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The zoogeographic problem involved in the presence of the glacial relict Pontoporeia affinis (Crustacea, Amphipoda) in Lake Washington, USA
Segerstråle, S.G. (1971). The zoogeographic problem involved in the presence of the glacial relict Pontoporeia affinis (Crustacea, Amphipoda) in Lake Washington, USA. J. Fish. Res. Bd. Can. 28(9): 1331-1334
In: Journal of the Fisheries Research Board of Canada. The Fisheries Research Board of Canada: Toronto. ISSN 0015-296x, more
Peer reviewed article  

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Keyword
    Marine

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  • Segerstråle, S.G.

Abstract
    The discovery in 1939 of the glacial relict amphipod P. affinis Lindstrom in Lake Washington raised the question of the provenience of this population of the sp, quite isolated as it is from the main area of relict localities of continental North America, situated east of the Continental Divide. Recent geological work and studies on the dispersal routes of freshwater fish in glacial times suggest that the P. affinis of Lake Washington has been able to cross the divide from proglacial waters east of it.

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