Counts of Gill Rakers and Pyloric Caeca in Pink Salmon
Counts of gill rakers and pyloric caeca on pink salmon (Oncorhynchus gorbuscha) from different rivers in British Columbia overlap in range to such an extent that it would be impossible with any degree of accuracy to assign isolated individuals from an ocean population to a distinct "breeding gr...
| Published in: | Journal of the Fisheries Research Board of Canada |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Canadian Science Publishing
1945
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/f42-046 http://www.nrcresearchpress.com/doi/pdf/10.1139/f42-046 |
| Summary: | Counts of gill rakers and pyloric caeca on pink salmon (Oncorhynchus gorbuscha) from different rivers in British Columbia overlap in range to such an extent that it would be impossible with any degree of accuracy to assign isolated individuals from an ocean population to a distinct "breeding group" on the basis of these characters. While the comparison of the averages of each character demonstrates significant differences between separate rivers in the same year in some cases, in others no such difference is noticeable. The averages for the characters do not consistently show differences between populations of two succeeding years which are known to be distinct, e.g. those of 1940 and 1941. |
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