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Two Species of Elodea Could be the Demise of Alaska’s Pristine Waters
Two species of elodea have been found recently in a handful of lakes and sloughs in Alaska. While native in some of the lower 48 states, these species are the first invasive aquatic weeds in Alaska.

A big concern is how the alien weed will degrade fish habitat for species such as salmon, trout and grayling. Another is how to stop the spread.

Floatplanes are a diabolically effective way for the plant to colonize new lakes and rivers. In September, Steve Swenson, with the US Forest Service conducted an aerial study landed on elodea-infested Martin Lake. Before departing the aquatic plants were carefully removed from the rudders of the float plane.

However, shortly after takeoff a piece of elodea was noticed on the rudder. Unfortunately there was nothing that could be done and shortly before landing at Hinchinbrook Island, the hitch hiker was gone.

 
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Curly Leaf Pond Weed Could Cause Problems on Iowa Great Lakes - The presence of curly leaf pond weed and other aquatic plants is an indicator of excellent water quality in the lakes. According to Hawkins, water quality in most of the Iowa Great Lakes is the best it has been in the past couple of decades, based on monitoring. The weed can be mechanically removed, along with other vegetation from around docks and boat hoists.


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