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Figure 6. Collection of glochidia from a gravid female Higgins’ eye pearlymussel at the Genoa National Fish Hatchery, Wisconsin. Glochidia are collected by injecting water into the gills with a syringe. Glochidia (middle left) are flushed into a collecting dish, tested for viability with salt, and a measured quantity placed in a bucket containing host fish. Contents of the bucket are mixed for a period of time. The gills of an individual host fish is examined under a microscope to estimate the number of attached glochidia. When a suitable number of glochidia are attached, host fish are placed into a concrete holding tank. (photos courtesy of U.S. Fish and Wildlife Service)
Figure 6. Collection of glochidia from a gravid female Higgins’ eye pearlymussel at the Genoa National Fish Hatchery, Wisconsin. Glochidia are collected by injecting water into the gills with a syringe. Glochidia (middle left) are flushed into a collecting dish, tested for viability with salt, and a measured quantity placed in a bucket containing host fish. Contents of the bucket are mixed for a period of time. The gills of an individual host fish is examined under a microscope to estimate the number of attached glochidia. When a suitable number of glochidia are attached, host fish are placed into a concrete holding tank. (photos courtesy of 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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