| 07 August 2010

Credit: OakleyOriginals A university study on Lake Erie walleye may help scientists spot rivers that are at risk of overfishing. Researchers at Ohio State analyzed chemicals found in walleye ear bones, and were able to figure out which fish returned to their hatching site to spawn, and which ones went elsewhere, creating some rivers that are vulnerable to overfishing. The fish seem to be saying, "Can you hear me now?"... Read the full story on TreeHugger