WSAW NewsChannel 7  | Central WI, Wausau, Rhinelander  |  News, Weather, Sports

Study: Food Supplies Drop in Lakes Huron, Michigan

By: Associated Press Email
By: Associated Press Email

TRAVERSE CITY, Mich. (AP) -- A newly published scientific paper says crucial nutrients for fish and other organisms are declining in Lakes Huron and Michigan.

The study was conducted by researchers from government agencies and universities.

It says much of the drop-off results from loss of phosphorus, which feeds phytoplankton. They are the tiny plants that form crucial links in food chains.

Invasive mussels have consumed heavy loads of phosphorus since the late 1990s by filtering organic material from the water.

In some places, larger fish have caused downward pressure on food chains by gorging on prey species such as alewives and round gobies.

Study leader David Bunnell of the U.S. Geological Survey said Thursday that the biggest problem seems to be with nutrient supplies at the lower end of food chains.


Join the Conversation!

To comment, the following rules must be followed:

  • No Obscenity, Profanity, Vulgarity, Racism or Violent Descriptions
  • No Negative Community Comparisons
  • No Fighting, Name-calling, or Personal Attacks
  • Multiple Accounts are Not Allowed
  • Stay on Story Topic

Comments may be monitored for inappropriate content, but the station is under no legal obligation to do so.
If you believe a comment violates the above rules, please use the Flagging Tool to alert a Moderator.
Flagging does not guarantee removal.

Multiple violations may result in account suspension.
Decisions to suspend or unsuspend accounts are made by Station Moderators.
Questions may be sent to comments@wsaw.com.
Please provide detailed information.
All comments must adhere to the WSAW.com discussion rules.

powered by Disqus
WSAW-TV 1114 Grand Ave. Wausau, WI 54403
Gray Television, Inc. - Copyright © 2002-2014 - Designed by Gray Digital Media - Powered by Clickability 235675091