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The rivers of southern England and northern France which drain into the English Channel contain several genetically unique groups of trout (Salmo trutta L.) that have suffered dramatic declines in numbers over the past 40 years. Knowledge of levels and patterns of genetic diversity is essential for effective management of these vulnerable populations. Using restriction site‐associated DNA sequencing...
Brown trout, Salmo trutta, exhibit one of the most highly variable and polytypic life‐history strategies of all salmonids. Populations may be wholly freshwater‐resident or almost exclusively migratory (anadromous), or fish of a single population may exhibit varying proportions of the two life‐history strategies. Both anadromous and freshwater‐resident trout freely interbreed to produce fertile offspring...
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