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Salmon PVA: a population viability analysis model for Atlantic salmon in the Maine Distinct Population Segment
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2004
[PDF-947.36 KB]
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Description:"A population viability analysis (PVA) model has been developed for Atlantic salmon (Salmo salar) in Maine. This model incorporates uncertainty in juvenile and adult survival rates, direct and indirect linkages among populations in different rivers, and accounts for a number of sources of potential human removals or stocking in a flexible, modular Fortran program named SalmonPVA. The structure of the model is based on a state-space approach with a detailed life history cycle. Multiple cohorts in multiple rivers progress through their life history based on stage-specific survival rates and fecundity, with limits imposed by riverine habitat capacity. The model projects the populations forward in time (usually 100 years) numerous times, with stochastic variables selected based on a Monte Carlo approach to calculate the probability of extinction. This model is being developed with input from scientists and policy makers from NOAA Fisheries, US Fish and Wildlife Service, Atlantic Salmon Commission, and the University of Maine. Results from this model will form the basis for informing the selection of delisting criteria in the Recovery Plan for the Maine Distinct Population Segment, which was listed as endangered in 1999"--Executive summary.
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Content Notes:by Christopher M. Legault
"January 2004."
"Web version posted January 16, 2004."
System requirements: Adobe Acrobat Reader.
Includes bibliographical references (pages 28-32).
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Rights Information:Public Domain
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