14 Apr '11, 3pm

Invasive mussels have triggered major ecological shift in Great Lakes, Michigan researchers say

14 Apr 2011: Invasive Mussels Trigger Major Ecological Shift in Great Lakes The rapid spread of non-native mussels in the Great Lakes has caused an unprecedented ecological shift in lakes Michigan and Huron , stripping the massive freshwater lakes of life-supporting algae, according to a new study by University of Michigan researchers. While the increased number of zebra mussels has Michigan Sea Grant A quagga mussel been observed in the lakes for decades, an even greater threat in recent years has been the spread of the closely related quagga, a fingernail-sized mussel that thrives in the lakes’ deep muddy bottoms. Each quagga mussel, billions of which now blanket the bottoms of lakes Huron and Michigan, filters about a quart of water daily, and feeds on algae that is a critical food source for other lake organisms — including the shrimplike Diporeia, which has long been ...

Full article: http://e360.yale.edu/digest/invasive_mussels_trigger_majo...

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