Low oxygen levels in coastal waters interfere with fish reproduction by disrupting the fishes’ hormones, a marine scientist from The University of Texas at Austin Marine Science Institute has found.

The quality of giant bluefin tuna caught in the Gulf of Maine has declined significantly since the early 1990s, researchers at the University of New Hampshire have found by analyzing detailed logbooks from a commercial tuna grader at the Yankee Fisherman’s Co-op.

Originating in Central Africa, Peters' elephantnose fish (Gnathonemus petersii), finds its bearings by means of weak electrical fields. Scientists from the University of Bonn have now been able to show how well this works. In complete darkness the animals can even distinguish the material of objects at a distance or dead organisms from living ones.

The emerging threat of pesticide resistance means that biological malaria control methods are once again in vogue. New research published in the online open access journal BMC Public Health shows how Nile tilapia, a fish more commonly served up to Kenyan diners, is a valuable weapon against malaria mosquitoes.

A small tropical fish, the curiosity of a Geisinger research scientist and some college students have created the perfect storm of sorts in an attempt to find a cure for one of the world’s most devastating neurological diseases.

Zebrafish cost about a dollar at the pet store. They grow from eggs to hunting their own food in three days. Adults can lay up to 500 eggs at once… and you have more in common with them than you think.

Cornell researchers have discovered that in the battle of the sexes, African electric fish couples not only use specific electrical signals to court but also engage in a sort of dueling "electric duet."

Recent studies published in the journal Cancer Science have disproved the common myth that consumption of red meat increases colorectal cancer risk.

Help STOP the Spread of Viral Hemorrhagic Septicemia virus (VHSv). A deadly new fish virus that caused huge fish kills in several eastern Great Lakes in 2005 and 2006 is likely already in Lake Michigan and may be in Lake Superior and the Mississippi River. We need your help to ensure this virus doesn't spread to inland lakes and rivers, where it could potentially devastate fish populations and ruin our fishing.

Researchers have found that a diet rich in fish, seafood, and grains - also called polyunsaturated fats - is better at preventing heart disease than a diet containing olive oil, nuts, and avocados - called monounsaturated fats. Although both types of fats are healthy, people should probably include more of the first than the second in their diet to keep a healthy heart, the scientists say.