What are the best upland river characteristics for glass eel restocking practice?
peer reviewed The fitness of restocked European eel (Anguilla anguilla), an endangered fish species, was studied in relation to the environmental variables of habitats in six upland rivers that are typologically different in terms of their hydromorphological and physicochemical characteristics, food...
Published in: | Science of The Total Environment |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2021
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Online Access: | https://orbi.uliege.be/handle/2268/259190 https://orbi.uliege.be/bitstream/2268/259190/1/STOTEN_NzauMatondoetal2021_eel_restocking.pdf https://doi.org/10.1016/j.scitotenv.2021.147042 |
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ftorbi:oai:orbi.ulg.ac.be:2268/259190 2024-04-21T07:45:39+00:00 What are the best upland river characteristics for glass eel restocking practice? Nzau Matondo, Billy Benitez, Jean-Philippe Dierckx, Arnaud Renardy, Séverine Rollin, Xavier Dylan, Colson Loïc, Baltus Vasthi Rose, Myrielle Romain Ovidio, Michaël FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège 2021-04 https://orbi.uliege.be/handle/2268/259190 https://orbi.uliege.be/bitstream/2268/259190/1/STOTEN_NzauMatondoetal2021_eel_restocking.pdf https://doi.org/10.1016/j.scitotenv.2021.147042 en eng Elsevier urn:issn:0048-9697 urn:issn:1879-1026 https://orbi.uliege.be/handle/2268/259190 info:hdl:2268/259190 https://orbi.uliege.be/bitstream/2268/259190/1/STOTEN_NzauMatondoetal2021_eel_restocking.pdf doi:10.1016/j.scitotenv.2021.147042 scopus-id:2-s2.0-85104625268 info:pmid:33895513 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Science of the Total Environment (2021-04) Restocking Freshwater Ecosystem Capture Marck Recapture Endangered fish Species Conservation European eel Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2021 ftorbi https://doi.org/10.1016/j.scitotenv.2021.147042 2024-03-27T14:55:17Z peer reviewed The fitness of restocked European eel (Anguilla anguilla), an endangered fish species, was studied in relation to the environmental variables of habitats in six upland rivers that are typologically different in terms of their hydromorphological and physicochemical characteristics, food resources and fish communities. These rivers received a total of 76,370 imported glass eels in 2017. During a three-year period, we monitored eels with respect to total length, annual growth rate, condition factor and density using capture-mark-recapture experiments to understand the effects of the characteristics of receiving rivers on restocking success levels. Our results showed the survival of the restocked eels in the six rivers and revealed significant differences between them in terms of total length, condition factor and density. Better performance in eel yield variableswas observed in a eutrophic alkaline river with greater roughness of riverbed substrates, dominant pool- and riffle-type flowfacies and lower brown trout density. The variables conductivity and total hardness had higher explanatory power and were strongly associated with increased eel density. This study suggests that a well-selected habitat/river in a restocking programme can be beneficial for the species and recommends restocking practice as a management tool to achieve eel conservation goals. Article in Journal/Newspaper Anguilla anguilla European eel University of Liège: ORBi (Open Repository and Bibliography) Science of The Total Environment 784 147042 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Restocking Freshwater Ecosystem Capture Marck Recapture Endangered fish Species Conservation European eel Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie |
spellingShingle |
Restocking Freshwater Ecosystem Capture Marck Recapture Endangered fish Species Conservation European eel Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie Nzau Matondo, Billy Benitez, Jean-Philippe Dierckx, Arnaud Renardy, Séverine Rollin, Xavier Dylan, Colson Loïc, Baltus Vasthi Rose, Myrielle Romain Ovidio, Michaël What are the best upland river characteristics for glass eel restocking practice? |
topic_facet |
Restocking Freshwater Ecosystem Capture Marck Recapture Endangered fish Species Conservation European eel Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie |
description |
peer reviewed The fitness of restocked European eel (Anguilla anguilla), an endangered fish species, was studied in relation to the environmental variables of habitats in six upland rivers that are typologically different in terms of their hydromorphological and physicochemical characteristics, food resources and fish communities. These rivers received a total of 76,370 imported glass eels in 2017. During a three-year period, we monitored eels with respect to total length, annual growth rate, condition factor and density using capture-mark-recapture experiments to understand the effects of the characteristics of receiving rivers on restocking success levels. Our results showed the survival of the restocked eels in the six rivers and revealed significant differences between them in terms of total length, condition factor and density. Better performance in eel yield variableswas observed in a eutrophic alkaline river with greater roughness of riverbed substrates, dominant pool- and riffle-type flowfacies and lower brown trout density. The variables conductivity and total hardness had higher explanatory power and were strongly associated with increased eel density. This study suggests that a well-selected habitat/river in a restocking programme can be beneficial for the species and recommends restocking practice as a management tool to achieve eel conservation goals. |
author2 |
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège |
format |
Article in Journal/Newspaper |
author |
Nzau Matondo, Billy Benitez, Jean-Philippe Dierckx, Arnaud Renardy, Séverine Rollin, Xavier Dylan, Colson Loïc, Baltus Vasthi Rose, Myrielle Romain Ovidio, Michaël |
author_facet |
Nzau Matondo, Billy Benitez, Jean-Philippe Dierckx, Arnaud Renardy, Séverine Rollin, Xavier Dylan, Colson Loïc, Baltus Vasthi Rose, Myrielle Romain Ovidio, Michaël |
author_sort |
Nzau Matondo, Billy |
title |
What are the best upland river characteristics for glass eel restocking practice? |
title_short |
What are the best upland river characteristics for glass eel restocking practice? |
title_full |
What are the best upland river characteristics for glass eel restocking practice? |
title_fullStr |
What are the best upland river characteristics for glass eel restocking practice? |
title_full_unstemmed |
What are the best upland river characteristics for glass eel restocking practice? |
title_sort |
what are the best upland river characteristics for glass eel restocking practice? |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://orbi.uliege.be/handle/2268/259190 https://orbi.uliege.be/bitstream/2268/259190/1/STOTEN_NzauMatondoetal2021_eel_restocking.pdf https://doi.org/10.1016/j.scitotenv.2021.147042 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_source |
Science of the Total Environment (2021-04) |
op_relation |
urn:issn:0048-9697 urn:issn:1879-1026 https://orbi.uliege.be/handle/2268/259190 info:hdl:2268/259190 https://orbi.uliege.be/bitstream/2268/259190/1/STOTEN_NzauMatondoetal2021_eel_restocking.pdf doi:10.1016/j.scitotenv.2021.147042 scopus-id:2-s2.0-85104625268 info:pmid:33895513 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2021.147042 |
container_title |
Science of The Total Environment |
container_volume |
784 |
container_start_page |
147042 |
_version_ |
1796941137854857216 |