and the fringes of the Amazon, Putumayo has long been heavily affected by armed conflict and coca cultivation, resulting in high levels of violence and human rights abuses.
- The initiative empowers women, challenging traditional gender roles in rural Colombia by providing stable, legal income and reducing dependency on the dangerous coca economy.
- Financial constraints, limited government support, lack of infrastructure, as well as persistent threats from armed groups hinder the development of alternatives to coca farming.

Overuse of antibiotics in Bangladesh aquaculture raises health concerns
- A recent study in Bangladesh reveals high rates of antibiotic resistance in pabda fish (Ompok pabda) bred by farmers through aquaculture.
- Consumption of antibiotic-resistant pabda fish may lead to the development of antibiotic resistance in humans as it exposes the food chain to multi-drug resistant (MDR) bacteria.
- Pabda aquaculture in Bangladesh produces around 20,000 metric tons annually, some of which is exported.
- Researchers are advocating educating farmers on the correct usage of antibiotics with the intervention of fisheries experts.

Scottish salmon farms seek growth despite mounting fish deaths and environmental concerns
- Scotland is the world’s third-largest producer of farmed Atlantic salmon (Salmo salar), after Norway and Chile.
- The industry is seeking to significantly increase production in Scotland, driven by growing export demand.
- However, it faces ethical concerns over mounting fish mortality, as well as environmental concerns about pollution, the proliferation of sea lice affecting wild salmon, and opposition from several local communities.
- Industry members acknowledge the challenge of growing salmon amid rising sea temperatures, but say Scottish salmon farms have made progress in managing sea lice and other health challenges.

A Ramsar site in Bangladesh fast loses its fish diversity amid government inaction
- Tanguar Haor, Bangladesh’s second largest Ramsar site and one of the country’s most important habitats of breeding fish, has been losing its fish diversity.
- A recent study found that the number of available fish species is now below 100 while, just two decades ago, the figure was recorded to be 141.
- Experts blame anthropogenic factors, including overfishing and habitat destruction, as the causes of declining diversity.
- However, authorities are ignoring the rising urgency for conservation and are instead celebrating the “increased fish production in the wetland.”

Indonesia fisheries minister eyes aquaculture expansion under Prabowo
- Indonesia’s new president, Prabowo Subianto, has retained incumbent fisheries minister Sakti Wahyu Trenggono to oversee expansion in productivity in captive fisheries over the next five years.
- Sakti has pledged to revive ailing aquaculture ponds, most of which are located on the northern coast of Java, where numerous village fishing economies are struggling amid depleted near-shore fish stocks and coastal development.
- In July, Indonesia’s then-vice president, Ma’ruf Amin, told a fisheries summit that climate change, biodiversity loss and environmental damage had hindered the output of near-shore fisheries in the world’s largest archipelagic country.

Startups replace plastics with mushrooms in the seafood industry
- A handful of startups in the U.S., Europe and Asia are helping the seafood industry fight plastic pollution by creating equipment made from fungi.
- Efforts are currently focused on replacing plastic foam, a polluting component of numerous elements of the seafood supply chain, with mycelium, the root-like structure of fungi.
- A company in Maine makes mycelium-based buoys for the aquaculture industry, for example.
- Elsewhere, projects are seeking to create biodegradable mycelium-based coolers for transporting fish.

More krill fishing and no new protected areas for Antarctic seas after latest talks
- The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) held its annual meeting Oct. 14-25 in Hobart, Australia.
- The international body comprised of 27 members is charged with conserving marine life in Antarctic waters, an area that is changing rapidly due to human-caused climate change.
- In 2009, the CCAMLR pledged to create “a representative network” of marine protected areas in the Southern Ocean, yet negotiations over four proposed MPAs have been at a standstill for years, due to repeated vetoes by the Chinese and Russian delegations.
- Despite a year of interim negotiations, CCAMLR members failed again at the latest meeting to reach agreement on creating any new marine protected areas and rolled back regulation of the burgeoning Antarctic krill fishery.

On Canada’s West Coast, clam gardening builds resilience among Indigenous youth
- The Nuu-chah-nulth Youth Warrior Family, also known as the Warrior Program, fosters leadership skills in boys and young men across several Indigenous Nuu-chah-nulth nations on the west coast of Vancouver Island in British Columbia, Canada.
- This youth-led program involves taking younger community members into ancestral lands for a variety of traditional activities, among them building and reviving clam gardens, an ancient maricultural method.
- Clam gardens consist of terraced rock walls built across small coastal bays that allow tidal sediment to accumulate and transform rocky or steep shores into flat, productive areas for clams.
- Clam garden construction and care, along with other cultural practices, such as hunting, spearfishing and medicinal-plant foraging, serve as rites of passage, helping Warrior Program youth reconnect with their heritage.

A tribe once declared ‘extinct’ helps reintroduce salmon to the Columbia River
- For thousands of years, Kettle Falls was a vital salmon fishing ground for the Sinixt, but early 20th-century dam construction blocked salmon migration.
- Wrongfully declared extinct in Canada in 1956, the Sinixt fought for recognition and were officially acknowledged as Aboriginal Peoples of Canada in 2021.
- In 2023, the U.S. government signed a $200 million agreement with a coalition of tribes, including the Sinixt, to fund an Indigenous-led salmon reintroduction program into the Columbia River system above dams in Washington.
- Sinixt leaders say this project is an important effort to help right a historical wrong in the legacy that led to their “extinction” status, while many hope to one day join salmon efforts on their traditional territory in Canada.

In choice of mangroves or livelihood, Vietnam shrimp farmers choose the latter
- Conservationists and policymakers have long sought ways to alleviate pressure on mangroves from shrimp farming, one of the leading drivers of tropical coastal deforestation.
- A new study shows that despite government-led initiatives seeking to strike a balance between mangrove preservation and shrimp cultivation, farmers in Vietnam’s Mekong Delta are struggling to protect coastal forests with which they compete for farm space.
- The researchers found that despite participating in sustainable shrimp-farming schemes, more than half of interviewed farmers have flouted regulations that require them to maintain 60% mangrove cover.
- Experts say the findings indicate the current mangrove protection model isn’t working in Cà Mau and call on authorities to find another approach that diversifies the incentives and options for farmers to protect local mangroves.

Shrimp farms threaten Mexico’s mangroves and the jaguars that inhabit them
- Western Mexico’s rapidly expanding shrimp farms, many of which are illegal, are contributing to the deforestation of the Pacific coast’s mangroves, an important habitat for jaguars.
- Satellite images show the total surface area of shrimp ponds along Mexico’s Gulf of California increased by more than 1,100% between 1993 and 2021, to more than 114,000 hectares (282,000 acres).
- Researchers emphasize the importance of small private reserves, like La Papalota in the state of Nayarit, for jaguar conservation: These areas serve as critical sanctuaries and corridors between larger conservation sites, such as Marismas Nacionales Biosphere Reserve, home to a fifth of Mexico’s mangroves.
- Conservationists say urgent action is required to safeguard the remaining mangroves and jaguars, yet efforts continue to be hindered by inadequate enforcement of protection laws and the alleged involvement of cartels reportedly using shrimp farms for money laundering.

As aquaculture hits historic highs, let’s ensure sustainability is prioritized (commentary)
- The latest State of World Fisheries and Aquaculture Report indicates that for the first time ever, nations are farming more seafood than they’re catching.
- According to the FAO, world fisheries and aquaculture production has surged to an all-time high of 223.2 million tons, marking a 4.4% increase from 2020.
- “Even as world fisheries and aquaculture production hit a new high, the FAO report also documents pressing challenges that need immediate attention,” a new op-ed from the Marine Stewardship Council states.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

For the first time ever, we’re farming more seafood than we’re catching: FAO
- For the first time in history, we now farm more seafood than we catch from the wild.
- At the same time, overfishing of wild fish stocks continues to increase, and the number of sustainably fished stocks declines.
- Those are among the key findings of the 2024 installment of the flagship global fisheries and aquaculture report from the U.N.’s Food and Agriculture Organization (FAO). The biennial report provides data, analysis and projections that inform decision-making internationally.
- Sustainably growing aquaculture and better managing fisheries are central to the FAO’s “Blue Transformation road map,” a strategy for meeting the U.N.’s Sustainable Development Goal 14, which seeks to improve the social, economic and environmental sustainability of aquatic food to feed more people more equitably. However, progress is “either moving much too slowly or has regressed,” the report says.

