Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge
Abstract Jansen, H. M., Winter, H. V., Bruijs, M. C. M., and Polman, H. J. G. 2007. Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge. – ICES Journal of Marine Science, 64: 1437–1443. The European eel (Anguilla anguilla) ha...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsm132 http://academic.oup.com/icesjms/article-pdf/64/7/1437/29152826/fsm132.pdf |
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croxfordunivpr:10.1093/icesjms/fsm132 2024-09-15T17:39:42+00:00 Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge Jansen, Henrice M. Winter, Hendrik V. Bruijs, Maarten C. M. Polman, Harry J. G. 2007 http://dx.doi.org/10.1093/icesjms/fsm132 http://academic.oup.com/icesjms/article-pdf/64/7/1437/29152826/fsm132.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 64, issue 7, page 1437-1443 ISSN 1095-9289 1054-3139 journal-article 2007 croxfordunivpr https://doi.org/10.1093/icesjms/fsm132 2024-08-05T04:32:45Z Abstract Jansen, H. M., Winter, H. V., Bruijs, M. C. M., and Polman, H. J. G. 2007. Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge. – ICES Journal of Marine Science, 64: 1437–1443. The European eel (Anguilla anguilla) has been in steep decline for several decades. Fisheries and hydropower-induced mortality presumably play an important role during the downstream migration of silver eels, and downstream-migrating silver eels must make various navigation and route-selection decisions to reach the sea. We examined the influence of river discharge on route selection of silver eels. To quantify the impact of hydropower and fisheries on silver eel mortality, radio-telemetry experiments were performed in the River Meuse in 2002 and 2004, surgically implanting 300 silver eels with Nedap-transponders. Route selection and passage behaviour near detection stations was assessed. Silver eels were distributed over the alternative migration routes in the river in proportion to the discharge until the silver eels reached the entrance to the turbines. The eels altered their behaviour when approaching the turbines of hydropower plants and showed stationary and recurrent behaviour. We discuss the consequences of this on route selection and mortality rates caused by hydropower facilities and fisheries. Article in Journal/Newspaper Anguilla anguilla Oxford University Press ICES Journal of Marine Science 64 7 1437 1443 |
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Abstract Jansen, H. M., Winter, H. V., Bruijs, M. C. M., and Polman, H. J. G. 2007. Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge. – ICES Journal of Marine Science, 64: 1437–1443. The European eel (Anguilla anguilla) has been in steep decline for several decades. Fisheries and hydropower-induced mortality presumably play an important role during the downstream migration of silver eels, and downstream-migrating silver eels must make various navigation and route-selection decisions to reach the sea. We examined the influence of river discharge on route selection of silver eels. To quantify the impact of hydropower and fisheries on silver eel mortality, radio-telemetry experiments were performed in the River Meuse in 2002 and 2004, surgically implanting 300 silver eels with Nedap-transponders. Route selection and passage behaviour near detection stations was assessed. Silver eels were distributed over the alternative migration routes in the river in proportion to the discharge until the silver eels reached the entrance to the turbines. The eels altered their behaviour when approaching the turbines of hydropower plants and showed stationary and recurrent behaviour. We discuss the consequences of this on route selection and mortality rates caused by hydropower facilities and fisheries. |
format |
Article in Journal/Newspaper |
author |
Jansen, Henrice M. Winter, Hendrik V. Bruijs, Maarten C. M. Polman, Harry J. G. |
spellingShingle |
Jansen, Henrice M. Winter, Hendrik V. Bruijs, Maarten C. M. Polman, Harry J. G. Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge |
author_facet |
Jansen, Henrice M. Winter, Hendrik V. Bruijs, Maarten C. M. Polman, Harry J. G. |
author_sort |
Jansen, Henrice M. |
title |
Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge |
title_short |
Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge |
title_full |
Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge |
title_fullStr |
Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge |
title_full_unstemmed |
Just go with the flow? Route selection and mortality during downstream migration of silver eels in relation to river discharge |
title_sort |
just go with the flow? route selection and mortality during downstream migration of silver eels in relation to river discharge |
publisher |
Oxford University Press (OUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1093/icesjms/fsm132 http://academic.oup.com/icesjms/article-pdf/64/7/1437/29152826/fsm132.pdf |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ICES Journal of Marine Science volume 64, issue 7, page 1437-1443 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsm132 |
container_title |
ICES Journal of Marine Science |
container_volume |
64 |
container_issue |
7 |
container_start_page |
1437 |
op_container_end_page |
1443 |
_version_ |
1810481878170337280 |