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.
The association will showcase industry innovation, sustainability and new consumer opportunities
ANFACO-CYTMA joins the 27th Conxemar, presenting with Spain’s MAPA a new campaign promoting canned seafood. It will also showcase NOVAFOODIES and IMPRESS, projects advancing sustainable foods, blue growth and innovation, while holding meetings with FAO, EUROFISH and INFOFISH.
MSC to host two events at Conxemar 2026: a toast to the certification of Argentine red shrimp and a session on Peruvian jumbo squid. Both events take place on Wednesday 7 October and are open to seafood professionals. Marine Stewardship Council (MSC) will be at the trade show from 6 to 8 October, at stand 3D47 at the IFEVI exhibition centre in Vigo, Spain.
Marine Stewardship Council (MSC) will once again take part in Conxemar, the international frozen seafood trade show held from 6 to 8 October at the IFEVI exhibition centre in Vigo, Spain. MSC will have its own stand, 3D47, and has prepared two events open to seafood professionals on Wednesday 7 October.
The Canadian Aquaculture Industry Alliance, the country’s main industry body for farmed seafood, has a new identity – it will now be known as Canadian Seafood Farmers (Producteurs Aquacoles Canadiens).
The national association says this reflects its alignment with all farming sectors across Canada. The change was voted on unanimously by members at the Alliance’s annual meeting last week.
The new name comes as the Canadian government makes economic resilience a central priority, and as food producers face a challenging trade environment. With the future of fish farming on Canada’s Pacific coast unclear, however, the industry faces what many see as a political battle for its survival.
Author: Vince McDonagh / Fish Farmer | Read the full article here
Cepea records declines in four of five key producing regions
Farmed tilapia prices fell in most regions tracked by Cepea.
Northern Paraná led at R$ 10.08/kg, versus R$ 8.73/kg in Western Paraná, a 15.46% gap. Triângulo Mineiro/Alto Paranaíba posted the sharpest weekly fall, 0.82%, to R$ 9.31/kg.
Search continues for missing Indonesian crewman after accident involving 11 people
Divers recovered the body of the 58-year-old Korean captain from the capsized 29-ton fishing vessel off Jeju. Of the 11 people aboard, 9 were rescued. The Coast Guard continues searching sea and air for a missing 27-year-old Indonesian crewman.
Norway’s September seafood exports reached €1.65 billion, as salmon volumes rose despite currency pressures
Norway exported seafood worth NOK 17.8 billion (€1.65 billion) in September, virtually unchanged from the same month last year, according to the Norwegian Seafood Council.The figure represents a decline of just NOK 27 million (€2.51 million) year on year, despite significant changes in export volumes, prices and currency movements.
Måsøval harvested 8,656 tonnes of Atlantic salmon in Q3 2026, up 44% year-on-year and above its 8,300-tonne guidance. Strong sea performance prompted the company to raise its 2026 harvest target from 28,000 to 29,000 tonnes.
Grieg Seafood is adjusting both its harvesting volume and cost expectations for 2026 following increased mortality at a farm in September.
Grieg Seafood stated in a stock exchange release on Friday that an unexpected algae incident led to gill damage and increased mortality at one of the company's locations.
According to the company, the biology in the sea was good throughout August, before the situation developed negatively at the site during September.
Author: Ole Andreas Drønen / fishfarmingexpert | Read the full article here
Japanese industrial group Yanmar has agreed a recommended cash offer for AKVA Group, valuing the Norwegian aquaculture technology supplier’s equity at approximately NOK 5.9 billion (€543 million).
The proposed offer of NOK 161 (€14.81) per share has unanimous board support. Shareholders representing approximately 92% of AKVA’s shares, excluding treasury shares, have committed to accept, subject to customary conditions, the company said in an October 2 stock-exchange announcement.
Source: SalmonBusiness | Read the full article here
A 29-ton longline fishing vessel carrying 11 people capsized 65 km northwest of Chagwi Island, Jeju. Nine foreign crew members—8 Indonesians and 1 Vietnamese—were rescued.
The Korean captain and 1 Indonesian remain missing as Coast Guard, Navy and fishing vessels search the area.
EU Moves to Shield Tuna Cannery Industry from Thai Competition European Union
European Commission Proposes Tariff Exemptions Conditional on Raw Material Caught Exclusively by Union Fleet
The European Union faces a decisive moment for the future of its fishing and processing se...
Oceanus peruvianus: when the Pacific was Peruvian Peru
A historical journey through the maritime prominence of Peru, from ancient indigenous navigation and the colonial viceroyalty era to the 200-mile declaration and the modern challenge of rebuilding a l...
Copyright 1995 - 2026 Seafood Media Group Ltd.| All Rights Reserved. DISCLAIMER
UNITED STATES
SPAIN.png)
The association will showcase industry innovation, sustainability and new consumer opportunities
CANADA.png)
The national association says this reflects its alignment with all farming sectors across Canada. The change was voted on unanimously by members at the Alliance’s annual meeting last week.
BRAZIL.png)
Cepea records declines in four of five key producing regions
SOUTH KOREA
Search continues for missing Indonesian crewman after accident involving 11 people
NORWAY.png)
Norway’s September seafood exports reached €1.65 billion, as salmon volumes rose despite currency pressures
Strong biological performance lifts 2026 guidance
Grieg Seafood stated in a stock exchange release on Friday that an unexpected algae incident led to gill damage and increased mortality at one of the company's locations.
JAPAN
Japanese industrial group 