Caught in the net: Unchecked shrimp farming transforms India’s Sundarbans
- The Sundarbans region of India has experienced a significant shift from traditional agriculture to shrimp aquaculture due to erratic weather and increasing global demand for shrimp.
- This surge in shrimp farming has disrupted local communities, displacing them from their traditional livelihoods.
- The rapid expansion of shrimp farming in the Sundarbans is often conducted without proper scientific knowledge or technical training. Scientists warn that this will have long-term consequences.

Restoring Indigenous aquaculture heals both ecosystems and communities in Hawai‘i
- The loko i’a system of native fishponds in Hawai‘i has for generations provided sustenance to Indigenous communities, supported fish populations in surrounding waters, and generally improved water quality.
- These benefits, long understood by native Hawaiians, have now been supported by scientists in a new study that looked at the restoration of one such fishpond.
- Unlike commercial fish farms, loko i‘a thrive without feed input and need little management once established — aspects that highlight the holistic thinking and values-based management behind them.
- The study authors say the finding is another step toward communicating Indigenous knowledge to support governmental decision-making, part of wider efforts across the archipelago to weave Indigenous and Western ways of knowing to heal both ecosystems and communities.

Venezuela’s shrimp farms push for sustainability against hardship and oil spills
- Venezuela’s aquaculture industry used to go unnoticed in a national economy revolving around the oil industry, but has gained prominence since 2019 despite revenue cuts and the economic crisis.
- Oil spills from disintegrating crude infrastructure compelled shrimp farms to move from an open system that took water from Lake Maracaibo and the Caribbean Sea, to a closed system that’s not only more profitable but also provides environmental benefits for communities and yields healthier shrimp.
- In 2023, farmed shrimp was Venezuela’s sixth-largest export by value; while the top export markets are in Europe, China has become the industry’s fastest-growing destination.
- While the industry has found ways to thrive amid adversity, it says it needs more help from the government, including on supplies of fuel and electricity, on research, and on nurturing a more secure and stable regulatory climate.

Huge new no-fishing zones give Antarctic marine predators and their prey a break
- The government of the South Georgia and South Sandwich Islands (SGSSI), which operates as a British overseas territory, recently announced that it had established new no-fishing zones over 166,000 km² (64,100 mi²) of its existing marine protected area, and prohibited krill fishing in an additional 17,000 km² (6,600 mi²) of the MPA.
- These new no-fishing zones were established to protect krill-dependent marine wildlife, including baleen whales and penguins, while also considering the fisheries operating in the area, which target krill and other species.
- While conservationists initially pushed for further protections, they ultimately accepted the decision, with one calling it a “positive and good outcome.”
- However, Argentina, which claims the South Georgia and South Sandwich Islands as part of its Tierra del Fuego province, has expressed its dissatisfaction with the SGSSI government’s decision.

Norwegian salmon farms gobble up fish that could feed millions in Africa: Report
- Norwegian salmon farms are taking huge amounts of wild fish from West Africa, mining the food security of the region, according to a report from the U.K.-based NGO Feedback.
- In 2020, the industry produced salmon feed ingredients using up to 144,000 metric tons of small pelagic fish caught along the coasts of West Africa, where they could have fed between 2.5 million and 4 million people, according to the report.
- The analysis comes as the industry faces a wave of public opposition after revelations of high mortality rates and the sale of fish deemed unfit for human consumption, along with accusations of antitrust violations by the European Commission.

New environmental rules for Chile’s protected areas rile the salmon industry
- A law that came into force in Chile last year has upset the salmon industry for imposing new requirements for salmon farms located in protected areas.
- The industry says the new rules threaten jobs and cause uncertainty in an industry that contributes 2% of Chile’s GDP.
- The salmon industry currently has 71 applications for concessions within protected areas, most of which wouldn’t meet the conditions laid out in the new rules.
- Conservation experts say the salmon industry’s reaction to this attempt at regulation is “unfortunate,” especially given its history of environmental harm.

Indonesia invites Turkish investors to develop tuna farms in Papua
- Indonesia has invited Turkish investors to participate in offshore tuna farming in the Papua region’s Biak Numfor district, aiming to make it a hub for tuna exports.
- The Indonesian fisheries ministry said Turkish fisheries operators can bring innovation to enhance productivity and ensure sustainability of the tuna fishery.
- Indonesia, a significant contributor to global tuna production, faces sustainability challenges due to excessive harvesting of wild tuna.
- The outreach to Türkiye is the latest in efforts to get foreign investors to help develop Indonesia’s various fisheries, including a similar offer earlier in January for Vietnam to invest in lobster farms.

Last of the reef netters: An Indigenous, sustainable salmon fishery
- Reef net fishing is an ancient, sustainable salmon-harvesting technique created and perfected by the Lummi and other Coast Salish Indigenous people over a millennium.
- Rather than chasing the fish, this technique uses ropes to create an artificial reef that channels fish toward a net stretched between two anchored boats. Fishers observe the water and pull in the net at the right moment, intercepting salmon as they migrate from the Pacific Ocean to the Fraser River near present-day Washington state and British Columbia.
- Colonialism, government policies, habitat destruction, and declining salmon populations have separated tribes from this tradition. Today, only 12 reef net permits exist, with just one belonging to the Lummi Nation.
- Many tribal members hope to revive reef net fishing to restore their cultural identity and a sustainable salmon harvest but face difficulties balancing economic realities with preserving what the Lummi consider a sacred heritage.

Fish out of water: North American drought bakes salmon
- An unprecedented drought across much of British Columbia, Canada, and Washington and Oregon, U.S., during the summer and fall months of June through October could have dire impacts on Pacific salmon populations, biologists warn.
- Low water levels in streams and rivers combined with higher water temperatures can kill juvenile salmon and make it difficult for adults to swim upriver to their spawning grounds.
- Experts say relieving other pressures on Pacific salmon and restoring habitat are the best ways to build their resiliency to drought and other impacts of climate change.

Amid record melting, countries fail again to protect Antarctic waters
- The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), the intergovernmental body charged with protecting marine life and managing fisheries in the Southern Ocean, met from Oct. 16-27 in Hobart, Australia, with 26 member countries and the European Union participating.
- For the seventh year in a row, the CCAMLR declined to establish new marine protected areas (MPAs) around Antarctica, despite having committed to creating “a representative network of MPAs” in 2009.
- Scientists, conservationists and some governments have been pushing for greater protections, concerned that the melting ice in Antarctica has reached alarming levels, jeopardizing some key populations of penguins, krill, whales, seals and other marine animals.
- The stalemate came even as a new threat to wildlife emerged in the region: the discovery last week that a virulent form of avian flu had reached Antarctic bird colonies.

Can aquaculture solve the Mediterranean’s overfishing problem?
- In the Mediterranean, 73% of commercial fish stocks are fished beyond biologically sustainable limits.
- Part of the strategy to reduce overfishing promoted by the General Fisheries Commission for the Mediterranean, a regional fisheries management organization, is to promote the expansion of aquaculture, which is growing rapidly.
- However, most fish farms in the region produce carnivorous species, causing concern among experts and NGOs about the risk of worsening the burden on wild marine stocks to produce enough feed.

