Genetic mixed-stock analysis of Atlantic sturgeon Acipenser oxyrinchus oxyrinchus in a heavily exploited marine habitat indicates the need for routine genetic monitoring

Authors

  • K. J. Dunton,

    Corresponding author
    1. School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, U.S.A.
      Tel.: +1 631 632 3137; email: kdunton@notes.cc.sunysb.edu
    Search for more papers by this author
  • D. Chapman,

    1. School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, U.S.A.
    2. The Pritzker Laboratory for Molecular Systematics and Evolution, The Field Museum, 1400 S. Lake Shore Drive, Chicago, IL 60605, U.S.A.
    Search for more papers by this author
  • A. Jordaan,

    1. School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, U.S.A.
    Search for more papers by this author
  • K. Feldheim,

    1. Institute for Ocean Conservation Science, Stony Brook University, Stony Brook, NY 11794-5000, U.S.A.
    Search for more papers by this author
  • S. J. O'Leary,

    1. The Pritzker Laboratory for Molecular Systematics and Evolution, The Field Museum, 1400 S. Lake Shore Drive, Chicago, IL 60605, U.S.A.
    Search for more papers by this author
  • K. A. McKown,

    1. New York State Department of Environmental Conservation Division of Fish, Wildlife and Marine Resources, Bureau of Marine Resources, 205 North Belle Mead Road, Suite 1, East Setauket, NY 11733, U.S.A.
    Search for more papers by this author
  • M. G. Frisk

    1. School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, U.S.A.
    Search for more papers by this author

Tel.: +1 631 632 3137; email: kdunton@notes.cc.sunysb.edu

Abstract

Although a previous genetic mixed-stock analysis (gMSA) conducted in the early 1990s showed that marine-captured New York Bight Atlantic sturgeon Acipenser oxyrinchus oxyrinchus almost exclusively originated from the Hudson River, fish from southern U.S. rivers were well represented within this contemporary sample (n = 364 fish), at least during the autumn. Widely distributed spawning stocks are therefore exposed to heavy fishing activity and habitat degradation in this relatively small area, illustrating the need for spatial management across multiple management jurisdictions and routine gMSA to account for temporal change.

Ancillary