IN BRIEF - Shrimp and Oysters in the Same Tank – Benefits of Multitrophic Aquaculture
UNITED STATES
Friday, August 02, 2024
Scientists are developing technologies that would make it possible to grow two valuable commodity items even in an ordinary basement.
A scientist from the College of Life Sciences and Agriculture (COLSA) at the University of New Hampshire (UNH) is studying the benefits of integrated multi-trophic aquaculture (IMTA).
IMTA is a system in which two or more organisms are grown together. This process could make shrimp farming more sustainable and support the growth of the industry in the United States.
University of New Hampshire graduate student Elizabeth Martin tests water samples during a shrimp farming study at the University of New Hampshire Coastal Marine Laboratory in 2023. Photo: University of New Hampshire.
Elizabeth Martin, a graduate student in the marine biology program at COLSA, is studying IMTA systems that pair farmed shrimp with filter-feeding species such as oysters to determine whether the pairing will reduce the amount of ammonia and phosphorus that remains in the water during the shrimp farming process.
"Most of the shrimp we consume comes from overseas, and oysters are also one of the most valuable imported seafood products, so developing a local industry will help reduce dependence on these overseas markets," says Martin.
Although shrimp produce ammonia naturally, there are other sources of ammonia, including shrimp feed, which often contains high levels of nitrogen, natural breakdown of feed in the water, dead organisms, feces, and other materials that complicate shrimp aquaculture production. However, in the natural environment of shrimp, there are filter feeders, such as clams, that remove excess nutrients from the water.
Clean Hardangerfjord has removed 80 tonnes of plastic since 2022
Norway’s seafood sector joins Clean Hardangerfjord on September 17, mobilising thousands of volunteers along 180 km of fjord. The campaign has removed 80 tonnes of plastic in four years, while nationwide cleanups cleared 164,253 kg of marine litter in 2025.
Two Argentine lawyers, José Lucas Magioncalda and Juan Martín Fazio, have filed a criminal complaint with the Economic Penal Court against seven Galician fishing companies that operate in the archipelago's waters under Falklands licenses. This smuggling complaint is driven by the renewed sovereignty push of Argentine President Javier Milei, who announced tougher penalties for companies exploiting natural resources from the British-held islands.
The Argentine government is working on reforming Law 26.659 to introduce sanctions for fishing in the Falklands—territory under UK administration—with the bill set to be presented to the Chamber of Deputies in the coming days.
Author: C. Valdez / La Voz de Galicia | Read the full article here
The European aquaculture sector is calling for greater clarity regarding the country of production, while Brussels faces pressure to extend mandatory labeling requirements to processed goods, canned products, and the foodservice sector.
Caviar from non-EU countries has become a key example cited by the European aquaculture industry in its call for Brussels to ensure greater transparency regarding product origins. The Federation of European Aquaculture Producers (FEAP) warns that processing or repackaging within the European Union can make it difficult for consumers to immediately identify where the food was actually produced—an issue that extends beyond caviar to the entire market for processed fishery and aquaculture products.
The highly anticipated delivery of premium mackerel from Norway coincides with Norway Seafood Festival in Tokyo. This year, Norwegian herring also made an appearance for the first time.
September 2026, marked the arrival in Japan of the ‘Saba Nouveau’ mackerel, flown in fresh from Norway to celebrate the first catch of the season.
Now in its sixth year, the arrival has become a highly anticipated autumn tradition and tells a lesser-known story of how a seasonal fish from Norway’s cold waters has travelled to the other side of the world and earned a distinctive place within Japanese food culture.
Australia's first offshore Atlantic salmon trial could be expanded to 55,000 fish in a single pen after its initial crop grew faster than expected in the exposed waters of Bass Strait.
The Blue Economy Cooperative Research Centre has applied for federal approval for a second salmon stocking at its research site 12.5 kilometres off Burnie, Tasmania, increasing numbers from the 15,000 fish used during the first year to a near-commercial stocking density of 55,000.
The proposed new stocking would begin in November and run until 2028
Source: SalmonBusiness | Read the full article here
The cod farmer Ode is introducing its fish across more than 200 stores in Norway this week as part of a new commercial drive.
The move is intended to establish the Ode brand firmly in the minds of the consumer and means that shoppers can buy fresh cod all the year round.
Ode is now not only Norway’s leading cod farmer, but now the world leader in this fast growing branch of aquaculture.It also marks the beginning of a new commercial phase for farmed cod in Norway and includes the introduction of Ode as a brand targeted direct to the consumer.
With this launch, Ode says it is bringing its ultra-fresh supply chain it built for export customers into the Norwegian domestic market
Author: Vince McDonagh / Fish Farmer | Read the full article here
New transparency standard will open fisheries data to public scrutiny
Fiji became the first Pacific Island nation to commit to the FiTI Standard. Minister Alitia Bainivalu signed an MoU with FiTI to improve access to verified data on vessels, permits, catches and revenues, strengthening fisheries management and the fight against IUU fishing.
Peltola and Sullivan pledge tougher action to protect salmon
At a Kodiak fisheries debate, Mary Peltola targeted factory trawlers, while Sen. Dan Sullivan highlighted his Bycatch Reduction Act, due for a committee vote. Both backed changes to federal fisheries management amid concern over declining Western Alaska salmon runs.
Minister Ribanataake Tiwau visits Rarotonga to examine regulatory, scientific and environmental frameworks for ocean resources.
Kiribati Fisheries Minister Ribanataake Tiwau led a delegation to the Cook Islands to study its seabed minerals governance. Talks covered regulation, institutions, scientific research and environmental protection, while exploring future knowledge sharing, capacity-building and Pacific cooperation on ocean-resource management
U.S. demand and rapid growth in Southeast Asia boost Japan’s processed fish-paste trade
Japan exported 6,186 tonnes of processed fish-paste products in January–July 2026, up 9% year-on-year, according to Japan’s Ministry of Finance data reported by Minato Shimbun. The U.S., the largest market, increased purchases by about 10%, while exports to Thailand quadrupled and shipments to Vietnam rose 2.2-fold. Sales also increased to Taiwan, Singapore and Norway. The figures cover processed products such as kamaboko, not frozen surimi blocks used as raw material.
Norway Pelagic Fisheries Report, Week 37 Norway
Slower Mackerel Fishing in the Norwegian Sea, Fine North Sea Herring Caught in EEZ, and Large NVG Herring on the Trøndelag Coast
Weekly Report on Norwegian Pelagic Catch Volumes, Economic Zone...
UNITED STATES
NORWAY
FALKLAND ISLANDS
Two Argentine lawyers, José Lucas Magioncalda and Juan Martín Fazio, have filed a criminal complaint with the Economic Penal Court against seven Galician fishing companies that operate in the archipelago's waters under Falklands licenses. This smuggling complaint is driven by the renewed sovereignty push of Argentine President Javier Milei, who announced tougher penalties for companies exploiting natural resources from the British-held islands.
EUROPEAN UNION.png)
The European aquaculture sector is calling for greater clarity regarding the country of production, while Brussels faces pressure to extend mandatory labeling requirements to processed goods, canned products, and the foodservice sector.
JAPAN
September 2026, marked the arrival in Japan of the ‘Saba Nouveau’ mackerel, flown in fresh from Norway to celebrate the first catch of the season.
AUSTRALIA
Australia's first offshore Atlantic salmon trial could be expanded to 55,000 fish in a single pen after its initial crop grew faster than expected in the exposed waters of Bass Strait..png)
The move is intended to establish the
FIJI.png)
COOK ISLANDS.png)