In Sumatra’s Jambi, community forest managers fish to protect peatlands
- A community in Indonesia’s Jambi province has resorted to fish farming to raise money for its efforts to prevent wildfires in the community.
- In 2015, around 80% of the province’s peat forest was damaged during the Southeast Asia wildfire crisis.
- Jambi-based nonprofit KKI Warsi cites the number of peatland canals as the greatest barrier to replenishing the wetland.

Scientists: Fishing boats compete with whales and penguins for Antarctic krill
- Scientists and campaigners recently documented huge krill fishing vessels plowing through pods of whales feeding in Antarctic waters, a permitted practice they say deprives the whales of food.
- As Antarctic waters warm due to climate change, krill numbers are declining, stressing wildlife that rely on the small crustaceans at the bottom of the food chain.
- The intergovernmental body in charge of regulating the krill fishery, the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), has taken specific steps to protect penguins and seals but not whales.
- At the same time, CCAMLR has stalled on the establishment of new marine protected areas and the adoption of new conservation measures. A special meeting to advance protected areas concluded June 23 with no progress.

West African fishers strike for fair wages and ‘respect’ on EU-owned vessels
- African fishers, mostly from Senegal and Ivory Coast who work on dozens of EU vessels that operate in West Africa and the Indian Ocean, took part in a strike that lasted from June 5-8, alleging wage violations.
- Vessels owned by EU companies are allowed to fish in foreign countries’ waters through agreements between the EU and the host nations. However, a third of such vessels operating in West Africa use flags of other countries and evade labor rights provisions agreed to under these pacts.
- Fishers who participated in the strike told Mongabay they were fighting for more than fair wages, saying that African sailors were not treated with respect on European boats despite doing some of the most arduous jobs.
- Seafarers’ unions called off the strike after the Senegalese government initiated negotiations with vessel owners and unions. Talks are expected to conclude in five months.

Bangladesh ramps up freshwater fish conservation in bid for food security
- Bangladesh is reviving 39 native freshwater fish species through hatchery breeding, in an effort to secure stocks of commercially important fish.
- A quarter of the freshwater fish found in Bangladesh are threatened with extinction, according to a 2015 assessment, largely as a result of habitat loss, overfishing and pollution.
- In response to the decline, the Bangladesh government is breeding several species in captivity and distributing the fry for free to fish farmers.
- Bangladesh produces 4.6 million metric tons of fish a year, and is the No. 3 producer of freshwater fish globally.

At sea as on land? Activists oppose industrial farming in U.S. waters
- Aquaculture produces more than half of the world’s seafood, mostly in inland and coastal waters. Industrial marine and coastal finfish aquaculture, such as salmon farming, accounts for just a fraction of that production, and comes with a host of negative environmental impacts.
- A set of agribusiness giants and other corporate interests are pushing to expand industrial finfish aquaculture into U.S. federal waters — the open seas — where proponents argue that it will help feed a growing global demand for seafood and have less environmental impact. They want Congress to pass legislation establishing a federal aquaculture system.
- Though Congress has not yet acted, in 2020, Donald Trump issued an executive order that gave the industry a boost, and government agencies have begun the permitting process for several projects in which finfish would be raised in open-ocean pens miles out to sea.
- Environmental advocates, including the campaign group Don’t Cage Our Oceans, are fighting against the proposed congressional bills, calling for a reversal of the executive order and a stop to the proposed projects in U.S. federal waters.

Indonesia to expand ‘smart fisheries’ program aimed at empowering communities
- Indonesia will expand its smart fisheries village program, aiming to empower fishing communities to boost their productivity, achieve sustainability standards, and improve their overall economic welfare.
- Twenty-two fishing communities are enrolled in the initial batch of the program, which will focus primarily on fisheries, but also look to improve community welfare through tourism, public health interventions, financial literacy, and other initiatives.
- The participating communities are involved in catching or farming a wide range of seafood and other products, from octopus and tilapia to shrimp and organic salt.
- The fisheries sector employs about 12 million Indonesians, with most of the fleet today, about 650,000 vessels, operated by small-scale and traditional fishers.

Indonesia looks into tuna farming to boost aquaculture, reduce overfishing
- Indonesia is developing tuna farming in the country’s bays in an effort to boost its aquaculture sector and ease the pressure on its world-leading marine tuna fishery.
- The fisheries ministry said it was consulting with international fisheries experts about implementing tuna farming.
- Indonesia’s archipelagic waters are key fishing grounds for several many tuna species, as well as spawning grounds for the fish.
- Indonesia’s tuna fisheries is an important source of livelihood for coastal communities and a key source of food for consumers around the world.

Conservationists aim to save critically endangered European eels on Italy’s Po River
- European eels (Anguilla anguilla) are critically endangered, their population having plummeted by 97% since 1980.
- Illegal fishing, dams and other barriers to their migration, droughts, pollution and habitat changes are putting the eels’ survival at risk.
- These eels reproduce once in their lifetime, only in the Sargasso Sea, where they die. Their unique lifecycle and migratory pattern further complicates conservation efforts.
- In Italy’s Po River Basin, researchers are working to conserve eels through interventions including the construction of fish passages to defragment rivers, reproduction in captivity and teaching fishers to recognize and release the likeliest breeders.

Spamming streams with hatchery salmon can disrupt ecosystems, study finds
- In a new study, researchers found that releasing hatchery-bred native masu salmon into freshwater streams in Hokkaido, Japan, destabilized the local ecosystems.
- Overall, the study found that the total number of fish, and number of different species, both declined in the long term due to greater competition for resources like food and preferred feeding spots.
- Masu salmon populations also did not increase in the long term, the research found.
- With hatchery releases increasing in many areas — and for many species — the findings add to the ongoing debate over their wider effects on wild fish populations.

A Philippine town and its leaders show how mangrove restoration can succeed
- In the early 1990s, the coastal town of Prieto Diaz, in the Philippines’ Bicol region, was selected as a pilot area for a community-based resource management program created by the Department of Environment and Natural Resources.
- Today, an award-winning community organization helps maintain a mangrove ecosystem that has grown to be the region’s largest and supports the livelihoods of both its members and the broader community.
- Residents credit the restored mangrove ecosystem with protecting the village from storm surges, and point to committed local leaders as vital to the ongoing success of mangrove restoration and protection.

Saving forests to protect coastal ecosystems: Japan sets historic example
- For hundreds of years, the island nation of Japan has seen various examples of efforts to conserve its coastal ecosystems, vital to its fisheries.
- An 1897 law created protection forests to conserve a variety of ecosystem services. “Fish forests,” one type of protection forest, conserve watershed woodlands and offer benefits to coastal fisheries, including shade, soil erosion reduction, and the provision of nutrients.
- Beginning in the late 1980s, fishers across Japan started planting trees in coastal watersheds that feed into their fishing grounds, helping launch the nation’s environmental movement. Although the fishers felt from experience that healthy forests contribute to healthy seas, science for many years offered little evidence.
- New research using environmental DNA metabarcoding analysis confirms that greater forest cover in Japan’s watersheds contributes to a greater number of vulnerable coastal fish species. Lessons learned via Japan’s protection and fish forests could benefit nations the world over as the environmental crisis deepens.

Fish kills leave Kenya’s Lake Victoria farmers at a loss, seeking answers
- According to a Kenyan government report, fish farmers in sections of Lake Victoria lost more than 900 million Kenyan shillings ($7.2 million) in massive fish kills in November 2022.
- Scientists attribute the fish kills to reduced levels of dissolved oxygen likely due to a natural phenomenon called upwelling, which can be exacerbated by climate change and extreme weather.
- Local farmers who lost their fish, however, attribute the die-offs to pollution from Lake Victoria industries, which agencies have accused of discharging untreated effluent into the lake in recent years.

