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Corredores de nado: protección del pez espátula mediante manejo centrado en su movimiento
Author(s) -
Pracheil Brenda M.,
Pegg Mark A.,
Powell Larkin A.,
Mestl Gerald E.
Publication year - 2012
Publication title -
fisheries
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 79
eISSN - 1548-8446
pISSN - 0363-2415
DOI - 10.1080/03632415.2012.722877
Subject(s) - fishery , fisheries management , range (aeronautics) , hatchery , stock (firearms) , geography , environmental resource management , biology , fish <actinopterygii> , engineering , economics , fishing , archaeology , aerospace engineering
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 interjursidictional movements, spatially variant survival rates, and conservation concerns associated with paddlefish necessitate more cohesive interjurisdictional management. Based on criteria used to establish flyways for migratory bird management, we offer swimways as a potential spatial configuration for biologically relevant management units.