Search results for: proceedings-of-the-academy-of-natural-sciences-of-philadelphia-volume-27

Proceedings of The Academy of Natural Sciences Vol XCVIII 1946

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Proceedings of The Academy of Natural Sciences Vol 128 1976

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Proceedings of The Academy of Natural Sciences Vol XCIV 1942

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Proceedings of The Academy of Natural Sciences Vol 127 1975

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Catalogue of the Tiger Beetles of Canada and the United States

Author : Richard Freitag
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Annotation Since the 1960s, American and Canadian fisheries have been introducing salmonines such as rainbow trout and chinook and coho salmon to the Great Lakes in order to develop new recreational fisheries. In this study, Crawford (ichthyology, U. of Guelph) examines the effects of non-native fish populations on the Great Lakes ecosystem. He contends that the ongoing introduction of non-native salmonines poses an ecologically- significant risk and that the practice should be terminated. The volume is not indexed. Annotation copyrighted by Book News Inc., Portland, OR.

Journal of comparative zoology

Author : Julius Victor Carus
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Proceedings of the Academy of Natural Sciences of Philadelphia

Author : Academy of Natural Sciences of Philadelp
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Mineral Resources of Alaska

Author : Charles Butts
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Geology and Ore Deposits of the Casto Quadrangle Idaho

Author : Clyde Polhemus Ross
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Bulletin

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