invasion – Sharks, crabs and other predators

Unique marine life in Antarctica will be at risk from an invasion of sharks, crabs and other predators if global warming continues, scientists warn. Crabs are poised to return to the Antarctic shallows, threatening creatures such as giant sea spiders and floppy ribbon worms, says a UK-US team. Shrimp, ribbon worms and brittle stars are likely to be the most vulnerable to population declines.
news.bbc.co.uk, 16 Feb 2008