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Document Type

Book Chapter

Department/Program

Virginia Institute of Marine Science

Editors

James B. Webb

Publication Date

1970

Book Title

Proceedings Of The Twenty-Third Annual Conference Southeastern Association Of Game And Fish Commissioners October 19-22, 1969

Publisher

Southeastern Association Of Game And Fish Commissioners

City

Columbia, S.C.

Abstract

This report concerns the distribution of juvenile alewife (Alosa pseudoharengus) and blueback herring (Alosa aestivalis) in the tidal portion of the Potomac River as determined in 1968. The river courses for 100 nautical miles from the Lower Falls at Washington, D. C. to empty into the Chesapeake Bay some 60 miles from the Virginia capes. It is second only to the Susquehanna River in freshwater input to the bay, contributing 18% of the total. The salinity at the mouth is approximately 18 ppt., and salt water intrudes 70 to 75 miles. The upper tidal portion is heavily polluted by domestic wastes from the Washington Metropolitan area. Although much of the sewage is treated, over enrichment causes massive algal blooms.

Distribution Of Juvenile River Herring In The Potomac River

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