Assessing the impact of hydropower and fisheries on downstream migrating silver eel, Anguilla anguilla, by telemetry in the River Meuse
European eel Anguilla anguilla is in strong decline. We assessed the relative impact of fisheries and hydropower during the downstream migration of silver eel in the River Meuse in the Netherlands using radio-telemetry. For this, 16 fixed detection stations (Nedap Trail-System®) were used, each cove...
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ftunivwagenin:oai:library.wur.nl:wurpubs/355238 2024-02-04T09:52:54+01:00 Assessing the impact of hydropower and fisheries on downstream migrating silver eel, Anguilla anguilla, by telemetry in the River Meuse Winter, H.V. Jansen, H.M. Bruijs, M.C.M. 2006 application/pdf https://research.wur.nl/en/publications/assessing-the-impact-of-hydropower-and-fisheries-on-downstream-mi https://doi.org/10.1111/j.1600-0633.2006.00154.x en eng https://edepot.wur.nl/37777 https://research.wur.nl/en/publications/assessing-the-impact-of-hydropower-and-fisheries-on-downstream-mi doi:10.1111/j.1600-0633.2006.00154.x info:eu-repo/semantics/restrictedAccess Wageningen University & Research Ecology of Freshwater Fish 15 (2006) 2 ISSN: 0906-6691 Fisheries Hydropower Individual behaviour Migration Population effects Radio telemetry Silver eel info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2006 ftunivwagenin https://doi.org/10.1111/j.1600-0633.2006.00154.x 2024-01-10T23:25:28Z European eel Anguilla anguilla is in strong decline. We assessed the relative impact of fisheries and hydropower during the downstream migration of silver eel in the River Meuse in the Netherlands using radio-telemetry. For this, 16 fixed detection stations (Nedap Trail-System®) were used, each covering the entire river width, including all outlets to sea, and two covering the entrances of the two hydropower stations present. In September 2002, 150 silver eels were surgically implanted with Nedap-transponders and released at the catch site. Of these, 121 started to migrate downstream of which 37% successfully reached the North Sea. Hydropower mortality was at least 9% and assessed to be 16¿26%. Fisheries mortality was at least 16% (reported recaptures) and estimated to be 22¿26%. A clear difference was found in passage behaviour at hydropower stations, where 40% showed recurrence, in contrast to the river stations where this hardly occurred, indicating a hesitation to pass the turbines. Also a difference was found in diurnal pattern; 63% of the eels that passed through the turbines did so during the first 5 h of the night, whereas for the stations on free-flowing sections this was only 35% Article in Journal/Newspaper Anguilla anguilla Wageningen UR (University & Research Centre): Digital Library Ecology of Freshwater Fish 15 2 221 228 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Fisheries Hydropower Individual behaviour Migration Population effects Radio telemetry Silver eel |
spellingShingle |
Fisheries Hydropower Individual behaviour Migration Population effects Radio telemetry Silver eel Winter, H.V. Jansen, H.M. Bruijs, M.C.M. Assessing the impact of hydropower and fisheries on downstream migrating silver eel, Anguilla anguilla, by telemetry in the River Meuse |
topic_facet |
Fisheries Hydropower Individual behaviour Migration Population effects Radio telemetry Silver eel |
description |
European eel Anguilla anguilla is in strong decline. We assessed the relative impact of fisheries and hydropower during the downstream migration of silver eel in the River Meuse in the Netherlands using radio-telemetry. For this, 16 fixed detection stations (Nedap Trail-System®) were used, each covering the entire river width, including all outlets to sea, and two covering the entrances of the two hydropower stations present. In September 2002, 150 silver eels were surgically implanted with Nedap-transponders and released at the catch site. Of these, 121 started to migrate downstream of which 37% successfully reached the North Sea. Hydropower mortality was at least 9% and assessed to be 16¿26%. Fisheries mortality was at least 16% (reported recaptures) and estimated to be 22¿26%. A clear difference was found in passage behaviour at hydropower stations, where 40% showed recurrence, in contrast to the river stations where this hardly occurred, indicating a hesitation to pass the turbines. Also a difference was found in diurnal pattern; 63% of the eels that passed through the turbines did so during the first 5 h of the night, whereas for the stations on free-flowing sections this was only 35% |
format |
Article in Journal/Newspaper |
author |
Winter, H.V. Jansen, H.M. Bruijs, M.C.M. |
author_facet |
Winter, H.V. Jansen, H.M. Bruijs, M.C.M. |
author_sort |
Winter, H.V. |
title |
Assessing the impact of hydropower and fisheries on downstream migrating silver eel, Anguilla anguilla, by telemetry in the River Meuse |
title_short |
Assessing the impact of hydropower and fisheries on downstream migrating silver eel, Anguilla anguilla, by telemetry in the River Meuse |
title_full |
Assessing the impact of hydropower and fisheries on downstream migrating silver eel, Anguilla anguilla, by telemetry in the River Meuse |
title_fullStr |
Assessing the impact of hydropower and fisheries on downstream migrating silver eel, Anguilla anguilla, by telemetry in the River Meuse |
title_full_unstemmed |
Assessing the impact of hydropower and fisheries on downstream migrating silver eel, Anguilla anguilla, by telemetry in the River Meuse |
title_sort |
assessing the impact of hydropower and fisheries on downstream migrating silver eel, anguilla anguilla, by telemetry in the river meuse |
publishDate |
2006 |
url |
https://research.wur.nl/en/publications/assessing-the-impact-of-hydropower-and-fisheries-on-downstream-mi https://doi.org/10.1111/j.1600-0633.2006.00154.x |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Ecology of Freshwater Fish 15 (2006) 2 ISSN: 0906-6691 |
op_relation |
https://edepot.wur.nl/37777 https://research.wur.nl/en/publications/assessing-the-impact-of-hydropower-and-fisheries-on-downstream-mi doi:10.1111/j.1600-0633.2006.00154.x |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1111/j.1600-0633.2006.00154.x |
container_title |
Ecology of Freshwater Fish |
container_volume |
15 |
container_issue |
2 |
container_start_page |
221 |
op_container_end_page |
228 |
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1789962189318127616 |