Is it safe to eat? Bangladesh fish exposed to hormones, antibiotics and toxic waste
- Bangladesh has recently achieved remarkable success in freshwater fish production, with more than 1.25 million metric tons of freshwater fish produced in 2020.
- The use of antibiotics in fish culture and hormones in artificial fish breeding bring into question the safety of Bangladesh’s food supply, as exposure to high levels of these substances can harm human and environmental health.
- Research shows that 88% of fish farmers do not have proper knowledge of antibiotics use, and 81% are unaware of effective chemical dosages in fish farming.
- In addition, toxic industrial wastes containing heavy metals released into the aquatic environment may enter the food chain through biomagnification and may cause various health problems in humans.

In Chile’s Patagonia, another salmon plant angers water defenders
- The Dumestre salmon plant near the Chilean city of Puerto Natales is receiving backlash from conservationists who say the facility will dump waste into Patagonian waters.
- The plant can process over 70,000 tons of fish per year, requiring the management of 23,000 cubic meters of industrial liquid waste and the movement of 350 ships in the Señoret canal.
- Local activists say the community wasn’t properly consulted about their needs before the plant was opened.

As livelihoods clash with development, Vietnam’s Cần Giờ mangroves are at risk
- Cần Giờ, a coastal district of Ho Chi Minh City, is home to a 75,740-hectare (187,158-acre) mangrove forest, planted and maintained as part of post-war reforestation efforts.
- The district’s residents largely depend on aquaculture, shellfish gathering and small-scale ecotourism for their livelihoods.
- The government and developers hope to market the area as an ecotourism city based on its natural beauty and post-war success story, but major projects could disrupt Cần Giờ’s precarious balance between ecosystems and livelihoods.
- All names of sources in Cần Giờ have been changed so people could speak freely without fearing repercussions from authorities.

Sustainable fish farming & agroecology buoy Kenyan communities
- In Kenya, small-scale onshore aquaculture combined with sustainable agroecology practices is boosting food security and incomes for smallholder farmers.
- Though most of these farms are quite small, a large amount of protein can be raised in fish ponds filled with rainwater.
- Fed with combinations of food waste and crop residues from agroforestry and organic farming, fish like tilapia can be raised sustainably and profitably.
- Nine counties have invested in supporting such aquaculture projects, with an estimated 300 fish farmers in the Gatunga region of central Kenya alone.

Indigenous Kawésqar take on salmon farms in Chile’s southernmost fjords
- Sixty-seven salmon farms exist within Kawésqar National Reserve in southern Chile, an area that formed part of the Kawésqar Indigenous people’s ancestral lands, and another 66 concessions are under consideration there.
- The salmon industry claims the farms only occupy 0.06% of the reserve, which covers a marine area of 2.6 million hectares (6.4 million acres), and have a legitimate presence in the area.
- But Kawésqar communities accuse the farms of taking up the fjords where their sacred areas and fishing grounds are, of violating their rights on their own territory, and of compromising the ecosystem of the entire reserve through severe pollution.
- Kawésqar communities, with the support of various NGOs, are pursuing numerous legal avenues aimed at excluding salmon farms from the reserve.

As sea lice feast away on dwindling salmon, First Nations decide the fate of salmon farms
- Increased sea lice infestations, scientists say are caused by salmon farms, threaten the already-vulnerable wild Pacific salmon populations in western Canada, worrying conservationists and First Nations.
- Three First Nations in the region are now deciding on the future of open net pen Atlantic salmon farms dotting the channels and waterways in and around their territories. They hope their decisions will pave the way to protect wild salmon, a culturally important species.
- So far, ten farms have been closed and the future of seven farms are to be decided this year, in 2023.
- The impact of the closure of the farms on local sea lice and wild salmon populations is still unclear, say scientists, and more time to monitor the data is needed.

Top mangrove news of 2022
- Mangroves are unique forests adapted to live along the coasts in mostly tropical and subtropical areas of the world.
- Mangroves are in danger as they are cleared to make room for farms, mines, and other human developments.
- Mangroves provide a bevy of important ecosystem services such as flood and erosion control and greenhouse gas storage, and they provide habitat for many species.
- Below are some of the most notable mangrove news items of 2022.

Negotiations to conserve Antarctic Ocean end in stalemate on many issues
- The 41st annual meeting of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), the intergovernmental body charged with conserving marine life in the Southern Ocean and managing fisheries there, ended Nov. 4 with little progress made on several key issues.
- In 2009 CCAMLR committed to creating a network of marine protected areas to preserve Antarctic ecosystems. It established one that year and another in 2016, but since then China and Russia have repeatedly blocked the creation of additional protected areas, as well as other conservation-related measures.
- The commission also failed to reach the consensus required to enact new regulations for the krill and toothfish fisheries, or to protect a vast nesting area for icefish discovered earlier this year.
- CCAMLR members did agree to designate eight new vulnerable marine ecosystems, areas home to slow-growing organisms such as corals, sponges, brittle stars and feather stars that are now permanently protected from bottom fishing.

Fish-feed industry turns to krill, with unknown effects on the Antarctic ecosystem
- The Antarctic krill fishing industry has been growing in the past two decades.
- The global growth of fish farming is driving the demand for Antarctic krill as an alternative to wild fish in fish feeds, amid the depletion of many wild fish stocks.
- Independent scientists say the krill fishery could have a detrimental effect on Antarctica’s predator populations, which are also suffering from the impacts of global warming.
- The krill industry is expanding its fleet and planning to significantly increase catches in the next few years.

Fished out at sea and smoked out on land, Senegal fishers take on a fishmeal factory
- A fishers’ collective in Cayar, east of Dakar, says a fishmeal factory there is jeopardizing livelihoods and endangering public health.
- Analysis in September of water from a lake revealed pollution by biodegradable organic matter causing deoxygenation that is harming aquatic life.
- Some residents of Mbawane, in Cayar municipality, say the fishmeal company’s operations are a good thing, making use of surplus fish which would otherwise rot on the beach.

Nepal’s mugger crocs face ‘senseless’ turf war over dwindling fish resources
- The decline in fish stocks in Nepal’s Koshi River threatens the mugger crocodile, a species already under pressure from historical poaching and habitat loss.
- A new study shows the crocodiles are increasingly encroaching into community-run fish farms in the buffer zone of the Koshi Tappu Wildlife Reserve in search of food, raising the risk of conflict with humans.
- At the same time, they face competition from gharials, a predominantly pescatarian crocodile that’s being introduced back into the Koshi as part of a government-run conservation program.
- “Making a vulnerable species compete with its critically endangered cousin doesn’t make sense,” says one of the authors of the study.

Overlooked and at risk, seagrass is habitat of choice for many small-scale fishers
- Seagrass meadows, rather than coral reefs, are the fishing grounds of choice for many fishing households in four countries in the Indo-Pacific region, a new study shows.
- Fishers in Cambodia, Tanzania, Indonesia and Sri Lanka identified seagrass meadows as being more easily accessible than coral reefs, often without the need for a boat, and less likely to damage equipment such as nets.
- However, seagrasses around the world are disappearing at rates that rival those of coral reefs and tropical rainforests, losing as much as 7% of their area each year.
- The study makes the case for better-informed management of these marine habitats, to ensure their sustainability for the marine life and people who depend on them.

Study: Climate impacts to disproportionately hurt tropical fishers, farmers
- The majority of 72 coastal communities studied in five countries in the Indo-Pacific region may face significant losses of agricultural and fisheries products — two key food sources — simultaneously under the worst-case climate change projections, a new study shows.
- These potential losses may be coupled with other drivers of change, such as overfishing or soil erosion, which have already caused declining productivity, the study adds.
- But if carbon emissions can be effectively managed to a minimum, the study’s authors say, fewer communities would experience losses in both the agriculture and fisheries sectors, indicating the importance of climate mitigation measures.
- The current global average temperature is 1.1°C (2°F) above pre-industrial times, and climate experts have warned that it could climb to about 3°C (5.4°F) higher by the end of this century if nothing changes.

