Use of Virginia's tributaries of the Potomac River by anadromous fishes : final report for phase four of an analysis of the impediments to spawning migrations of anadromous fish in Virginia rivers.
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1988-10-01
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Abstract:The use of Virginia's tributaries of the lower Potomac River (downstream of Great Falls)
by striped bass, American shad, hickory shad, and river herring (a collective term for alewife
and blueback herring) was determined by reviewing literature, consulting knowledgeable
agency personnel, and interviewing local fishermen and landowners. Barriers to upstream
movement were identified for each tributary, and all highway crossings were evaluated for
their impact on spawning migrations.
A total of 148 tributaries in the lower Potomac River downstream of Great Falls were
identified from topographic maps as potential spawning streams. Of these, 40 are confirmed
as spawning streams, 83 are deemed probable spawning streams, and 25 are unlikely
candidates. Identified barriers to upstream movement on these 148 streams are as follows:
10 are open their entire length, 116 have natural impediments, 6 have highway crossing
barriers, and 16 have other anthropogenic structures. Descriptions of the six highway
crossings are presented in the text.
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