| For all the trouble they bring, it turns out the invasive round goby might also be doing the Great Lakes a small service. In addition to being a valuable food source for numerous sport fish, the small bottom feeder also has an appetite for another, more notorious Great Lakes invader — the zebra mussel. “When.. Read more |  |
Tag Archives: zebra mussels
Great Lakes round gobies a mixed blessing
Quagga and zebra mussels unsettle Great Lakes’ ecosystems
| Tiny zebra and quagga mussels are making big trouble for Great Lakes ecosystems. The invading mussels first arrived in the late ’80s and mid ‘90s respectively as stowaways on European freighters. Two decades later, the shellfish have drastically changed the environments of the Great Lakes. The zebra mussels are more familiar.. Read more Posted in Lake Biology Also tagged Great Lakes, invasive species, quagga mussels, research Leave a comment
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Lake Erie aquatic species are affected differently by hypoxia events
| A recent study conducted on aquatic life in Lake Erie has shown that hypoxia events in the lake have a harmful impact on all species, though some are more affected than others by the oxygen deficiency. Aquatic environments are considered hypoxic when less than two parts per million of dissolved oxygen is present. It is.. Read more Posted in Lake Biology, Lake Chemistry Also tagged Algae, algal bloom, dead zones, dissolved oxygen, Great Lakes, hypoxia, Lake Erie Leave a comment
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Invasive mussels may worsen avian botulism outbreaks
| Lake Michigan experienced a particularly severe outbreak of avian botulism this year, resulting in greater wildlife fatalities and lasting longer than other recent occurrences. The last notable die-off in Lake Michigan occurred in 2007, when an estimated 8,000 to 10,000 birds were killed. Scientists estimate this year’s numbers.. Read more Posted in Lake Biology Also tagged avian botulism, Great Lakes, invasive species, Lake Michigan, quagga mussels, waterbirds 1 Comment
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Zebra mussels found in two critical Connecticut lakes
| Zebra mussels have been found in two ecologically critical lakes in Connecticut — Lake Lillinonah and Lake Zoar. Connecticut Department of Environmental Protection officials are concerned the invasive species’ proliferation in the lakes could threaten several native fish species as well as bald eagles that use Lillinonah as a.. Read more Posted in Lake Biology Also tagged eutrophication, invasive species, phosphate, phosphorus, phytoplankton, runoff Leave a comment
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