Millions of King Crabs Turn Sea to Desert

Reporter writes "Russian biologist, Yuri Illarionovich Orlov, succeeded where Stalin failed by implanting the red king crabs into the Barents Sea. Except now, 40 years later, he's getting worried. Why? The giant crabs are clawing their way along the bottom of the Barents Sea are spreading like wildfire along the northern coasts of Russia and Norway and will continue to spread as far as Gibraltar, the southern tip of the European continent. How come? One female crab can lay 500,000 eggs at a time, of which one or two percent will become crabs. The kicker is that the species is protected by diplomatic accords between Norway and Russia, so fishing quotas are in place. From the article: "The Kamchatka crab, also known as the Alaskan or red king crab, was introduced into the Barents by the Soviets in the 1960s — some 30 years after a first, failed attempt by Stalin — in a bid to bolster Russia's food supplies. ... The crabs weigh up to 12 kilograms (26 pounds) and measure up to two meters (6.5 feet) from pincher to pincher. While they remain far from Europe's tourist beaches for the time being, their impact on the environment is already a major cause for concern in the Arctic"."

Comments

Re:Always a bad idea

[nosfucious]

The rabbits that were introduced in to Australia have been an environmental nightmare.

In certain conditions they populate so quickly you'll end up with a plague. The munch on all available grass and low level plants. Just leaving sand and soil behind. This valuable topsoil then gets blown away by wind or the occasional storm. Their burrows collapse and cause further run off problems after storms. Much of Australia doesn't have huge trees to bind the soil together. That's just one aspect.

It only took a few rabbits too. Released just near Melbourne. Now they're all over the place.

Mice (at times), Cane toads, Crown of Thorns starfish are all big problems. Foxes are a concern, but not on the same scale, or is that Tassie only? Domestic and stray cats are just as bit a problem in outer suburban/semi-rural areas, going after the native birds and small animals.

All systems will find an equilibrium. Trouble is, that (nearly) isolated systems such as Australia don't have the natrual competitors for introduced species. They would form over time, just not in the short term that we live in and see. Foxes were introduced to try and get the rabbits, Cane Toads to get the Prickly Pear. They just caused thier own problems.