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Stock composition of Atlantic coastal migratory striped bass using microsatellite DNA analysis by Eva H. Hasegawa; John Waldman; Isaac Wirgin is a Environmental Science article available to read on EtoBox.

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The Atlantic Coast Migratory Stock (ACMS) of striped bass Morone saxatilis is supported by spawning populations in Chesapeake Bay and the Hudson, Delaware, and Roanoke rivers. Spawning success and recruitment differs among these populations and temporally within them and thus their relative abundances shift over time. The ACMS is subject to harvest and other sources of mortality at many Atlantic Coast locales. Effective management of these populations would benefit from knowledge of the relative contributions of these populations to the ACMS. We used microsatellite DNA analysis to measure the extent of genetic differentiation among those populations that contribute to the ACMS and to quantify their contributions to recreational harvest in 2019 at Montauk, New York. We found genetic homogeneity between the Delaware River and Chesapeake Bay populations, but significant allelic differentiation among the Hudson River, combined Delaware River-Chesapeake Bay, and Roanoke River populations. In simulations of single mixture samples, assignment accuracies for the Chesapeake-Delaware, Hudson River, and Roanoke River collections were high at 96 % (95 % CI=0.921, 0.999), 93 % (0.863, 0.979), a

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Author

Eva H. Hasegawa; John Waldman; Isaac Wirgin

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)