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Article
Evaluating the Current Status of American Shad Stocks in Three Virginia Rivers
MARINE AND COASTAL FISHERIES
  • Robert J. Latour, Virginia Institute of Marine Science
  • Eric J. Hilton, Virginia Institute of Marine Science
  • Patrick D. Lynch, Virginia Institute of Marine Science
  • Troy D. Tuckey, Virginia Institute of Marine Science
  • Brian Watkins, Virginia Institute of Marine Science
  • John E. Olney, Virginia Institute of Marine Science
Document Type
Article
Department/Program
Virginia Institute of Marine Science
Publication Date
1-1-2012
Abstract

Directed commercial fisheries for American shad Alosa sapidissima in the primary Virginia tributaries of the Chesapeake Bay have been under moratorium since 1994. Monitoring of adult American shad within these rivers has been ongoing since 1998 through a cooperative program involving commercial fishers. The monitoring program is designed to mimic traditional commercial fishing practices so that stock status can be inferred by comparing contemporary catch-per-unit-effort levels with those derived from historic logbooks. In this paper, we present analyses of the available monitoring and historic catch rate data along with updated stock status information for American shad in the James, York, and Rappahannock rivers. Two analytical methods were used to derive annual indices of relative abundance; both methods yielded very similar patterns for each river system. Comparisons of contemporary and historic indices of relative abundance suggest that American shad in the James and York rivers continue to persist at low levels of abundance. Measures of stock abundance in the Rappahannock River have been higher than the logbook reference value for much of the monitoring period. However, current moratoria and restoration strategies, which include hatchery releases of fry, the removal of obstructions blocking spawning and nursery habitat, and reductions in bycatch from other fisheries, should continue into the foreseeable future.

DOI

10.1080/19425120.2012.675978

Keywords
  • UNDER-THE-CURVE; ALOSA-SAPIDISSIMA; JAMES RIVER; YORK RIVER; SALMON; ABUNDANCE; RECOVERY; CATCH; FISH
Disciplines
Citation Information
Robert J. Latour , Eric J. Hilton , Patrick D. Lynch , Troy D. Tuckey , Brian E. Watkins & John E. Olney (2012) Evaluating the Current Status of American Shad Stocks in Three Virginia Rivers, Marine and Coastal Fisheries, 4:1, 302-311, DOI: 10.1080/19425120.2012.675978