News tagged with lake

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Sandcastle-building fish offer evolution clue

(Phys.org) —In Lake Malawi, East Africa, there are around 200 different species of cichlid fish that once or twice a year build large sand structures (known as bowers) on which the fish mate. Each different ...

Dec 06, 2013
3.8 / 5 (5) 2 | with audio podcast

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."

Apr 25, 2014
4.5 / 5 (4) 1

Image: Yellowknife Bay formation on Mars

This mosaic of images from Curiosity's Mast Camera (Mastcam) shows geological members of the Yellowknife Bay formation. The scene has the Sheepbed mudstone in the foreground and rises up through Gillespie ...

Dec 11, 2013
5 / 5 (3) 0

Forest loss starves fish

Debris from forests that washes into freshwater lakes supplements the diets of microscopic zooplankton and the fish that feed off them – creating larger and stronger fish, new research shows.

Jun 11, 2014
5 / 5 (3) 0

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.

Jun 13, 2014
5 / 5 (3) 1