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Grown for hundreds of years, seaweed (sugar kelp, specifically) is the fruit of a nascent U.S. aquaculture industry supplying chefs, home cooks and inspiring fresh and frozen food products. 

Throughout Europe, debate is taking place as to whether new fish farms, wind farms, tourist facilities or marine and/or coastal protected areas should be established. Competition for space is increasing. In the COEXIST project, partners from 10 European countries are exploring these developments, aiming to increase synergies and reduce conflicts, particularly with regard to the fields of aquaculture and fisheries. 

In a study with gilthead sea bream, two test diets used primarily soy products as sources of protein and fat against a reference feed based largely on fishmeal and fish oil. 

Intensive production equipment and management techniques allow the Nuova Azzurro Fish Farm in Italy to raise about 50 metric tons of sea bass per raceway per year. 

As European aquaculture continues to diversify in the marine fish sector, technology advances and methodology in marine finfish hatcheries are proving vital. 

A novel liquid diet was developed and tested for first-feeding marine fish larvae. The diet was water stable, palatable and digestible. 

Recirculation systems provide a rearing medium that is qualitatively constant and adjustable, resulting in better survival and growth rates. 

Earth Ocean Farms has released another 30,000 juvenile totoaba into the Sea of Cortez in an effort to replenish stocks of the endangered fish. 

A new study suggests that sea bream larvae fed on a diet including Antarctic krill show increased survival rates and enhanced growth. 

There is a large potential to upgrade currently wasted raw materials like cod residuals into high-quality marine oils for feed ingredients. 

Sea & Flour is the first company to integrate seaweed into commercial baking with a patent approved process. 

Ava Ocean proves scallop harvesting in the Barents Sea can be done responsibly using its selective “shellfish picker" technology. 

Stock enhancement of Kuruma shrimp did not change genetic characteristics obtained by microsatellite markers in comparison to the original population. 

A new study details the rapid spread of the lionfish invasion in the Mediterranean Sea and its potential ecological impacts. 

A project in Florida is studying the feasibility of a marine aquaponic system containing red drum and two native saltwater species. Water that exits the plant raceways is filtered and recirculated to the fish tanks. In tests, sea purslane grew rapidly, while saltwort took almost four months to adapt. The fish exhibited high survival and achieved a feed-conversion ratio of 1.2. 

Fishmeal sparing in aquafeed is often limited by the presence of anti-nutritional factors found in plant-derived feedstuffs. Fermentation may be a cost-effective means of addressing such factors and improving utilization of plant ingredients in feed. 

After experiencing disappointing survival rates following traditional artemia-based rearing protocols, the French hatchery Aquastream turned to a micropellet alternative to artemia. 

Sea bream fry are produced using the greenwater technique in which microalgae are added to larval-rearing tanks during the first 20 to 30 days after hatching.