Grass carp reproducing in Great Lakes watershed

Scientists say that, for the first time, they have found evidence of Asian carp reproducing within the watershed surrounding one of the Great Lakes. Four grass carp caught by a commercial fisherman in October 2012 in the Sandusky River in Ohio were extensively analyzed by U.S. Geological Survey scientists. By examining bones, known as otoliths, … Read more Grass carp reproducing in Great Lakes watershed