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Tiny Predator has Large Effect on Lake Huron
News release from the U.S. Geological Survey.

An invasive species, the spiny water flea, is likely a primary driver of changes in Lake Huron’s food web over the past decade, according to a new U.S. Geological Survey study.

The USGS research suggests that consumption of prey by invertebrates is outweighing consumption by fish in Lake Huron, and one invertebrate in particular – the invasive Bythotrephes, or spiny water flea – is likely a primary driver of changes in the food web. This predator ate 78 percent of all zooplankton prey consumed at the study sites, said Dr. David B. Bunnell, USGS scientist and lead author of the report.


 
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