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One simple method of treating high-nitrogen wastewater in shrimp aquaculture is the use of sequencing batch reactors, which are simple in design. 

The most important quality issue for tilapia is the presence of off-flavors that derive from cyanobacteria and actinomycetes, which can be addressed by depuration. 

The latest virtual GOAL conference session dissected the role of seafood production systems and how they perform in a changing climate. 

Hiddenfjord executive’s insistence that “fish should never fly” flies in the face of industry norm. This Faroe Island salmon company intends to do things greener. 

Restored mangroves had significantly higher plant litterfall production than intact mangroves, but no significant difference in leaf litter decomposition. 

A second hybrid feed barge will reduce carbon footprint and noise at the Vestness site in Westray, Orkney. 

Follow the Responsible Seafood Advocate’s coverage of the North Atlantic Seafood Forum in Bergen, Norway. 

In the water of aquaculture systems, certain bacteria transform potentially toxic ammonia to nontoxic nitrate through nitrification. 

The use of biofloc technology (BFT) is increasing in the commercial production of several important aquatic species, as it can increase production and efficiency and minimize the potential impacts of effluents. This study showed that BFT systems without water exchange and supplemented with molasses or dextrose as a carbon source yield adequate production and water quality during the hatchery phase of L. vannamei. 

A trial in a lined, greenhouse-enclosed raceway evaluated the use of a heterotrophic biofloc system equipped with aeration, supplemental oxygen injection and centralized heating to achieve good shrimp production. 

The authors tested the effects of sequencing autotrophic and heterotrophic dominance on water quality levels in a recirculating system raising shrimp. Culture tanks were inoculated with nitrifying bacteria, and chemoautotrophic dominance was maintained. 

Limit pond soil analyses to soil particle size for use in pond construction decisions, initial analysis of total sulfur, occasional analyses of total nitrogen, and routine analyses of pH and soil organic carbon. 

In a study, microbial flocs contributed about 50 percent of feed material as dry solids and about 50 percent of the protein requirement of tilapia. 

Scottish Sea Farms has added a hybrid power workboat to its fleet, which could cut fuel costs by up to 50 percent and reduce its overall carbon footprint. 

Seagriculture, the first international seaweed conference, covers all angles of seaweed farming for food, energy and climate change solutions. 

Integrated multi-trophic aquaculture involves cultivating fed species with extractive species that utilize inorganic and organic wastes for their growth. 

NovoNutrients, a microbial meal producer using industrial waste as an energy source, has secured $9 million in equity to scale production. 

Leading scientists to update climate change indicators annually to stay informed on critical aspects of global warming.