Study: Fish Devastated By Sex-changing Chemicals In Municipal Wastewater; Estrogen Eyed
New Brunswick, Canada - Feb 16, 2008 15:14 EST
While most people understand the dangers of flushing toxic chemicals into the ecosystem through municipal sewer systems, one potentially devastating threat to wild fish populations comes from an unlikely source: estrogen.
After an exhaustive seven-year research effort, Canadian biologists found that...
New Fish Parasite Species Described; Farmed Fish Infected With Serious Disease
Oslo, Norwary - Feb 11, 2008 17:32 EST
While studying towards his doctorate of philosophy, Anders Jørgensen discovered a previously undescribed species of parasite that infects farmed fish and produces serious disease.
Single-celled parasites of the genus Spironucleus are known to produce serious illness in farmed and aquarium...
Study Links Population Density, Farming To Intersex Fish
Reston, Virginia - Feb 7, 2008 18:07 EST
For several years, scientists have been working to determine why so many male smallmouth bass in the Potomac River basin have immature female egg cells in their testes - a form of intersex. They are closer to finding an answer.
Canadian Government: Annual Seal Hunt Misinformation Campaign Starts Again
Ottawa, Canada - Feb 6, 2008 18:40 EST
It's that time of year again when certain groups begin distributing misinformation about Canada's harp seal hunt, which tarnishes the reputation of Aboriginal and Atlantic sealers. As Canada's Minister of Fisheries and Oceans, I want to make sure the facts...
See-through Fish Is Created To Give A Clearer Idea Of How Cancer Spreads
Boston, Massachusetts - Feb 6, 2008 17:59 EST
Zebrafish are genetically similar to humans and are good models for human biology and disease. Now, researchers at Children's Hospital Boston have created a zebrafish that is transparent throughout its life. The new fish allows scientists to directly view its...
New Radar Satellite Technique Sheds Light On Ocean Current Dynamics
Frascati, Italy - Jan 24, 2008 12:57 EST
Ocean surface currents have long been the focus of research due to the role they play in weather, climate and transportation of pollutants, yet essential aspects of these currents remain unknown.
By employing a new technique – based on the same...
New Tool Developed To Study Drifting Larvae And Juvenile Marine Species
Miami, Florida - Jan 19, 2008 14:37 EST
One of the most significant questions facing marine ecologists today, is just how much of an impact global variations in the environment are having on the dispersal of larval and juvenile marine species from open oceans to coral reefs. Previously,...
Sea Otter Study Reveals Striking Variability In Diets And Feeding Strategies
Santa Cruz, California - Jan 14, 2008 18:51 EST
Ecologists have long observed that when food becomes scarce, animal populations exploit a wider range of food sources. So scientists studying southern sea otters at different sites in California's coastal waters were not surprised to find that the dietary diversity...