Quagga Mussel
Quagga Mussel
Zebra Mussel
Zebra Mussel
Invasive Mussel Monitoring and Early Detection

100th Meridian Initiative

The 100th Meridian Initiative through the state partners, the U.S. Fish & Wildlife Service and the Western Regional Advisory Panel to the Aquatic Nuisance Species Task Force has developed capacity in western states to prevent and respond to zebra/quagga mussel spread since the mid-90s. Representatives from federal, state, and provincial agencies, tribes, universities and stakeholder groups regularly participate on teams to prioritize work assignments and coordinate the collection and organization of data into useful formats for regional and national management actions (recorded at www.100thMeridian.org).

Pilot Laboratory Testing Program


The overall objective of the pilot laboratory testing program is to improve the reliability of laboratory results. Currently it is not possible to purchase reference Dreissena larvae samples, so laboratories that are in the process of developing and optimizing existing and new techniques are unable to independently assess their results. A primary purpose of this pilot testing program is to prepare and make such reference materials widely available. More information of the Pilot Laboratory Testing Program

Stop Aquatic Hitchhikers!

2012 Dreissena
Mussel Early Detection Monitoring Methods and Quality Assurance Workshops

These workshops were convened at Texas Christian University in Fort Worth, Texas in February 2012. The final version of the workshop report is now available:
A Comprehensive Report on the Workshops "Dreissena Early Detection Best Practices" and "Dreissena Early Detection Laboratory Standards"

Early Detection Report
Reliability of Early Detection of Dreissena spp. Larvae by Cross Polarized Light Microscopy, Image Flow Cytometry, and Polymerase Chain Reaction Assays Results of a Community Double-Blind Round Robin Study (Round Robin Study Phase II). Marc E. Frischer, Sandra A. Nierzwicki-Bauer, and Kevin L. Kelly

NewA manuscript authored by Marc Frischer, Kevin Kelly, and Sandra Nierzwicki-Bauer containing the full details of this work is now available in the journal of Lake and Reservoir Management, 2012, Volume 28, Issue 4, Pages 265-276.

Questions? Please contact david_britton@fws.gov

River Basin Teams

100th Meridian Initiative partners are organized into river basin teams, basic partnership units for collaborative responses to invasive mussels in western North America. Team communications and monitoring information will be shared through two dedicated websites, www.musselmonitoring.com and www.100thmeridian.org. These websites and the Teams will provide the primary network to implement the Early Detection and Monitoring Plan.

Reporting Results

Participating microscopy and molecular labs will receive samples from various western locations but will report results through designated state single points-of-contact for appropriate agency distribution and reporting throughout the 100th MI network. Basin Teams are responsible for maintaining up-to-date state contact lists and providing these points-of-contact to participating labs.

Draft 2009 Interagency Dreissena Monitoring Plan for Western Waters
(6/26/2009: 422K Microsoft Word Document)

Please see our monitoring page for Summarized 2009 Monitoring Activities