Effect of increased flow on the behaviour of Atlantic salmon parr in winter
The effect of increased flow on movement and microhabitat use of Atlantic salmon Salmo salar parr in winter was investigated using radiotelemetry. To simulate hydropeaking operations, flow was increased four‐fold from 1·3 m 3 s −1 to 5·2 m 3 s −1 for 24 h periods. Flow did not affect fish habitat us...
| Published in: | Journal of Fish Biology |
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| Main Authors: | , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
2004
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1111/j.0022-1112.2004.00516.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-1112.2004.00516.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-1112.2004.00516.x |
| Summary: | The effect of increased flow on movement and microhabitat use of Atlantic salmon Salmo salar parr in winter was investigated using radiotelemetry. To simulate hydropeaking operations, flow was increased four‐fold from 1·3 m 3 s −1 to 5·2 m 3 s −1 for 24 h periods. Flow did not affect fish habitat use or displacement and had little effect on fish activity within diel periods. During high flow periods in late winter, fish reduced night‐time activity. Stranding rates during flow reduction were also very low (only one fish). |
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