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Extended fresh water rearing of pink salmon at a washington usa hatchery

Progressive Fish Culturist 40(1): 9-10
Extended fresh water rearing of pink salmon at a washington usa hatchery
Many fish culturists believe that after incubation and 45 days of freshwater rearing, smolts of pink salmon (Oncorhynchus gorbuscha) must then be further reared at salinities of 15-25 .permill. until they are stocked. The rearing of 50,000 pink salmon of the 1971 brood in freshwater was monitored for 135 days. At release the average weight of the fish was 12.4 g (81 fish/kg) and the average fork length, 122 mm; average condition factor was 1.1. A substantial number of these salmon returned to the release site in 1973.

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Accession: 005432592

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