The research, published in the journal Fish and Fisheries, shows that traditional fisheries targeting large predators such as cod and haddock, have declined over the past hundred years. In their place, catches of shellfish such as prawns, scallops and lobsters have rocketed as they begin to thrive in unnaturally predator-low environments often degraded by the passage of trawls and dredges.
In many places, including the UK, shellfish are now the most valuable marine resource. The research by the Environment Department at York suggests that although a shellfish-dominated ecosystem appears beneficial from an economic perspective, it is highly risky.
Like simplified agricultural systems, these shellfisheries are unstable in the long-term and at great risk of collapse from disease, species invasions and climate change.
Lead author, Leigh Howarth, says: "Prawns are now the most valuable fishery in the UK, with catches currently worth over £110 million a year. But this fishery has come to exist only after we overexploited populations of cod, haddock and other predators. If shellfish now collapsed the social consequences for fishermen would be devastating. There are simply very few remaining species left to target."
The study reports similar findings from all over the world. In the United States and Canada, catches of lobster, scallops and crab have also come to dominate following the collapse of cod. However, disease and climate change again put these species at great risk.
(seafood.vasep.com.vn) The Quang Tri Department of Agriculture and Environment has instructed localities to base their stocking schedules on actual conditions in each farming area, while developing plans, allocating resources, and implementing synchronized measures for disease prevention and disaster risk management in aquaculture production.
(seafood.vasep.com.vn) In the first two months of 2026, Vietnam’s exports of fish cakes and surimi exceeded USD 45 million, up 7% compared to the same period in 2025, indicating a positive outlook for this product segment amid recovering demand in many markets.
(seafood.vasep.com.vn) During the week from April 4th to 10th, 2026, Quang Ngai province intensified its monitoring and law enforcement activities with the determination to eliminate illegal, unreported, and unregulated (IUU) fishing practices.
(seafood.vasep.com.vn) Thanh Hoa’s shrimp sector is undergoing a strong transformation by accelerating the adoption of high technology, helping to improve productivity, increase profits, and meet market demands. The province currently has about 4,100 hectares of shrimp farming, with output continuing to rise despite stable farming area, mainly due to the shift from traditional methods to intensive and super-intensive farming.
(vasep.com.vn) Amid ongoing volatility in global seafood trade, Vietnam’s crab exports have made a fairly positive start to 2026. According to Vietnam Customs statistics, export turnover in the first two months of 2026 reached nearly USD 55 million, up 24% compared to the same period in 2025 and more than 2.2 times higher than in the same period of 2024. This indicates that crab exports are entering 2026 with stronger growth momentum, particularly in Asian markets.
(seafood.vasep.com.vn) Da Nang City has fully implemented all recommendations from the European Commission (EC) regarding the fight against illegal, unreported and unregulated (IUU) fishing, creating an important foundation for the removal of the “yellow card” in the near future.
(seafood.vasep.com.vn) In Hoa Vang district (Da Nang City), red tilapia farming is demonstrating clear economic efficiency, becoming a promising livelihood that helps many households increase their income. A notable example is the model of Mr. Huynh Ngoc Nam, who operates two red tilapia ponds covering more than 4 hectares, generating stable annual income.
(seafood.vasep.com.vn) In Gia Vien district, tilapia farming—particularly the “duong nghiep” strain—is expanding rapidly and gradually becoming an efficient production model for local farmers. Hatcheries in the area are supplying high-quality, uniform, and disease-free fingerlings, meeting the growing demand for commercial farming.
(seafood.vasep.com.vn) On the afternoon of March 19, Vice Chairman of the Ca Mau Provincial People’s Committee, Le Van Su, chaired a meeting to address bottlenecks and propose solutions to expand the super-intensive whiteleg shrimp farming model using low water exchange and high biosecurity standards (RAS-IMTA).
(seafood.vasep.com.vn) On March 10, 2026, the Ho Chi Minh City People’s Committee issued Decision No. 1377/QD-UBND approving the Aquatic Animal Disease Prevention and Control Plan for the 2026–2030 period. The decision takes effect from the date of signing and replaces previous plans for the 2021–2030 period that had been issued prior to the administrative merger in Ba Ria – Vung Tau, Binh Duong, and Ho Chi Minh City.
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