Record-breaking seafood production must undergo a ‘blue transformation’: FAO
- The U.N.’s Food and Agriculture Organization released its latest “State of World Fisheries and Aquaculture” (SOFIA) report in late June. The flagship report, released biennially since 1995, provides data, analysis and projections that inform decision-making internationally.
- Fisheries and aquaculture production rose around 3% since 2018, to an all-time high of 214 million metric tons in 2020, with a first-sale value of around $406 billion, the report found. Growth was driven by a 6% rise in aquaculture production, while wild fish capture dropped by almost 4.5%.
- The number of sustainably fished marine fish stocks continued a long-term decline; less than 65% of stocks are now being fished within biologically sustainable levels, down from 90% in the 1970s.
- The new report outlines a “blue transformation” that aims to make both the aquaculture and wild fisheries sectors more sustainable and productive so they can help feed a human population projected to reach 10.9 billion by the end of this century.

Fish-farming practices come under scrutiny amid surge in aquaculture
- A recent investigative report claims to reveal for the first time the poor conditions, including mistreatment of fish, in some Indonesian fish farms.
- While activists and industry figures are at odds over the magnitude of the problem, both agree that aquaculture throughout Asia needs to be better managed while supporting small-scale farmers to address the issue of fish welfare.
- Production of farmed fish grew by 527% worldwide from 1990-2018; production of wild-caught fish during the same period rose by just 14%.

Indigenous, ingenious and sustainable aquaculture from the distant past to today
- On today's episode of the Mongabay Newscast we look at Indigenous peoples’ long relationship with, and stewardship of, marine environments through two stories of aquaculture practice and research.
- Nicola MacDonald joins us to discuss Kōhanga Kūtai, a project in New Zealand that aims to replace the plastic ropes used by mussel farmers with more sustainable alternatives. MacDonald discusses the project's blending of traditional Maori knowledge with Western science.
- We also speak with Dana Lepofsky, a professor in the archaeology department at Simon Fraser University in British Columbia, Canada, who shares her research upon clam gardens along the Pacific coast of North America. Some of these clam gardens have been found to be at least 3,500 years old, and were such a reliable and sustainable source of food that there’s a movement afoot to rebuild them today.

Troubled waters: A massive salmon farm off the coast of Maine is stalled
- Norwegian-backed American Aquafarms was slated to build the largest salmon farm in North America along the coast of the U.S. state of Maine, using a closed-pen system said to minimize waste.
- But opponents say the closed-pen technology is untested at such a large scale, and warn that environmental impacts will devastate the pristine waters.
- The proposed salmon farm would have been right at the shorelines of Acadia National Park, threatening the region’s untarnished views and noise pollution.
- Currently, the project is indefinitely delayed as state officials terminated the lease application on April 19th. However, with Maine leasing the ocean for only $100 an acre ($250 a hectare) per year, opponents worry that future investors will see the coast as a lucrative target.

Ten unexpected edibles from our oceans
- The world’s oceans are a source of food for billions of people worldwide, but our appetites have had a deleterious effect on marine ecosystems for hundreds of years now.
- Creative minds are increasingly finding new and more sustainable ways to feed the world via some unexpected areas of the oceans.
- Here are 10 seafoods you may never have heard of but may see soon on a menu or superstore aisle.

Indonesia on track with peatland restoration, but bogged down with mangroves
- Programs to restore areas of degraded tropical peatland and mangroves had mixed fortunes in their first year, with the former racing to 25% of its four-year target, and the latter achieving less than 6%.
- Officials and experts say a key obstacle to the mangrove restoration program is the opposition of the communities clearing the mangrove forests to establish shrimp and fish farms.
- Lack of funding was also an issue, with the mangrove budget slashed and redirected toward Indonesia’s COVID-19 pandemic response.
- Experts say the government needs to find a middle ground with shrimp and fish farmers, including by helping them boost their productivity so they can operate smaller farms and dedicate a greater area to rehabilitation.

Indonesia aims for sustainable fish farming with ‘aquaculture villages’
- Indonesia plans to have a network of 136 villages dedicated to aquaculture by the end of this year.
- The initiative is part of the government’s efforts to boost exports of its world-renowned aquaculture commodities, namely shrimp, lobster, crab and seaweed.
- Experts have welcomed the plan, but say it must be supported by sound environmental planning, particularly avoiding the clearing of mangrove forests and ensuring proper waste management.
- Indonesia is one of the top exporters of farmed seafood, but fish farming in the country has long come at the expense of carbon-rich mangrove forests and other important coastal ecosystems.

Study shows how sustainable livelihood programs for Indonesian fishers can succeed
- Projects offering alternative livelihoods to fishers in Indonesia tend to succeed when they work closely with local NGOs and link participants to markets where they can sell what they produce.
- That’s the finding of a new study that looks at what makes successful sustainable livelihoods interventions tick, including partnership with local people to develop their skills and leverage traditional resource-management knowledge.
- Projects that failed tended not to understand the social context in which they were situated, including gender dynamics, resource and land-tenure systems, and the desires of local fishers.
- The study authors say the findings highlight best practices for alternative-livelihoods projects and are important given that communities with negative past experiences of such projects are less likely to engage with them again in the future.

Kenya port and ship-breaking projects threaten livelihoods and environment
- Plans to build an industrial fishing port and a ship-breaking yard along the Wasini Channel off Kenya’s coast threaten the livelihoods of local communities who depend on fishing, seaweed farming, and ecotourism, residents say.
- Underwater drilling carried out as part of surveys for the proposed port last November damaged coral reefs, while drilling for the ship-breaking yard destroyed seaweed crops.
- Community members say they fear even more devastating impacts once the projects, which also include a smelting plant, get underway in earnest.

Coastal Indonesian village adapts to life amid rising tidal floodwaters
- Cars once drove along the road in front of residents’ homes in coastal Timbulsloko village on the northern coast of Indonesia’s Java Island. Now, only canoes can pass; when the tide recedes, the water is knee-deep.
- Timbulsloko experiences severe tidal flooding caused by land subsidence, abrasion, nearby major construction, and climate change.
- Residents are starting to respond: A network of interlocking boardwalks now connects the submerged hamlets to dry land, and the village has designated a protected coastal area and prohibited the clearing of mangroves.
- The goal is to prevent further coastal damage and ensure the safety of residents’ settlements. The community is also beginning to discuss sustainable aquaculture.

Declining fish biodiversity in Peruvian Amazon affecting human nutrition
- Declining fish diversity in the Peruvian Amazon could affect nutrition for many of the region’s 800,000 people, according to a new study.
- In Loreto region, fishers have been catching fewer large migratory fish species, which are being replaced by smaller fish. Although protein levels are roughly the same, smaller fish contain more omega-3 fatty acids but less iron and zinc, overall—an issue in a region where people already have high rates of anemia and malnutrition.
- Inland communities are already transitioning toward eating more farmed fish and chicken, but these foods may not be an adequate replacement for the range of nutrients these communities get from a diverse diet of wild fish.
- Although this study focused on regional fish, other wild foods such as plants, insects and bushmeat are an important source of nutrition across the globe. Therefore, policies and practices that preserve biodiversity are not only important for conservation but also a means towards greater food security and public health.

Chile’s marine protected areas aren’t safe from its salmon farms
- Mongabay has mapped out the salmon-farming concessions off Chile’s coast and how they overlap with its patchwork of marine protected areas.
- In Chile’s four southernmost regions, five protected areas have salmon-farming concessions within them, with one having more than 300. This threatens the unique ecosystems of Patagonia.
- The 416 concessions that lie inside marine protected areas belong to 32 companies, the top three of which control more than a third of the concessions.
- In 2012, the Comau Fjord witnessed a massive coral die-off that researchers linked to a combination of natural volcanic activity and water oxygen depletion caused by salmon farming.

