08 Sep '11, 6pm

Giant crabs invade Antarctica. At least the scientists will have something to eat.

Huge crabs more than a metre across have invaded the Antarctic abyss, wiped out the local wildlife and now threaten to ruin ecosystems that have evolved over 14 million years. Three years ago, researchers predicted that as the deep waters of the Southern Ocean warmed, king crabs would invade Antarctica within 100 years. But video taken by a remotely operated submersible shows that more than a million Neolithodes yaldwyni have already colonised Palmer Deep, a basin that forms a hollow in the Antarctic Peninsula continental shelf. They are laying waste to the landscape. Video footage taken by the submersible shows how the crabs prod, probe, gash and puncture delicate sediments with the tips of their long legs. "This is likely to alter sediment processes, such as the rate at which organic matter is buried, which will affect the diversity of animal communities living in the se...

Full article: http://www.treehugger.com/files/2011/09/giant-crabs-invad...

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Meter-long king crabs invade Antarctic waters, ...

grist.org 08 Sep '11, 2pm

On the seafloors of Antarctic basins, the water has warmed by just 0.27 degrees C — but that’s enough to allow giant king ...