Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Artículo Open Access |
| Published: |
Wiley
2024
|
| Subjects: | |
| Online Access: | https://onlinelibrary.wiley.com/doi/10.1111/eff.12821 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867006684693528576 |
|---|---|
| author | Jessica R. Rodger Phoebe Kaiser‐Wilks Samantha V. Beck Jamie C. H. Ribbens Angus J. Lothian Colin E. Adams |
| author_facet | Jessica R. Rodger Phoebe Kaiser‐Wilks Samantha V. Beck Jamie C. H. Ribbens Angus J. Lothian Colin E. Adams Jessica R. Rodger Phoebe Kaiser‐Wilks Samantha V. Beck Jamie C. H. Ribbens Angus J. Lothian Colin E. Adams |
| collection | Wiley Open Access |
| contents | Downstream Migration Success of Atlantic Salmon Smolts in a River Catchment Highly Fragmented by Hydroelectric Impoundments Jessica R. Rodger Phoebe Kaiser‐Wilks Samantha V. Beck Jamie C. H. Ribbens Angus J. Lothian Colin E. Adams Ecology of Freshwater Fish ABSTRACTRiverine habitat fragmentation by barriers, including impoundments, is common and their effects on obligate aquatic organisms are manifold. Organisms, such as Atlantic salmon (Salmo salar), that make extensive river migrations are particularly vulnerable to the effects of impoundments. In this study, we use acoustic telemetry to examine the migratory behaviour of Atlantic salmon, as they migrate to sea for the first time as juvenile ‘smolts’, in a river with a series of dams that form a complex hydropower scheme. We demonstrate that overall migration success in the River Dee catchment and particularly through standing waters was remarkably high. We speculate that high migration success in standing waters could be due to relative current speeds providing good quality directional cues to migrants. Migration success past the two dams in this study, was relatively high, although the number of unsuccessful passage attempts before a successful passage was also very high. The vast majority of smolts passed the dams when the turbines were operational. At one dam, smolts did not use an available fish pass but migrated through the generating turbines. These findings provide several routes through which generation could be managed to enhance the success of downstream smolt migration in rivers where there are similar patterns of hydrogeneration in place. 10.1111/eff.12821 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1111/eff.12821 |
| format | Artículo Open Access |
| id | wiley_oa_10_1111_eff_12821 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Downstream Migration Success of Atlantic Salmon Smolts in a River Catchment Highly Fragmented by Hydroelectric Impoundments Jessica R. Rodger Phoebe Kaiser‐Wilks Samantha V. Beck Jamie C. H. Ribbens Angus J. Lothian Colin E. Adams Ecology of Freshwater Fish Downstream Migration Success of Atlantic Salmon Smolts in a River Catchment Highly Fragmented by Hydroelectric Impoundments Jessica R. Rodger Phoebe Kaiser‐Wilks Samantha V. Beck Jamie C. H. Ribbens Angus J. Lothian Colin E. Adams Ecology of Freshwater Fish ABSTRACTRiverine habitat fragmentation by barriers, including impoundments, is common and their effects on obligate aquatic organisms are manifold. Organisms, such as Atlantic salmon (Salmo salar), that make extensive river migrations are particularly vulnerable to the effects of impoundments. In this study, we use acoustic telemetry to examine the migratory behaviour of Atlantic salmon, as they migrate to sea for the first time as juvenile ‘smolts’, in a river with a series of dams that form a complex hydropower scheme. We demonstrate that overall migration success in the River Dee catchment and particularly through standing waters was remarkably high. We speculate that high migration success in standing waters could be due to relative current speeds providing good quality directional cues to migrants. Migration success past the two dams in this study, was relatively high, although the number of unsuccessful passage attempts before a successful passage was also very high. The vast majority of smolts passed the dams when the turbines were operational. At one dam, smolts did not use an available fish pass but migrated through the generating turbines. These findings provide several routes through which generation could be managed to enhance the success of downstream smolt migration in rivers where there are similar patterns of hydrogeneration in place. 10.1111/eff.12821 http://creativecommons.org/licenses/by/4.0/ |
| title | Downstream Migration Success of Atlantic Salmon Smolts in a River Catchment Highly Fragmented by Hydroelectric Impoundments |
| topic | Ecology of Freshwater Fish |
| url | https://onlinelibrary.wiley.com/doi/10.1111/eff.12821 |