Outrage as Cambodian court convicts activists for inciting ‘social chaos’
- On May 5, the Phnom Penh Municipal Court convicted and sentenced five activists from the environmental group Mother Nature Cambodia: Long Kunthea, Phuon Keoraksmey, Thun Ratha, Chea Kunthin and Alejandro Gonzalez-Davidson.
- The activists have been convicted of intending to cause “social chaos” by planning a protest of the government-sanctioned destruction of Phnom Penh’s lakes, which are being filled in for development. The planned one-person march never actually took place.
- Kunthea and Keoraksmey were sentenced to 18 months in prison and Ratha received a 20-month sentence while Alejandro Gonzalez-Davidson and Chea Kunthin were sentenced in absentia; each activist was also fined $1,000.
- Observers are crying foul at the convictions and incarceration of the activists and say that the health and lives of Kunthea, Keoraksmey and Ratha – who have been incarcerated since their arrest in September – are at risk due to Cambodia’s crowded prisons and a recent surge in COVID-19 infection rates.

On an island scarred by tin mining, mangrove planting preserves shrimp tradition
- Mining, aquaculture, plantations and other commercial activities have taken a toll on mangroves in Indonesia, home to the world’s largest extent of these important ecosystems.
- On the Bangka-Belitung islands off Sumatra, residents of one village are doing their part to maintain the mangroves through replanting.
- For the Batu Betumpang villagers, the mangroves are the source of the shrimp they use to make their belacan shrimp paste, a key source of livelihood here.
- The villagers say there’s a growing awareness of the importance of mangroves, without which “our income will definitely decline because shrimp will run out.”

A fatal stabbing sends a Gambian fishing village into turmoil over fishmeal
- Three Chinese-owned fishmeal factories have opened in the Gambia since 2016, sparking tensions over allegations of competition with local fishers, overfishing, illegal fishing, and pollution.
- In the town of Sanyang, unresolved disputes with the Nessim Trading fishmeal factory reached a flashpoint on March 15, triggered by the stabbing death of a Sanyang resident, allegedly by a Senegalese worker at the factory.
- Hundreds of people took to the streets in protest, some of them torching the local police station and the fishmeal factory, and destroying boats and equipment belonging to Senegalese fishers.
- The violence drove more than 250 Senegalese residents to flee to the nearby town of Batakonko.

An Amazonian arapaima washed up in a Florida river. It didn’t swim there
- In February, Florida officials identified the body of an arapaima (Arapaima gigas) that had washed ashore from the Caloosahatchee River.
- An expert said the arapaima, a fish species endemic to the Amazon lowlands, had likely come from the pet trade.
- Live arapaimas are mainly brought into the U.S. for aquaculture, although a small number are also imported for the pet trade, another expert said.
- While arapaimas are not currently considered to be an invasive species, there are concerns they could become problematic in the future if enough end up in Florida’s waterways.

When Chinook salmon is off the menu, other prey will do for endangered orcas
- A new study has found that endangered southern resident killer whales mainly consume endangered Chinook salmon, but will broaden their diet when this species isn’t available.
- The researchers obtained data through prey and fecal waste collected from resident killer whales over a 13-year period.
- Efforts to reinstate Chinook salmon populations through hatchery efforts can play an important role in supporting resident killer whale populations, although these programs need to be carefully managed to ensure that stocks are diverse, the study suggests.

Manila’s new white sand coast is a threat to marine life, groups say
- The Philippines’ Department of Environment and Natural Resources has come under fire from green groups and government officials after dumping dolomite sand, typically used in construction, on the shores of Manila Bay as part of a beautification project.
- Critics say the 389 million peso ($8 million) project has overlooked public consultations and is missing environmental assessments and certificates, which means its true impact on Manila Bay’s marine life remains unclear.
- A fisherfolk group says the project is a land reclamation bid posing as rehabilitation, joining several other land reclamation projects along Manila Bay that have already been flagged for social and environmental impacts.
- Lawyers say the move violates numerous environmental laws and circumvents a Supreme Court ruling that mandates government agencies to rehabilitate, preserve, restore and maintain the waters of the bay.

Why the health of the Amazon River matters to us all: An interview with Michael Goulding
- Like the rainforest which takes its name, the Amazon is the largest and most biodiverse river on the planet. The river and its tributaries are a critical thoroughfare for an area the size of the continental United States and function as a key source of food and livelihoods for millions of people. Yet despite its vastness and importance, the mighty Amazon is looking increasingly vulnerable due to human activities.
- Few people understand more about the Amazon’s ecology and the wider role it plays across the South American continent than Michael Goulding, an aquatic ecologist at the Wildlife Conservation Society (WCS) who has worked in the region since the 1970s studying issues ranging from the impact of hydroelectric dams to the epic migration of goliath catfishes. Goulding has written and co-authored some of the most definitive books and papers on the river, its resident species, and its ecological function.
- In recognition of his lifetime of advancing conservation efforts in the Amazon, the Field Museum today honored Goulding with the Parker/Gentry Award. The Award — named after ornithologist Theodore A. Parker III and botanist Alwyn Gentry who were killed in a plane crash during an aerial survey of an Ecuadorian cloud forest in 1993 — is given each year to “an outstanding individual, team or organization in the field of conservation biology whose efforts have had a significant impact on preserving the world’s natural heritage and whose actions and approach can serve as a model to others.”
- In a September 2020 interview ahead of the prize ceremony, Goulding spoke with Mongabay about his research and the current state of the Amazon.

Gray areas and weak policies mar lucrative Asian trade in live reef fish
- High demand for wild-caught reef fish from Southeast Asian countries like Indonesia, the Philippines and Malaysia to stock upscale restaurants in East Asia could be driving overfishing and depletion of fish stocks, export trends indicate.
- To ease the strain on wild fish populations, countries started adopting fish-farming practices in which they raise wild-caught grouper species in pens — a practice that is far from sustainable, a marine expert says.
- Government attempts to regulate the trade by imposing size limits and closed fishing seasons have largely fallen short, experts say.
- The COVID-19 pandemic and the civil unrest in Hong Kong, the prime market for the live reef food fish trade, have driven demand down, providing a window to aid the recovery of species like the leopard coral trout.

Move over, fishmeal: Insects and bacteria emerge as alternative animal feeds
- Fishmeal and fish oil are ingredients in pig and poultry feed, but the largest demand comes from aquaculture.
- Researchers and NGOs have questioned the sustainability of the fishmeal and fish oil industry, which deplete stocks of staple food fish for humans and marine predators alike, among its other impacts.
- Animal feed manufacturers around the world are now looking for alternatives to fishmeal and fish oil.
- Among the most promising alternatives are insects and bacteria, and production is beginning to take off.

Reviving an ancient way of aquaculture at Hawaii’s Heʻeia fishpond
- A 2017-2020 restoration project was plagued by rain, king tides, and storms, including Hurricane Lane, but researchers believe the ponds themselves “can support good growth rates and good survival.”
- The ponds are a model of sustainability: often built at the mouths of streams, they support fish that feed on algae and seaweed in the silty environment.
- Unlike contemporary aquaculture systems, they require no input of feed and are largely self-sustaining, needing minimal management and maintenance once established.

Catching fish to feed fish: Report details ‘unsustainable’ fishmeal and oil industry
- Every year almost one-fifth of the world’s wild-caught fish are dried, pressed and ground into oil and meal, the majority of which is then fed to farmed fish and crustaceans that people will eat.
- A report released in October by the Netherlands-based Changing Markets Foundation followed fishmeal and fish oil supply chains “from fishery to fork.”
- It connected a number of farmed-fish products sold in European supermarkets — often bearing sustainability certifications — to fishing practices the authors deemed “highly unsustainable” in India, Vietnam and the Gambia.
- Supermarkets selling the products include big names such as Sainsbury’s, ALDI, Tesco, Iceland, Marks & Spencer, Waitrose, REWE and Mercadona.

