Breeding & genetics

Problems with lice and losses can be heavily reduced by placing farmed fish in closed systems until the fish reach a weight of one kilo. This has been shown by research conducted by scientists at Uni Research in Bergen, Norway.

This guide from Infonet-Biovision provides easy to follow information on hatchery management and tilapia fingerling production.

The evolution of freshwater shrimps species living in both sides of Central America, isolated by the closure of Isthmus of Panama (3 million years ago) were studied by molecular tools.

Individual differences in moving activity in a novel environment are linked to individual differences in vulnerability to angling, according to an experimental study completed at the University of Eastern Finland and the Finnish Game and Fisheries Research Ins…

New research has discovered that the reduction of gonadal stem cells will yield more male zebrafish. The findings, by Lszl Orbn et al, Temasek Life SciencesLaboratory, suggest that a stem cell counting mechanism in the zebrafish gonad is important for determin…

Today, ray-finned fish, which belong to the bony fish, are by far the most biodiverse fish group in both salt- and freshwater.

Half-century-old roads connecting portions of Bahamian islands while fragmenting the tidal waters below leads to rapid and interesting changes in the fish living in those fragmented sections, according to a new study from North Carolina State University.

Researchers report that some stickleback fish fathers can have long-term effects on the behavior of their offspring. The most attentive fish dads cause their offspring to behave in a way that makes them less susceptible to predators. These behavioral changes a…

Jan G. Davidsen and his graduate students are spies. They use listening stations and special tags they attach to their subjects to track their movements. They follow their subjects winter and summer, day and night.They are in pursuit of secrets and are relentl…

Eyeless Mexican cavefish show no metabolic circadian rhythm in either light and dark or constant dark conditions, according to a study published September 24, 2014 in the open-access journal PLOS ONE by Damian Moran from Lund University, Sweden, and colleagues…

Fish are not silent creatures. Just like the terrestrial world, theres a veritable symphony of sound echoing under the sea.

Ectoparasites are key agents responsible for causing diseases in farmed fish. The Nile tilapia, in particular, has been shown to be susceptible to infestation by trichodinids and monogeneans, write Santiago Benites de Pdua, Aquivet Sade Aqutica, Roney Nogueira…