Abundance of Yellowtail Flounder in the Access Area of Closed Area II on Georges Bank in June 2008 from a Large-Scale Petersen Tagging Study

Cadrin, Steven X.; Melgey, Jessica; Stokesbury, Kevin D.E.

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Abundance of Yellowtail Flounder in the Access Area of Closed Area II on Georges Bank in June 2008 from a Large-Scale Petersen Tagging Study

2014
By Cadrin, Steven X. ; Melgey, Jessica ; Stokesbury, Kevin D.E.

[PDF-1.19 MB]

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Personal Author:

Cadrin, Steven X. ; Melgey, Jessica ; Stokesbury, Kevin D.E.

Cadrin, Steven X. ; Melgey, Jessica ; Stokesbury, Kevin D.E. Less -
Corporate Authors:

Canada. Department of Fisheries and Oceans ; United States. National Marine Fisheries Service ; Northeast Fisheries Science Center (U.S.)

Canada. Department of Fisheries and Oceans ; United States. National Marine Fisheries Service ; Northeast Fisheries Science Center (U.S.) Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NEFSC (Northeast Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; NEFSC (Northeast Fisheries Science Center) Less -
Description:

Abundance of Yellowtail Flounder in the access area of Closed Area II on Georges Bank was estimated using a large-scale Petersen tagging experiment. In June 2008, a ten-day mark-recapture experiment was conducted in which nearly 73,000 Yellowtail Flounder were tagged, with nearly 44,000 yellowtail collected in the second sample, including 177 recaptured with tags. Abundance in the study area was estimated to be approximately 18 million for ages 2+ using a variety of conventional and modified models. The Petersen estimates of abundance are significantly greater than contemporary estimates of age-2+ abundance of yellowtail in the entire Georges Bank stock area from the 2013 stock assessment. Sensitivity analyses indicate that the discrepancy in abundance estimates from the tagging study and the stock assessment are robust to a wide range of assumptions. Therefore, the tagging estimates suggest that the stock assessment is substantially underestimating abundance. A mark-recapture experiment using conventional external tags has never been attempted at this large a scale. The ability of this cooperative study to estimate abundance in an area closed to fishing demonstrates the capability of the method for evaluating marine protected areas and complementing conventional stock assessments.
Keywords:

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Evaluation Fish Stock Assessment Fish Tagging Limanda Ferruginea TRAC Transboundary Resources Assessment Committee Working Paper 2014/24
Document Type:

Working Paper
Place as Subject:

Georges Bank ; North Atlantic Ocean

Georges Bank ; North Atlantic Ocean Less -
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Public Domain
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Submitted
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urn:sha256:000c7dd72ffde19e8ed4bc97a3520f2b9c9979e07b33f1c08b4e170c70b75108
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https://repository.library.noaa.gov/view/noaa/26473/noaa_26473_DS1.pdf
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Abundance of Yellowtail Flounder in the Access Area of Closed Area II on Georges Bank in June 2008 from a Large-Scale Petersen Tagging Study

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