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Figure 12. Monitoring cages in the Upper Mississippi and St. Croix Rivers. Cages are brought to the surface and placed in the boat or on shore. Water is used to wash contents; benthic sampling trays are used to screen sediment and small mussels. Larger mussels and sediment can be washed using the cage as a screen. (photos courtesy of the Minnesota Department of Natural Resources and U.S. Fish and Wildlife Service)
Figure 12. Monitoring cages in the Upper Mississippi and St. Croix Rivers. Cages are brought to the surface and placed in the boat or on shore. Water is used to wash contents; benthic sampling trays are used to screen sediment and small mussels. Larger mussels and sediment can be washed using the cage as a screen. (photos courtesy of the Minnesota Department of Natural Resources and U.S. Fish and Wildlife Service)
Saving the Higgins' Eye Pearlymussel (Lampsilis higginisii) from Extinction:
2002 Status Report on the Accomplishments of the Mussel Coordination Team

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Last updated on May 3, 2005
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