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Full-Text Articles in Aquaculture and Fisheries
Swimways: Protecting Paddlefish Through Movement-Centered Management, Brenda M. Pracheil, Mark A. Pegg, Larkin A. Powell, Gerald Mestl
Swimways: Protecting Paddlefish Through Movement-Centered Management, Brenda M. Pracheil, Mark A. Pegg, Larkin A. Powell, Gerald Mestl
School of Natural Resources: Faculty Publications
Attempts to mitigate lack of formal interjurisdictional paddlefish management have been made in the United States through the Mississippi River Interstate Cooperative Resource Association (MICRA). We used 1988–2009 data from the MICRA paddlefish (Polyodon spathula) stock assessment database—a database containing mark–recapture and biometric information on more than 30,000 individually marked wild paddlefish and more than 2 million hatchery-origin paddlefish—to estimate survival and movement across large and potentially biologically relevant spatial scales. Paddlefish frequently moved between political jurisdictions with differing conservation strategies and harvest regulations and showed differences in survival parameter estimates throughout their range. We argue that the degree of …