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Attempts to mitigate lack of formal interjurisdictional paddle-fish management have been made in the United States through the Mississippi River Interstate Cooperative Resource Associa-tion (MICRA). We used 1988–2009 data from the MICRA pad-dlefish (Polyodon spathula) stock assessment database—a da-tabase 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 biologi-cally relevant spatial scales. Paddlefish frequently moved be-tween political jurisdictions with differing conservation strat-egies and harvest regulations and showed differences i