No one is sure what is going on, but such rapid change is a potential alarm bell.
Changes in the biology of the Great Lakes once crept along at the snail's pace of evolution. Today, nervous scientists see radical changes occurring in years rather than centuries.
For example, salmon fishing in Lake Huron collapsed within two years of the disappearance of alewives, their primary prey fish.
http://www.theithacajournal.com/apps/pbcs.dll/article?AID=/20060516/LIFESTYLE05/605160302/1029
Posted by Dave at May 16, 2006 11:05 AM