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Monitoring

The early detection mussel monitoring program in Idaho waters uses several methods, including plankton tow sample collection for veliger detection and static substrate and shoreline monitoring for adult detection. Sampling is focused on high-use and high-risk waters that have been identified by the Idaho Waterbody Ranking Assessment.

Substrate Sample - Kansas Department of Wildlife, Parks and TourismSampling for settled adult mussels involves the use of static substrate samplers and shoreline surveys at high-use waterbodies throughout the state. Samplers are deployed on or adjacent to high watercraft use areas and they are inspected several times per season.

The substrate sampling effort has been led by the Idaho Department of Environmental Quality. Other partners, including state and federal agencies, lake associations, tribes and canal companies, also monitor substrate samplers throughout the season.

------------------------------------------------------------------Plankton Tow
Plankton tow samples for veliger detection are collected following the US Bureau of Reclamation (BOR) protocols. Sampling is conducted on waterbodies throughout the state, with the highest sampling frequency focused on high-use, “Critical” ranked waterbodies.

Waterbody ranking also determines sampling frequency, varying from one sampling event per season in lower risk waters to sampling at three week intervals at multiple locations in “Critical” waterbodies.

In the 2013 season, more than 500 plankton tow samples from 70 waterbodies were collected and analyzed for mussel veligers in Idaho. To date no evidence of mussels has been found in idaho.

Map showing Veliger Survey locations in Idaho (2011 - 2013)