Stock-Recruitment Relationship for Atlantic Salmon ( Salmo salar ) in Newfoundland Rivers
A stock-recruitment relationship was developed for Atlantic salmon (Salmo salar) in Western Arm Brook, a small Newfoundland river. Supportive evidence was also found on Indian and Little Codroy, two other Newfoundland rivers. On Western Arm Brook, year-class strength of smolts was correlated (P &...
| Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Canadian Science Publishing
1982
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/f82-201 http://www.nrcresearchpress.com/doi/pdf/10.1139/f82-201 |
| Summary: | A stock-recruitment relationship was developed for Atlantic salmon (Salmo salar) in Western Arm Brook, a small Newfoundland river. Supportive evidence was also found on Indian and Little Codroy, two other Newfoundland rivers. On Western Arm Brook, year-class strength of smolts was correlated (P < 0.01) with egg deposition. On Little Codroy River, smolt year-class strength was correlated (P < 0.01) with potential egg deposition of adults counted as kelt. On Indian River egg to fry survival was correlated (P < 0.01) with winter temperature and discharge. On the basis of these findings, the current recommended egg deposition of 2.4 eggs∙m −2 of parr-rearing habitat was considered inadequate for Newfoundland rivers.Key words: stock-recruitment, Atlantic salmon |
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