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DEFINITION
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A species, a fish, which undertakes spawning migration from ocean to river or vice versa. |
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Harvey B., C. Ross, D. Greer, and J. Carosfeld (1998): Action before extinction. An international conference on conservation of fish genetic diversity. Vancouver, British Columbia, Canada, 16-16/02/1998. World Fisheries Trust, Victoria, British Columbia, Canada: pages 33 and 257-259
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