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Development of techniques to propagate freshwater mussels utilizing existing fish hatcheries

Dates

Start Date
2001-05-15
End Date
2004-10-31

Citation

Layzer, J. B., T. R. Brady, D. L. Ragland and J. M. Wisniewski. 2007. Development of techniques to propagate freshwater mussels utilizing fish hatcheries. Final report submitted to U.S. Geological Survey.

Summary

One of the most diverse freshwater mussel assemblages in the world once occurred in the Cumberland and Tennessee Rivers. Several of these species are now extinct; others linger on as relic, nonreproducing populations, and populations of the remaining species have also declined. Although many factors contributed to the decline of mussels, habitat loss from impoundments and poor water quality in tailwaters have been major causes. Recently, the Tennessee Valley Authority (TVA) initiated a major program to improve water quality in the tailwaters by maintaining minimum flows and by oxygenating discharged water. This program has resulted in significant improvements in water quality. These improvements have resulted in expansion of fish populations [...]

Contacts

Principal Investigator :
James B Layzer
Co-Investigator :
Dick Biggins
(other) :
Tennessee Cooperative Fishery Research Unit

Attached Files

Purpose

The purpose of the SSP/QR study is to assess survival of translocated mussels in the French Broad and Holston Rivers, refine methods for culturing juvenile mussels in hatchery raceways, and evaluate the growth and survival of raceway cultured mussels after stocking.

Map

Spatial Services

ScienceBase WMS

Communities

  • SSP/QR FWSR4
  • USGS/FWS Science Support Partnership Program

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