Related topics: fish · algae · mississippi river · invasive species

Malawi's prized chambo fish faces extinction

In the decade that fisherman Edward Njeleza has been trawling the deep, clear waters of Lake Malawi in Africa's Great Rift Valley, he has seen his once abundant catch shrink by 90 percent.

Lake Superior may see coldest surface water since 1979

(Phys.org) —Surface-water temperatures above the deepest parts of Lake Superior are expected to be at least 6 degrees Fahrenheit colder than normal by August, delaying the onset of the evaporation season and raising water ...

Avoiding alien marine invaders

Picture a young man seated on the deck of an old wooden sailing ship, a whaling vessel made of white oak, yellow pine and hemlock, built in 1841, the last of its kind. He is reading—what else?—"Moby Dick."

Under-ice observatory collects Great Lakes data

Guy Meadows loves winter. It gives the director of Michigan Technological University's Great Lakes Research Center (GLRC) in the cold, snowy Upper Peninsula a chance to do something few others can: study the Great Lakes ...

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