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

channel catfish

Innovation & Investment

Experimental aquaponics system in Costa Rica

This study evaluated the performance and production of channel catfish and freshwater prawns and three varieties of lettuce – American, Romaine and Rose – in a research aquaponics system. 

Health & Welfare

Near-infrared spectrometers determine stage maturity in channel catfish

This study evaluated the feasibility of a portable, hand-held micro near-infrared spectrometer to objectively determine the stage of maturity in channel catfish. Such a rapid, non-invasive method to stage fish maturity in hatcheries would improve the efficiency of hatchery production. 

Intelligence

On GM foods, part 4: Let’s examine our needs

Scott Nichols concludes his four-part series about GM foods with a simple question about transgenic animals: Are they truly meeting a need? We need more food and we need better nutrition. Both desires should be achieved without increasing environmental impacts. 

Health & Welfare

Virulent Aeromonas hydrophila in channel catfish

This study investigated factors that predisposed catfish to motile Aeromonas septicemia (MAS) caused by virulent Aeromonas hydrophila (vAh). Results revealed that wounding on fish body surface was important for vAh infection and disease development. 

Intelligence

Biofloc technology production promising in temperate zones

A study was conducted to assess the feasibility to grow Channel catfish (Ictalurus punctatus) in an outdoor biofloc system during winter in a temperate zone. High biomasses of market-size channel catfish were successfully maintained through the winter with high survival