COMMONWEALTH of VIRGINIAResults of Freshwater Mussel Surveys of the North Fork and South Fork Shenandoah Rivers, Virginia
Virginia Department of Conservation and Recreation Division of Natural Heritage Natural Heritage Technical Report 09-19 December 2009
RESULTS OF FRESHWATER MUSSEL SURVEYS OF THE NORTH FORK AND SOUTH FORK SHENANDOAH RIVERS, VIRGINIA
Final Report for:Virginia Department of Game and Inland FisheriesWildlife Diversity Division 1132 Thomas Jefferson Road Forest, VA 24551Prepared by:Anne C. Chazal Virginia Department of Conservation and Recreation, Division of Natural Heritage 217 Governor Street Richmond, VA 23219
21 December 2009
This report should be cited as:
Chazal, A. C. 2009. Results of Freshwater Mussel Surveys of the North Fork and South Fork Shenandoah Rivers, Virginia. Natural Heritage Technical Report 09-19. Virginia Department of Conservation and Recreation, Division of Natural Heritage, Richmond, VA. 26 pp plus appendices.
TABLE OF CONTENTS
Introduction Overview ............................................................................................................1
Survey Area ...........................................................................................................................2
North Fork Shenandoah River ...............................................................................................2
South Fork Shenandoah River ..............................................................................................2
Mussel Fauna of the Shenandoah River Drainage................................................................3
Table 1. Freshwater mussel museum records from the Shenandoah River drainage ...........4
Alasmidonta undulata ............................................................................................................7
Alasmidonta varicosa.............................................................................................................8
Elliptio complanata.................................................................................................................8
Elliptio fisheriana ...................................................................................................................9
Lampsilis cariosa/Lampsilis ovata .......................................................................................10
Lasmigona subviridis............................................................................................................11
Strophitus undulatus ............................................................................................................12
Methods................................................................................................................................12
Results .................................................................................................................................13
Table 2. Summary of mussel surveys conducted in 2008 by DCR-DNH ............................ 14
Discussion ...........................................................................................................................15
NFSR freshwater mussel observations ...............................................................................15
SFSR freshwater mussel observations................................................................................15
NFSR and SFSR habitat conditions and threats .................................................................16
General Recommendations ................................................................................................18
Summary .............................................................................................................................18 Acknowledgments................................................................................................................19
Literature Cited ....................................................................................................................20
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