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The Lake Michigan Doughnut

The AP reports that a doughnut-shaped area of newly discovered plant life that covers much of Lake Michigan's southern basin may hold the key to the survival of many species in the lake. The area lies 6-10 miles offshore and stretches about 60 miles from north to south (roughly from Muskegon to Gary, Ind.) and 48 miles from east to west, with a large hole in the center. It is composed of chlorophyll that seems to go from the surface to the bottom. W. Charles Kerfoot, a professor of biological sciences at Michigan Technological University in Houghton who has been studying the phenomenon, hypothesized that there may be much more food in the lake than previously believed and this ring could be very important for certain types of zooplankton.

Read Research may have uncovered key to species survival in Lake Michigan in the Detroit News

Posted/updated Mar 27, 2006
by Andrew McFarlane (Absolute Michigan)