Browsing Retrospective theses by Author "Stephenson, Sam A."
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Distribution of fishes in the Thunder Bay area of northwestern Ontario since deglaciation, with special reference to the darters (Genus Etheostoma) and the Sibley Peninsula
Stephenson, Sam A. (1991)The prevailing theory explaining fish distribution in the western Lake Superior basin states that recolonization was from south to north following the retreating ice margins. Postulated access to post glacial Lake Superior ...