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

microalgae

Responsibility

Removing cyanobacteria and associated toxins in aquaculture ponds

Results of this study demonstrated that a commercial, granular, SCP-based algaecide corresponding to 2.5 mg/L H2O2 can be recommended as an eco-friendly strategy to effectively remove populations of the cyanobacterium Planktothrix sp. without compromising water quality or other plankton communities.  

Innovation & Investment

Algae innovators aim to freeze out early-stage shrimp losses

A greenhouse in Belgium believes its innovative shrimp feed product, made from freeze-dried microalgae, packs the necessary nutrients for the crustacean’s most vulnerable life stage: the first three days of its life. 

Aquafeeds

Green water meal has potential as aquafeed ingredient

Green water, which describes the typical water color in tropical aquaculture facilities, consists mainly of various phytoplankton species along with bacteria, protozoa and zooplankton. It is relatively easy to produce without any supplemented nutrients. 

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. 

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.