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





Case Studies
E-Newsletter
News
Resources
Water Management Associations
 
Mysterious Eagle Deaths Linked to Cyanobacterium
More than 25 years ago, biologists in Arkansas began to report dozens of bald eagles paralyzed, convulsing, or dead. Their brains were pocked with lesions never seen before in eagles.

Birds were dying at lakes and reservoirs throughout the southeast, and at every lake Susan Wilde, an aquatic ecologist at the University of Georgia, Athens and team visited, they found Hydrilla verticillate. But it was not the hydrilla itself causing the deaths, it was cyanobacteria on the leaves.

A team of researchers have identified a novel neurotoxin produced by cyanobacteria that harms not just birds, but fish, insects, and worms too. An unusual feature of the toxic molecule is the presence of bromine, which is scarce in lakes and rarely found in cyanobacteria.

Bromides are rare in freshwater, but they could be eroding from rocks, or they might originate from coal-fired power plants. Other sources could include brominated flame retardants, fracking fluids, and road salt. Wilde suspects one local source might be an herbicide, diquat dibromide, that is used to kill hydrilla.
 


 
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

Aquatic Plant Harvester to Remove Water Hyacinth - The Deltas have been dealing with an explosion in water hyacinth. Officials have been spending $5 - $6 million annually on chemical herbicide treatments and despite those efforts there is a bumper crop. The Port of Stockton is hiring an aquatic weed harvester contractor to remove the vegetation from the Stockton deep water channel.


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