Scientists emphasize disease control in booming aquaculture sector
- The World Organisation for Animal Health held a conference in Santiago, Chile, focused on aquatic animals
- Compared with land animals, little is known about diseases of aquatic animals.
- Yet experts are looking to aquaculture to support human food security in the coming years.

Global fisheries deprive local communities of key nutrients, study finds
- New study shows that fish in tropical regions have higher concentrations of calcium, iron and zinc – critical for human health – than fish in colder waters.
- Fish already being caught off the shores of many nutritionally-vulnerable countries could easily meet needs for vital micronutrients for people living within 100 kilometres of the coast
- Fish – including small species traditionally landed, processed, and eaten locally – is instead being processed into fishmeal for export.

A pearl oyster farm in Bali aims to be a sustainable source of the jewel
- A pearl oyster farm on the northern coast of the Indonesian island of Bali is working to establish a sustainable source for the creatures that produce South Sea pearls, prized for their use in jewelry.
- But the industry’s fast growth has taken a toll on wild oyster populations, and there’s also been a decline in the quality of pearls.
- In response, Indonesia has launched a pearl oyster breeding initiative.
- Indonesia is the world’s largest producer of South Sea pearls, accounting for 43 percent of global supply.

Indonesian governor latest official busted for bribes in environmental case
- Three local officials, including a governor, have been arrested and charged for allegedly taking bribes in a land reclamation project.
- The businessman behind the project in Sumatra’s Riau Islands, who has also been arrested, planned to build a resort and tourism site on reclaimed land in a bay designated as protected.
- Observers say that projects involving land reclamation activities are prone to corruption.

Amid aquaculture boom, report guides investors toward sustainability
- More than half of all seafood now comes from farms, and that percentage is projected to rise.
- However, environmental problems currently bedevil the aquaculture industry, and a consensus on the most sustainable practices has yet to emerge.
- A new report released May 8 aims to guide the private sector, NGOs and policymakers toward better aquaculture strategies.
- In place of business-as-usual practices, the report advocates for three alternatives: a land-based aquaculture strategy called recirculating aquaculture systems; offshore fish farms; and seaweed and shellfish farming.

Octopus farming unsustainable, unethical, and unnecessary, scientists warn
- With efforts underway around the globe to develop commercial octopus farming operations, scientists from Australia, Spain, and the U.S. have penned an article, published in the journal Issues in Science and Technology this month, warning of the severe impacts octopus aquaculture would have on animal welfare and the environment.
- Some 550 different aquatic animal species are currently raised in captivity in about 190 countries, accounting for as much as half of the seafood market in many industrialized countries. Spain is leading the charge to farm species like the common octopus, Octopus vulgaris, employing a variety of experimental aquaculture practices while the Spanish Institute of Oceanography carries out and publishes major research on octopus farming.
- Even if a sustainable diet for captive octopus could be found, farming the cephalopods would still be unethical, researchers argue.

Indonesian fish farmers get early-warning system for lake pollution
- In the wake of the latest mass fish death in Indonesia’s Lake Toba, in northern Sumatra, the government has published a predictive calendar that gives fish farmers early warning of dire water conditions.
- The tool, available online and in printed form, ranks conditions on a progressive scale running from “safe” to “alert” to “dangerous.”
- In addition to the calendar, the government has also recommended other solutions, including the growing of water hyacinths to absorb pollutants in the lake, and reforestation efforts in the area.

Another mass fish kill hits Indonesia’s largest lake
- Indonesia’s Lake Toba experienced another mass fish death this week.
- The incident cost local farmers hundreds of thousands of dollars, according to local government estimates.
- The same thing happened in 2016, and not just in Lake Toba. Seventeen of Indonesia’s lakes are in “critical” condition, according to the government.

One-third of global fisheries operating at biologically unsustainable levels
- About 3.2 billion people around the world currently rely on fish for nearly 20 percent of their animal protein. That means that humans eat more than 150 million metric tons of fish every year — and as the global population increases by a couple billion over the next few decades, that number will surely rise.
- The fishing industry is eager to capitalize on this growth and boost profits, of course, but overfishing is already threatening the global supply of fish and there are plenty of reasons to be skeptical that this growth can and will be achieved sustainably.
- According to the Food and Agriculture Organization (FAO) of the United Nations’ latest report on the state of the world’s fisheries and aquaculture, however, that doesn’t mean we’re approaching “peak fish” — though it will require that fisheries management be strengthened and loss and waste reduced, while problems like climate change, illegal fishing, and pollution must also be dealt with.

Pushing Vietnam’s shrimp industry toward sustainability
- Shrimp farming is one of the biggest industries in Vietnam, and the government is pushing to expand it, having announced plans last year to boost exports from $3 billion in 2016 to $10 billion by 2025.
- But there are significant environmental problems associated with current farming methods, which contribute to deforestation, erosion, land subsidence and rising salinity levels that are threatening the stability of the entire Mekong region.
- The Vietnamese government and a range of international development partners are working to improve the way the country farms shrimp, with an emphasis on small-scale operators.
- However, the reality is that most farmers are reluctant to change.

In Bali fish die-offs, researchers spot a human hand
- Mass fish die-offs are not uncommon in the volcanic lakes that dot Indonesia, including Bali’s Lake Batur, which sits in the crater of an active volcano.
- While sulfur releases, steep temperature gradients and other natural phenomena are responsible for some of the bigger die-offs, researchers have identified the chemicals from excess fish feed as the main culprit for the more frequent die-offs caused by oxygen depletion.
- Similar die-offs in other lakes around Indonesia have also been traced back to household and industrial waste, as well as agricultural runoff and fish farms. Researchers have warned that more than a dozen lakes could die out as soon as 2025 as a result of this chemical assault.

Code for cod and tech for tuna at the 2018 Fishackathon
- The 4th annual Fishackathon begins this weekend (February 11-12), with events taking place in 40 cities in over 30 countries.
- Fishackathon brings together computer programmers, designers and fisheries experts to develop tech-based solutions to unsustainable and illegal fishing and aquaculture practices.
- This year’s teams will develop their solutions to help fisheries keep their supply chains clean and better enforce catch quotas.
- Visit http://fishackathon.hackernest.com/hook/ to learn how to participate at an event near you.

The Philippines commits to science-anchored fishery policies
- The Philippines ranks 10th in the world in terms of its annual catch, and Filipinos consume 32.7 kilograms (72.1 pounds) of fish each year.
- At the same time, 70 percent of the Philippines’ fish populations are overfished.
- The country is now set to work with the Environmental Defense Fund to bring data analysis and science into fisheries decisions by 2022.

Eat less meat, save species and ecosystems, says WWF UK
- Crops for livestock feed damage ecosystems and threaten wildlife, says WWF UK.
- The conservation NGO estimates that just the UK’s livestock industry has caused the extinction of 33 species worldwide.
- However, if people lower their protein intake to recommended amounts, farmers would need 13 percent less land to produce feed for livestock and farmed fish, saving an area 1.5 times the size of the EU.

‘SALT’ alliance aims to tackle illegal fishing on a global scale
- The Seafood Alliance for Legality and Traceability (SALT) alliance announced today at the Our Ocean conference in Malta aims to bring together representatives from seafood companies and seafood-producing and -consuming countries to decrease illegality in the fishing sector.
- Scientists reported that between 11 million and 26 million metric tons (12.1 million and 28.7 million tons) of the worldwide catch is illegal or unreported, costing as much as $23.5 billion a year.
- A year-long process headed by the NGO FishWise that will seek input from a variety of stakeholders begins this month.

Coal undermines Indonesia’s food production: report
- Analyzing government spatial planning maps, researchers for the Waterkeeper Alliance and the Mining Advocacy Network found that 19 percent of Indonesia’s rice-growing land falls within exploration or mining concessions for coal.
- The study calculated that coal mining already costs the country 1.7 million tons of potential rice production, and another 6 million tons of current production are under threat.
- Loss of agricultural productivity is due to land-use change and contamination of water used for irrigation.

