Blue crab paper - Assessing effectiveness of the blue crab spawning stock sanctuary in Chesapeake Bay using tag-return methodology Debra M Lambert

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Assessing effectiveness of the blue crab spawning stock sanctuary in Chesapeake Bay using tag-return methodology. Debra M. Lambert, Romuald N. Lipicius, John M. Hoenig January 25, 2008 Title: The title is accurate and inviting and is a good description of the goal of the study. Introduction: This research was done to empirically assess the effectiveness of the sanctuary in the Chesapeake Bay in protecting spawning female blue crabs from fishing mortality. It addresses the idea that marine reserves protect the spawning biomass and provide a source of larvae that can recruit to areas outside the reserve. It also addresses the assumption that a reserve area will increase recruitment in surrounding areas. Other studies have shown that this is not always the case. The researchers hypothesized that tag recapture and location of release are dependent on each other, that crabs released within the sanctuary are less likely to be recaptured, and that crabs released outside the sanctuary are more likely to be recaptured. Also, they hypothesized that crabs released close to the boarders of the sanctuary will be more likely to join the group on the other side of the border and experience either an increased or decreased risk of recapture. Methods: The researchers tagged female blue crabs that already underwent their final molt, that were caught by various other research and monitoring agencies in the Bay area. They tagged a consistent proportion from each location both inside and outside the sanctuary. The crabs were then released close
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This note was uploaded on 04/13/2008 for the course MSCI 101 taught by Professor Wolfe during the Spring '08 term at Coastal Carolina University.

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Blue crab paper - Assessing effectiveness of the blue crab spawning stock sanctuary in Chesapeake Bay using tag-return methodology Debra M Lambert

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