ENN
Environmental News Network -- Know Your Environment
The vaccines used by commercial fish farmers are not protecting fish from disease, according to a new study.
The study was compiled by researchers at the University of Waterloo, the Pontifical Catholic University of Valparaiso and Chile’s University of Valparaiso. It showed vaccinated fish tend to show more symptoms when contracting diseases, with the health impacts and ultimately deaths occurring as if they’d never received a vaccine.
Eastern cougars once roamed every U.S. state east of the Mississippi, but it has been eight decades since the last confirmed sighting of the animal. Now, the U.S. Fish and Wildlife Service has officially declared the subspecies extinct and removed it from the U.S. endangered species list.
A strip of chromatography paper similar to that used in rapid pregnancy tests is the basis of a bio-sensor for detecting malaria that has been developed by Brazilian researchers.
By studying wild rice in lakes and streams, a team of researchers led by the University of Minnesota has discovered that sulfate in waterways is converted into toxic levels of sulfide and increases other harmful elements. This includes methylmercury, the only form of mercury that contaminates fish.
To shine light on and conserve rare shark, ray, and chimaera species (chondrichthyans), SFU researchers have developed a fully-resolved family tree and ranked every species according to the unique evolutionary history they account for.
We often “flush it and forget it” when it comes to waste from toilets and sinks. However, it’s important to be able to track this wastewater to ensure it doesn’t end up in unwanted places. A group of Canadian scientists has found an unlikely solution.
