Issue Date: Feb 15, 2008
free style: The Chinook salmon swam from the Pacific Ocean to the South Atlantic Ocean where they don't naturally occur, says a study. The study projected that the silvery predators with a "healthy appetite" threaten to deprive penguins and sea mammals of food. Chinook salmon are a Pacific species that has recently been established in the Santa Cruz River system in the Patagonia region of Argentina. The cooler waters of southern Argentina make the region most vulnerable to invasion, a researcher said.