Forty-one towns in Minas Gerais and Espírito Santo, Brazil were affected when the Fundão iron mine tailings dam in Mariana, Minas Gerais state (Southeast Brazil) burst on November 5, 2015, and 19 people died. The toxic waste is estimated to have contaminated 240.8 hectares of Atlantic Rainforest and killed 14 metric tons of fish. Brazilian
A half century after the passage of the federal Clean Water Act, 50% of U.S. river and stream miles are so polluted that they are classified as “impaired.” Not only are these waterways impaired, but so are 55% of lakes, ponds and reservoirs and 25% of bays, estuaries and harbors. This means that none of
In a study recently published in the journal, “Aquatic Toxicology,” researchers found that while concentrations of the herbicide fluridone similar to those used when it’s applied to lakes to control Eurasian watermilfoil and hydrilla can have major impacts on fish reproduction. A research team with the Department of Forest and Wildlife Ecology at the University
While the true solution to curb the pollution problem lies in several areas such reducing the single-use plastic items as well as better recycling programs. However, Aquarius Systems does offer a Solution to the Pollution that plagues rivers, lakes, reservoirs, and other waterways; it is an Aquatic Trash Skimmer. Marine debris is not a new
The U.S. Army Corps of Engineers is taking some innovative, and perhaps unusual, steps to keep Asian carp (the silver and bighead carp in particular) from infesting the Great Lakes. In the next several years several layers of protection will be used to thwart the arrival of the carp by way of the Chicago-area rivers
Heron Lake in far southwestern Minnesota was once considered one of North America’s most productive waterfowl lakes and in an effort return the lake into a productive waterfowl rest stop, the DNR has once again revamped their management plant. The DNR will systematically be adding predatory fish to sharpen the attack against the destructive carp,
The percentage of water birds at the Kaziranga National Park and Tiger Reserve in Assam declined by 28.61% in one year. KNP & TR Director said that the decrease in the number of water birds was due to the accumulation of water hyacinth in Rowmari wetland under the Laokhowa wildlife sanctuary. The national park is
Winterkill occurs when fish suffocate due to a lack of dissolved oxygen in the water and is the most common type of fish kill. Dissolved oxygen is required by fish and almost all other forms of life living in water bodies. Even bacteria living on lake bottoms require dissolved oxygen to survive. Low oxygen levels
It goes without saying that naval officers are interested in water. But officers from around the world got a brand-new view of water issues and solutions during a visit to the Global Water Center in Milwaukee. The visit was part of the Naval Staff College professional development program at the U.S. Naval War College in
If you drove past Elk Lake in Hoffman, Minnesota this past summer, you may have seen an unusual sight: A mechanical harvester out on the water cutting and removing aquatic vegetation. This is the first time the city has hired a mechanical harvester, but they were dealing with a bumper crop of lakes weeds. A