News features and technical articles about the evolution of aquaculture, one of the world’s fastest growing industries.

microalgae

Aquafeeds

Optimizing culture of the weissflogii diatom

The diatom Thalassiosira weissflogii is important in the aquaculture industry to feed shrimp and shellfish larval stages in hatcheries. This study examined culture conditions for this diatom and determined that it can be successfully cultured semi-continuously and without population crashes. 

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Responsibility

Can sustainable mariculture match agriculture’s output?

Global, sustainable mariculture production, developed on a massive, sustainable scale and using just a small fraction of the world’s oceanic areas, could eventually match the output of land-based agriculture production. Scale and international law considerations require the involvement of many 

Aquafeeds

Bridging the omega-3 gap with methane, microalgae

Innovation is leading to new ingredient options for renewable sources of omega-3 fatty acids. But Replicating long chain fatty acids is a tall order, Advocate contributor Lisa Duchene discovered. 

Aquafeeds

Novel light bank reactor aids in microalgae culture

The control of temperature and light intensity in microalgae culture in outdoor tanks is difficult. Progress in algal biotechnology and the use of photo-bioreactors, metabolic engineering and other advances supported development of a novel underwater light bank reactor that allows 

Health & Welfare

Proper water circulation in aquaculture ponds critical

Promoting water circulation during the day time is an effective strategy to enrich pond water with oxygen produced by photosynthesis, and can significantly reduce the costs of night time supplemental aeration. 

Aquafeeds

Microalgae provide food, feed, fuel

About 30 percent of global microalgae production goes to animal feeds, with large applications in aquaculture, particularly for larval stages.