A Conservation Plan for Native Fishes of the Lower Colorado River

Autor:	Thomas E. Dowling, James E. Deacon, Philip W. Hedrick, William J. Matthews, Paul C. Marsh, W. L. Minckley, Gordon Mueller
Rok vydání:	2003
Předmět:	Panmixia Habitat biology Ecology Fauna Xyrauchen texanus Endangered species Conservation Plan Introduced species Gila robusta General Agricultural and Biological Sciences biology.organism_classification
Zdroj:	BioScience. 53:219
ISSN:	0006-3568
DOI:	10.1641/0006-3568(2003)053[0219:acpfnf]2.0.co;2
Popis:	The native fish fauna of the lower Colorado River, in the western United States, includes four “big-river” fishes that are federally listed as endangered. Existing recovery implementation plans are inadequate for these critically imperiled species. We describe a realistic, proactive management program founded on demographic and genetic principles and crafted to avoid potential conflicts with nonnative sport fisheries. In this program, native species would breed and their progeny grow in isolated, protected, off-channel habitats in the absence of nonnative fishes. Panmictic adult populations would reside in the main channel and connected waters, exchanging reproductive adults and repatriated subadults with populations occupying isolated habitats. Implementation of the plan would greatly enhance recovery potential of the four listed fishes.
Databáze:	OpenAIRE
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