Brazil France Germany India Indonesia Iraq South Africa
 
 
Sign up for our
free e-newsletter.





Case Studies
E-Newsletter
News
Resources
Water Management Associations
 
Lake Erie Phosphorus Pollution is Ideal for Invasive White Perch
The phosphorus-fueled harmful algal blooms around western Lake Erie are finally going away as water temperatures have fallen below the 60-degree mark in recent days. The phosphorus pollution causing the blooms, however, has also provoked changes in the fish populations of Lake Erie.

White perch, an invasive species thriving in the brackish waters of the East Coast, entered Lake Erie through the Welland Canal a few decades ago.

Their numbers have been on the rise in recent years. The white perch prosper in nutrient-rich water, unlike walleye, yellow perch and smallmouth bass. The phosphorus pollution that prompts the HABs and the noxious green slime in late summer and early fall has turned Lake Erie's Western Basin into eutrophic, or nutrient-rich waters more suited for white perch than the native favorites of fishermen.



 
Click for the full article
 


About Us Categories From The Gallery   News Updates News Updates

Our Company
Case Studies
Products
Site Map

Resources/Tools
Parts/Service
International

Stormwater Pollution is Killing Coho Before Spawning - Researchers at NOAA’s Northwest Fisheries Science Center in Seattle worked with collaborators, including the U.S. Fish and Wildlife Service, local tribes and the Wild Fish Conservancy, to survey 51 sites from 2000 to 2011 in streams all over the Puget Sound basin. They used the survey data with a new computer model to map predicted coho death rates. The results show that in an estimated 40 percent of their range in the Puget Sound Basin, 10 to 40 percent of coho salmon die before they can even spawn because of pollution.


© 2010 Copyright Aquarius Systems. All Rights Reserved. info@aquarius-systems.com   |   (262) 392-2162