Recent Additions:

Columbia River Basin Team

The Columbia River Basin Team is comprised of 100th Meridian Initiative partners primarily in Washington, Oregon, Montana, Idaho, Montana, Wyoming, and British Columbia.

Next Meeting

The next meeting of the 100th Meridian Initiative’s Columbia River Basin Team is scheduled for May 24-25 2016 in Spokane, WA.  If you are interested in attending the meeting please contact Susan Anderson @


Columbia River Basin Interagency Invasive Species Response Plan: Zebra Mussels and Other Dreissenid Species

The current September 2011 version of this document has been signed by the U.S. Fish and Wildlife Service; Columbia River Intertribal Fish Commission; the states of Idaho, Montana, Oregon, and Washington; and the Canadian province of British Columbia. It incorporates a number of minor updates from the prior October 2008 version. The actions described in this plan should be implemented in the event of a zebra or quagga mussel introduction. Revisions to the plan will be posted based on new information and findings from ongoing response exercises. An associated strategy to enhance implementation of this plan, and reports for past exercises, can also be found below. Please send any questions about these documents to or

Future Needs
Project Update:

Minutes from Past Meetings

Zebra Mussels

Zebra Mussel Druse

Zebra Mussels on Rock

Mussel on Monofilament

Development of this web site is supported by the U.S. Fish & Wildlife Service through a partnership with the University of Texas - Arlington and contains information and resources derived from a variety of other partners and sources. Materials on this web site are free for public use and are not intended to be used for profit. Read more...

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