Photos: Where once were mangroves, Javan villages struggle to beat back the sea
- Mangunharjo, Bedono, Sawah Luhur — these are just some of the communities where clear-cutting mangrove forests has caused environmental disaster.
- Mangroves are removed to make way for shrimp and fish farms. But without the forests’ protection, coastal communities become dangerously vulnerable to erosion and flooding.
- In some places, residents have planted new mangroves, and managed to reclaim their home from the sea. But not everywhere.

How ‘jobless men managing the sea’ restored a mangrove forest in Java
- In the 1980s and early 90s, fish farming thrived in Brebes, on the north coast of Indonesia’s main central island of Java.
- The industry’s steady growth saw local residents chop down mangrove stands to make way for aquaculture ponds. But the development brought unintended consequences.
- In response, a group of local residents embarked on an ambitious tree-planting campaign.

Fish for all? The fish-free fishmeal challenge
- The aquaculture industry is growing faster than the human population, at about eight percent each year, according to the Food and Agriculture Organization of the United Nations.
- About 20 percent of the world’s fish goes to aquaculture, depleting wild-caught forage fish such as anchovies and krill to provide essential oils and protein for the development and growth of these cultivated foods.
- The first team to sell 100,000 metric tons of fish-free feed or, if that threshold isn’t reached, that sells the most feed by the end of the contest, on September 15, 2017, will be named the winner of the F3 challenge.

First Toba, now Maninjau: another mass fish death hits an Indonesian lake
- Three thousand tons of farmed fish are thought to have perished in Lake Maninjau, the largest lake in Indonesia’s West Sumatra province.
- The die-off follows a similar incident that occurred in Lake Toba, North Sumatra, in May.
- As in Toba, scientists say there are too many fish farms in Lake Maninjau, exacerbating the natural factors that may have killed the fish.

Why did millions of fish turn up dead in Indonesia’s giant Lake Toba?
- In May, millions of fish died suddenly in the Haranggaol Bay of Lake Toba, Indonesia’s largest lake. Scientists chalked it up to a sudden depletion of oxygen in the water, the result of a buildup of pollutants in the lake, unfavorable weather conditions and unsustainable practices by local aquafarmers.
- The local economy was badly shaken by the incident. Most residents of Haranggaol village rely on the fish farms as their only dependable source of income. Many villagers have had to go into debt to keep their businesses from collapsing.
- Haranggaol residents have since tried to modify their practices to prevent another die-off, but without the resources and know-how of the lake’s corporate aquafarmers, they have had a difficult time.
- Meanwhile, the government has big plans for Lake Toba as a tourist destination along the lines of a “Monaco of Asia” — one that might not include the unsightly fish farms.

Fish-farm escapees are weakening Norwegian wild salmon genetics
- Norwegian scientists conducted a genetic analysis of 21,562 wild-caught juvenile and adult Atlantic salmon from 147 rivers — a geographical sampling representing three-fourths of Norway’s salmon population.
- The researchers found genes from farmed salmon in every wild population they tested, and “significant” genetic mixing in nearly half the rivers they sampled.
- “The extensive genetic introgression documented here poses a serious challenge to the management of farmed and wild Atlantic salmon in Norway and, in all likelihood, in other regions where farmed-salmon escape events occur with regularity,” the authors write in the paper.

Fish farms need not be outlawed in Indonesia’s Lake Toba: minister
- The archipelagic country’s chief security minister, Luhut Pandjaitan, said the floating cages could stay as long as they followed environmental regulations.
- The military and police had been deployed as part of an effort by the state to turn Lake Toba into a prominent tourism destination.
- Vice president Jusuf Kalla is scheduled to visit the lake at the end of this week.

Military sent to clear fish farms in Indonesia’s Lake Toba
- The giant lake has struggled with pollution as fish farming and other activities have spread in the region.
- President Joko Widodo has announced plans to clean up Lake Toba and turn it into a prominent tourist destination.
- Now, farmers in Simalungun, a district in the lake region, are told they have until Monday to get rid of their floating cages.
- The anxious farmers want the government to either extend the deadline or compensate them for their losses.

U.S. plan to develop offshore aquaculture stirs dissent
- In January, the National Oceanic and Atmospheric Administration (NOAA) published a final rule allowing offshore aquaculture in federal waters of the Gulf of Mexico.
- The plan includes several measures the agency says will help protect the Gulf environment. For instance, aquaculture sites will be located away from environmentally sensitive areas and waters used for commercial fishing. And companies may only grow fish native to the Gulf and must limit the amount of fish they raise.
- So far no company has applied for a Gulf aquaculture permit yet, but NOAA officials say it’s early and companies may start to apply soon.

New ‘Blue Economy Challenge’ wants your solutions to transform the aquaculture industry
- The Blue Economy Challenge is seeking entries that can help develop “aquaculture technologies and systems that grow economies, improve the lives of disadvantaged people in the developing economies of Indian Ocean region, and achieve positive environmental and social impacts.”
- The Challenge is open to both experts and non-experts.
- Online applications will be open until 30 June 2016, and the winners will be announced sometime between September to October, 2016. Winners can receive grants of up to AU$750,000 (~US$550,000) for any single idea.

Aquaculture comes to Lake Victoria, but will it help wild fish?
- Lake Victoria’s commercial fish stocks have plummeted due to overfishing, invasive species, pollution, and changing climatic conditions, among other factors.
- Now fishermen, researchers, and government officials alike are embracing cage aquaculture as a way to boost profits and fish supplies, as well as give the lake’s free-swimming fish a reprieve.
- However, cage fish farming has caused problems elsewhere in the world, in part due to the use of chemicals and the release of waste products, such as dead fish, uneaten feed, and feces.

13 ‘keystone’ corporations hold sway over sustainability of global fisheries

a small number of corporations resemble tiger sharks in the fishing industry. These corporations could potentially have a seismic effect on the entire fishing industry and hold the power to conserve or collapse fisheries worldwide.
Could inland aquaculture help save the oceans and feed the world?

Mark Kwok, owner of Aquaculture Technology Asia, at his facility in Hong Kong. Kwok’s grouper farm uses special skimmers, bacteria, and UV technology that recycles fouled water and returns it back into the tanks making it likely the most sustainable grouper farm in the world. Photo credit: Dominic Bracco II Mark Kwok has always loved […]
Russia and China blamed for blocking Antarctic marine reserve

An Antarctic krill. Photo by: Uwe Kils/Creative Commons 3.0. Another year, another failed attempt to protect a significant chunk of the Ross Sea, which sits off the coast of Antarctica. According to observers, efforts to create the world’s biggest marine protected area to date were shot down by Russia and China during a meeting in […]
Of Prawns and Men on the Bali Strait

This article first appeared in The Seashore Issue of the culinary magazine Lucky Peach. The piece was funded under the Mongabay Special Reporting Initiative program. Why is shrimp so cheap? (Answer: it’s not.) Wednesday’s special ebi nigiri at Sushi Ichiban; chạo sôm (grilled prawns on sugarcane skewers) as a prelude to pho; frozen blocks of […]
Scientists discover new eagle ray imperiled by Japanese pest program (photos)

Scientists have described a new species of eagle ray in the northwest Pacific Ocean, which they have named “narutobiei” (Aetobatus narutobiei) after its local name in Japan. While the new species has long been known by scientists, it was clumped together with the longheaded eagle ray (Aetobatus flagellum) for over two hundred years. Splitting the […]
Frankenfish or scientific marvel?: giant GM salmon await U.S. approval

It is hard to think of a more unlikely setting for genetic experimentation or for raising salmon: a rundown shed at a secretive location in the Panamanian rainforest miles inland and 1,500m above sea level. But the facility, which is owned by an American company AquaBounty Technologies, stands on the verge of delivering the first […]

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