Habitat use and growth of yellow-stage European eel in coastal and freshwater ecosystems in Norway
Many anguillid eel species display facultative catadromy. Some eel spend their entire life cycle in marine coastal areas, but the geographical extent of this, especially at the extremes of their distributional ranges, is unknown.We analysed otolith Sr:Ca and Ba:Ca from yellow-stage European eel (Ang...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | https://hdl.handle.net/11250/3056265 https://doi.org/10.1139/cjfas-2022-0033 |
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ftimr:oai:imr.brage.unit.no:11250/3056265 2023-05-15T13:26:55+02:00 Habitat use and growth of yellow-stage European eel in coastal and freshwater ecosystems in Norway Rohtla, Mehis Daverat, Françoise Arts, Michael T. Browman, Howard Parzanini, Camilla Skiftesvik, Anne Berit Thorstad, Eva Bonsak van der Meeren, Terje Vøllestad, Leif Asbjørn Durif, Caroline 2022 application/pdf https://hdl.handle.net/11250/3056265 https://doi.org/10.1139/cjfas-2022-0033 eng eng Norges forskningsråd: 280658 Havforskningsinstituttet: Coastal Ecosystems Program Canadian Journal of Fisheries and Aquatic Sciences. 2022, . urn:issn:0706-652X https://hdl.handle.net/11250/3056265 https://doi.org/10.1139/cjfas-2022-0033 cristin:2069354 13 Canadian Journal of Fisheries and Aquatic Sciences Peer reviewed Journal article 2022 ftimr https://doi.org/10.1139/cjfas-2022-0033 2023-03-08T23:44:40Z Many anguillid eel species display facultative catadromy. Some eel spend their entire life cycle in marine coastal areas, but the geographical extent of this, especially at the extremes of their distributional ranges, is unknown.We analysed otolith Sr:Ca and Ba:Ca from yellow-stage European eel (Anguilla anguilla) sampled along the coast of Norway and in several freshwater lakes (58◦N–63◦N), to infer their initial settlement and later life movement patterns with regards to habitat salinity. Most eel (80%) sampled in marine habitats (n = 371) had settled and remained in marine water, but 20% had moved between marine and freshwater habitats and were hence classified as inter-habitat shifters. Among freshwater sampled eel (n = 99), 80% had settled and remained in fresh water, but 20% were classified as inter-habitat shifters. The average growth rates for marine water residents, inter-habitat shifters, and freshwater residents were 35, 27, and 17 mm·year–1, respectively. Northern European otolith microchemistry, anguillids, Anguilla anguilla, salinity, age, growth rate publishedVersion publishedVersion Article in Journal/Newspaper Anguilla anguilla European eel Institute for Marine Research: Brage IMR Norway Canadian Journal of Fisheries and Aquatic Sciences 80 1 14 26 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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language |
English |
description |
Many anguillid eel species display facultative catadromy. Some eel spend their entire life cycle in marine coastal areas, but the geographical extent of this, especially at the extremes of their distributional ranges, is unknown.We analysed otolith Sr:Ca and Ba:Ca from yellow-stage European eel (Anguilla anguilla) sampled along the coast of Norway and in several freshwater lakes (58◦N–63◦N), to infer their initial settlement and later life movement patterns with regards to habitat salinity. Most eel (80%) sampled in marine habitats (n = 371) had settled and remained in marine water, but 20% had moved between marine and freshwater habitats and were hence classified as inter-habitat shifters. Among freshwater sampled eel (n = 99), 80% had settled and remained in fresh water, but 20% were classified as inter-habitat shifters. The average growth rates for marine water residents, inter-habitat shifters, and freshwater residents were 35, 27, and 17 mm·year–1, respectively. Northern European otolith microchemistry, anguillids, Anguilla anguilla, salinity, age, growth rate publishedVersion publishedVersion |
format |
Article in Journal/Newspaper |
author |
Rohtla, Mehis Daverat, Françoise Arts, Michael T. Browman, Howard Parzanini, Camilla Skiftesvik, Anne Berit Thorstad, Eva Bonsak van der Meeren, Terje Vøllestad, Leif Asbjørn Durif, Caroline |
spellingShingle |
Rohtla, Mehis Daverat, Françoise Arts, Michael T. Browman, Howard Parzanini, Camilla Skiftesvik, Anne Berit Thorstad, Eva Bonsak van der Meeren, Terje Vøllestad, Leif Asbjørn Durif, Caroline Habitat use and growth of yellow-stage European eel in coastal and freshwater ecosystems in Norway |
author_facet |
Rohtla, Mehis Daverat, Françoise Arts, Michael T. Browman, Howard Parzanini, Camilla Skiftesvik, Anne Berit Thorstad, Eva Bonsak van der Meeren, Terje Vøllestad, Leif Asbjørn Durif, Caroline |
author_sort |
Rohtla, Mehis |
title |
Habitat use and growth of yellow-stage European eel in coastal and freshwater ecosystems in Norway |
title_short |
Habitat use and growth of yellow-stage European eel in coastal and freshwater ecosystems in Norway |
title_full |
Habitat use and growth of yellow-stage European eel in coastal and freshwater ecosystems in Norway |
title_fullStr |
Habitat use and growth of yellow-stage European eel in coastal and freshwater ecosystems in Norway |
title_full_unstemmed |
Habitat use and growth of yellow-stage European eel in coastal and freshwater ecosystems in Norway |
title_sort |
habitat use and growth of yellow-stage european eel in coastal and freshwater ecosystems in norway |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3056265 https://doi.org/10.1139/cjfas-2022-0033 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_source |
13 Canadian Journal of Fisheries and Aquatic Sciences |
op_relation |
Norges forskningsråd: 280658 Havforskningsinstituttet: Coastal Ecosystems Program Canadian Journal of Fisheries and Aquatic Sciences. 2022, . urn:issn:0706-652X https://hdl.handle.net/11250/3056265 https://doi.org/10.1139/cjfas-2022-0033 cristin:2069354 |
op_doi |
https://doi.org/10.1139/cjfas-2022-0033 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
80 |
container_issue |
1 |
container_start_page |
14 |
op_container_end_page |
26 |
_version_ |
1766395265394147328 |