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.
Chile strengthens monitoring of fisheries and climate impacts
IFOP told Chile’s Fisheries Commission that El Niño 2026 is becoming intense to strong and may persist until autumn 2027, affecting resource availability, reproduction, landings, jobs and exports. SIOM supports monitoring, while SIMMO will integrate ocean, fisheries and aquaculture data.
The Organization of Fresh Fishery Producers of the Port of Vigo (OPPF-4) has expressed its deep dissatisfaction following the confirmation of the closure of the common pool for the anchovy (Engraulis encrasicolus) fishery in waters of ICES Zone 8, scheduled for 00:00 hours on September 29, 2026.
The OPPF-4 denounces that this measure is the result of deficient management by the Administration. The entity had already warned of the errors in the Resolution of September 16, 2026, issued by SEGEPESCA, which set a surplus allocation of nearly 800,000 kg to be distributed among purse seiners in the Cantabrian and Northwest fishing grounds—a figure they considered excessive.
The sector points out that the quantity allocated to other vessels equals the amount deducted from the common pool, demonstrating an unequal distribution. According to the OPPF-4, this scenario violates Order APA/377/2026, which requires ensuring fishing access for vessels included in the common pool while leaving a significant surplus unutilized for the rest of the fleet.
Key agreement supports vessels, jobs and access to strategic fishing grounds
Spain urged the EU to renew the Mauritania protocol before November 15. It affects around 20 Canary tuna and artisanal vessels, 200 fishermen plus hundreds of indirect jobs. Fleets from 10 EU states can catch up to 280,050 t/year of shellfish, demersal fish, tuna and small pelagics.
Two European black soldier fly (Hermetia illucens) farmers today published a jointly-written white paper that sets out what they say is a more real-world, up-to-date method of assessing the use and sustainability of insect ingredients in animal and aquafeed.
“Life Cycle Assessment (LCA) provides an essential foundation, but it does not always capture the full impact of ingredient choices within a changing food and feed system,” argue France-based Innovafeed and Dutch company Protix.
At scale, factors such as competition for raw materials, land-use implications, alternative uses of co-products and functional benefits in animal nutrition can materially influence the overall outcome.
Author: Gareth Moore / fishfarmingexpert | Read the full article here
Frøy has launched a new 4,500m³ wellboat that will operate under a long-term contract for salmon farmer SalMar.
The Frøy Frohav was launched at the Murueta shipyard outside Bilbao, Spain, and is scheduled for completion in October 2027. The vessel is nearly 90 metres long and has been designed for the transport and handling of live fish.
The vessel will use diesel-electric hybrid propulsion supported by a battery pack. A redesigned well circulation system is intended to improve water quality while reducing power consumption, including through shorter pipe runs and lower pumping heights.
Source: SalmonBusiness | Read the full article here
The Norwegian Seafood Council says the UK is one of the most stable and attractive markets for the country’s salmon.
New figures show that Norwegian salmon continues to play a central role in the UK seafood category, with total sales worth around £1.7 billion and farmed salmon accounting for approximately 92% of its seafood retail sales.
The Seafood Council believes several consumer trends are continuing to support demand. For example, raw consumption, particularly through sushi, has moved firmly into the mainstream, with sushi now worth £228 million in UK grocery retail and salmon accounting for more than half of consumption.
Author: Vince McDonagh / Fish Farmer | Read the full article here
12 expatriate workers detained for unlicensed fishing in Duqm
Omani authorities seized a commercial vessel in the Sea of Duqm for using prohibited nets. 12 expatriate workers were detained for fishing without licences.
The vessel, illegal gear and catch were confiscated, and the case was referred for legal action.
Aquaculture drives growth as output reaches 3,739.04 MT
Davao del Sur fisheries output climbed 20.8% in Q2 2026 to 3,739.04 MT. Aquaculture, accounting for 80.4%, rose 22.8% to 3,005.83 MT, led by milkfish at 2,211.23 MT.Marine cage production jumped 30.2%, strengthening the province’s overall fisheries performance.
Court found the state failed its constitutional duty to protect fish stocks
North Carolina appealed an August ruling that found all 13 state-managed coastal fish stocks, including flounder and shrimp, are currently not viable. The state cites climate change and budget limits, while conservation groups seek faster action to rebuild depleted stocks.
eCDT rollout strengthens traceability and fight against IUU fishing
Ho Chi Minh City ordered all fishing vessels 6 metres or longer to install eCDT by October 30. Boats without the system cannot leave port. The measure strengthens catch traceability, IUU fishing controls and compliance for seafood exports to the EU.
UNITED STATES
CHILE.png)
IFOP told Chile’s Fisheries Commission that El Niño 2026 is becoming intense to strong and may persist until autumn 2027, affecting resource availability, reproduction, landings, jobs and exports. SIOM supports monitoring, while SIMMO will integrate ocean, fisheries and aquaculture data.
SPAIN.png)
The Organization of Fresh Fishery Producers of the Port of Vigo (OPPF-4) has expressed its deep dissatisfaction following the confirmation of the closure of the common pool for the anchovy (Engraulis encrasicolus) fishery in waters of ICES Zone 8, scheduled for 00:00 hours on September 29, 2026..png)
Key agreement supports vessels, jobs and access to strategic fishing grounds
FRANCE.png)
“Life Cycle Assessment (LCA) provides an essential foundation, but it does not always capture the full impact of ingredient choices within a changing food and feed system,” argue France-based 
NORWAY
The Frøy Frohav was launched at the Murueta shipyard outside Bilbao, Spain, and is scheduled for completion in October 2027. The vessel is nearly 90 metres long and has been designed for the transport and handling of live fish..png)
OMAN
PHILIPPINES
Aquaculture drives growth as output reaches 3,739.04 MT.png)
Court found the state failed its constitutional duty to protect fish stocks
VIET NAM
eCDT rollout strengthens traceability and fight against IUU fishing
