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

Stephen A. Smith


Trace minerals in tilapia fillets, part 2

In part 2 of this study, a seven-week fish feeding trial was conducted to study the influence of organic versus inorganic dietary selenium on Nile tilapia. 

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Oyster culture in recirculating systems

Environmental and other challenges have led to reduced harvests of wild oysters in the United States. In a study, the authors evaluated oysters cultured in a recirculating aquaculture system with zero water exchange for several months. 

Health & Welfare

High nitrate levels toxic to shrimp

Shrimp exposed to high concentrations of nitrate exhibit shorter antennae, gill abnormalities and hepatopancreas lesions. Nitrate toxicity is more of an issue for shrimp raised in lower-salinity waters. 

Health & Welfare

Diseases of cultured yellow perch

Yellow perch is an emerging aquaculture candidate susceptible to a wide range of disease syndromes with infectious and non-infectious causes.