Conservation Genetics of Lake Superior Brook Trout: Issues, Questions, and Directions

Autor:	Martin J. Jennings, Wendylee Stott, Anne M. Cooper, Loren M. Miller, Chris C. Wilson, Silvia D'Amelio
Rok vydání:	2008
Předmět:	Conservation genetics Ecology biology Ecotype Introgression Management Monitoring Policy and Law Aquatic Science biology.organism_classification Hatchery Fishery Trout Stocking Habitat Ecology Evolution Behavior and Systematics Salvelinus
Zdroj:	North American Journal of Fisheries Management. 28:1307-1320
ISSN:	1548-8675 0275-5947
DOI:	10.1577/m05-190.1
Popis:	Parallel efforts by several genetic research groups have tackled common themes relating to management concerns about and recent rehabilitation opportunities for coaster brook trout Salvelinus fontinalis in Lake Superior. The questions that have been addressed include the evolutionary and genetic status of coaster brook trout, the degree of relatedness among coaster populations and their relationship to riverine tributary brook trout populations, and the role and effectiveness of stocking in maintaining and restoring coasters to Lake Superior. Congruent genetic results indicate that coasters are an ecotype (life history variant) rather than an evolutionarily significant unit or genetically distinct strain. Regional structure exists among brook trout stocks, coasters being produced from local populations. Introgression of hatchery genes into wild populations appears to vary regionally and may relate to local population size, habitat integrity, and anthropogenic pressures. Tracking the genetic diver...
Databáze:	OpenAIRE
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