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





Case Studies
E-Newsletter
News
Resources
Water Management Associations
 
Agricultural Runoff Fueling Aquatic Overgrowth
Over the past several years, the backwaters of the upper Mississippi River have seen an increase in duckweed and algal blooms, growing into thick, green mats on the surface of the water. The free-floating flora is a nuisance for anglers, boaters and swimmers alike, but the overgrowth is problematic for the aquatic ecosystem as well.

Layers of scum can block out light, preventing photosynthesis in other species growing below the surface. Decomposing plants use up the water’s dissolved oxygen, choking out fish and forcing them into the main channel.

Efforts to reduce excess nutrients — particularly phosphorous — through adaptive land management are underway in Wisconsin, but more land use improvements are needed for the river to return to healthy levels.

 
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

Common Aquatic Bacteria Responsible for Fish Kill - Test results from fish sampling suggest the recent Spofford Lake fish kill resulted from the presence of a common aquatic bacteria combined with a time of year when fish were stressed from spawning activity and war water temperatures. Test results showed that no virus was present in the fish tested and that the bacteria found was Aeromonas Hydrophila. According to Fish Health Center Staff, this bacteria only becomes lethal to fish when there is another stressor to the fish. In some cases, the bacteria can infect a single fish and then multiply rapidly, causing a substantial fish kill.


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