Do Fish Use Cold Current To Cross Tropics

Publication: National Geographic News   Date: February 5, 2003   View Article

A big, old Patagonian toothfish found thousands of miles from home is bolstering the theory that large fish can take advantage of very deep, cold ocean waters to cross the tropics from one polar region to the other, swimming under warm water in which they ordinarily could not survive.

The Patagonian toothfish (Dissostichtus eleginoides) is normally found in the icy sub-Antarctic waters off South America. So when a commercial halibut fisherman pulled one in November 2000 from the Davis Straight off the coast of Greenland, he was surprised.

Related Posts

Less Ice or More? What You Need to Know About Antarctica’s Meltdown

Melting ice a ‘sleeping giant’ that will push sea levels higher, scientist says

Harsh carbon fee needed to avert disaster, warns top climate scientist

Volcano under Antarctic ice may erupt, accelerate melting

Message from the mud: East Antarctic meltdown could cause massive sea rise

© 2008-2010 Collected Writings By John Roach