Submission + - Giant crab invasion looms in Antarctica (mongabay.com) 4
Damien1972 writes: A 0.12 degree C rise in temperature will spur giant King Crabs to invade the Antarctic continental shelf, causing havoc for its unique ecosystem, reports a study published in the Proceedings of the Royal Society B. Temperatures are currently rising 0.01-0.02 per year, meaning it could be less than a decade before the crabs chow down on the soft-bodied invertebrates that currently rule the shelf. “It's much more reminiscent of the Paleozoic era before all those shell-crushing crabs and bony fish and bottom-feeding sharks and rays evolved," said marine biologist Richard Aronson. “The bottom communities in Antarctica are anachronisms. They're a window to the past. They're going to get modernized when these crabs show up.”