Environmentally Induced Precocious Sexual Development in the Male Pink Salmon ( Oncorhynchus gorbuscha )
Nine males within a group of approximately 200 pink salmon (Oncorhynchus gorbuscha) reared in heated sea water became sexually mature in October of the year of hatching. These mature males (average weight = 119.44 g; average length = 19.8 cm) were larger than the immature males (average weight = 92....
| Published in: | Journal of the Fisheries Research Board of Canada |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Canadian Science Publishing
1976
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/f76-307 http://www.nrcresearchpress.com/doi/pdf/10.1139/f76-307 |
| Summary: | Nine males within a group of approximately 200 pink salmon (Oncorhynchus gorbuscha) reared in heated sea water became sexually mature in October of the year of hatching. These mature males (average weight = 119.44 g; average length = 19.8 cm) were larger than the immature males (average weight = 92.22 g; average length = 18.9 cm but not significantly so. This is the first record of precocious development in pink salmon other than as a result of the use of exogenous gonadotropin. |
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