New invasive species joins well-known zebra mussel in Lake Superior
Canadian Press
Published: Thursday, January 11, 2007
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DULUTH, Minn. (AP) - Another invasive species has been found for the first time in Lake Superior.
Tests recently confirmed the presence of the quagga mussel in Duluth-Superior Harbor. The quagga mussel resembles another well-known invader, the zebra mussel. Quagga mussels can live in deeper water than zebra mussels but aren't considered likely to spread far beyond the Duluth harbour.
Quagga mussels already are abundant in the lower Great Lakes. The mussels originally came from the Black and Caspian seas of Eastern Europe and are believed to have been carried into the Great Lakes in the ballast water of trans-oceanic ships.
The quaggas consume food that's essential for small fish. Fewer small fish in the lakes means a shortage of food for larger fish.
Quagga Mussels Invade Lake Superior
Started by
Guest_Histrix_*
, Jan 11 2007 06:51 PM
8 replies to this topic
#2
Guest_Brooklamprey_*
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Posted 11 January 2007 - 10:38 PM
Wow more good news.... first Zebras in Nevada and now Quagga established in Duluth...Sure they won't spread.
#3
Guest_Histrix_*
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Posted 12 January 2007 - 03:51 PM
More good news -- Hemimysis anomala and some other nasty carnivorous beast of a shrimp have decided to make the Great Lakes their new home. I wonder how many more it will take for people to wake up and smell the roses...
#4
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Posted 12 January 2007 - 04:35 PM
More good news -- Hemimysis anomala and some other nasty carnivorous beast of a shrimp have decided to make the Great Lakes their new home. I wonder how many more it will take for people to wake up and smell the roses...
I think that was supposed to be 100 species ago..What are we up to now, around 180+ in the exotic fauna count now for the Great lakes?
#5
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Posted 12 January 2007 - 06:24 PM
There appear to be 180+ positively ID-ed invasives at this point. Hemimysis is listed as being discovered in 2006, and I am sure there are more newcomers on the way. It's disconcerting that most of the recently ID-ed organisms are parasites and viral or bacterial diseases, as these can potentially infect other things besides just fish.
#6
Guest_edbihary_*
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Posted 12 January 2007 - 08:00 PM
Is there a list of these 180+ invasives somewhere, in the Internet perhaps?
#7
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Posted 12 January 2007 - 08:17 PM
Is there a list of these 180+ invasives somewhere, in the Internet perhaps?
http://nas.er.usgs.gov/
You can do detailed searches for all of the great lakes states.
#8
Guest_Histrix_*
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Posted 12 January 2007 - 08:20 PM
Is there a list of these 180+ invasives somewhere, in the Internet perhaps?
GLERL has the list and some other good links on their website:
http://www.glerl.noa...grams/invasive/
#9
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Posted 12 January 2007 - 08:22 PM
GLERL has the list and some other good links on their website:
http://www.glerl.noa...grams/invasive/
Yeah and that one too
Thanks kate.
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