Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration
Temperature and depth logging tags were implanted into adult eels released on Atlantic west coasts of France and Ireland to study their oceanic migration behavior. For three of the tags, 25 to 256 days after release there was a dramatic rise in temperature from 10. °C to 36. °C and the dive profile...
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ftsydanskunivpub:oai:sdu.dk:publications/99f708a0-19b1-450e-8f89-ca6c5ff1bb16 2024-05-19T07:28:33+00:00 Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration Wahlberg, Magnus Westerberg, Håkan Aarestrup, Kim Feunteun, Eric Gargan, Paddy Righton, David 2014 https://portal.findresearcher.sdu.dk/da/publications/99f708a0-19b1-450e-8f89-ca6c5ff1bb16 https://doi.org/10.1016/j.dsr.2014.01.003 eng eng https://portal.findresearcher.sdu.dk/da/publications/99f708a0-19b1-450e-8f89-ca6c5ff1bb16 info:eu-repo/semantics/restrictedAccess Wahlberg , M , Westerberg , H , Aarestrup , K , Feunteun , E , Gargan , P & Righton , D 2014 , ' Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration ' , Deep Sea Research Part I: Oceanographic Research Papers , vol. 86 , pp. 32-38 . https://doi.org/10.1016/j.dsr.2014.01.003 Archival tag Diving behavior Eel Predation Toothed whale predator article 2014 ftsydanskunivpub https://doi.org/10.1016/j.dsr.2014.01.003 2024-04-24T00:23:44Z Temperature and depth logging tags were implanted into adult eels released on Atlantic west coasts of France and Ireland to study their oceanic migration behavior. For three of the tags, 25 to 256 days after release there was a dramatic rise in temperature from 10. °C to 36. °C and the dive profile changed from depths of 300-1000. m to repeated ascents to the surface. This indicated that the eels carrying the tags had been eaten by a mammalian predator. Two of the tags had sufficient sampling rate to resolve the dives in detail. They recorded a total of 91 dives to maximum depths of 250-860. m lasting 11-12. min and with surface intervals of 5-7. min. More than two thirds of the dives included a rapid descent from approximately 500. m to 600-700. m. From this we infer that the predator was most likely a deep-diving toothed whale. The dives logged while the tags were inside the predator revealed that the temperature usually decreased during dives, and increased again during surface periods. The temperature drops during dives were probably caused by the ingestion of prey or water. These observations provide insights into the behavior of toothed whales foraging in the mesopelagic zone. Article in Journal/Newspaper Anguilla anguilla toothed whale toothed whales University of Southern Denmark Research Portal Deep Sea Research Part I: Oceanographic Research Papers 86 32 38 |
institution |
Open Polar |
collection |
University of Southern Denmark Research Portal |
op_collection_id |
ftsydanskunivpub |
language |
English |
topic |
Archival tag Diving behavior Eel Predation Toothed whale predator |
spellingShingle |
Archival tag Diving behavior Eel Predation Toothed whale predator Wahlberg, Magnus Westerberg, Håkan Aarestrup, Kim Feunteun, Eric Gargan, Paddy Righton, David Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration |
topic_facet |
Archival tag Diving behavior Eel Predation Toothed whale predator |
description |
Temperature and depth logging tags were implanted into adult eels released on Atlantic west coasts of France and Ireland to study their oceanic migration behavior. For three of the tags, 25 to 256 days after release there was a dramatic rise in temperature from 10. °C to 36. °C and the dive profile changed from depths of 300-1000. m to repeated ascents to the surface. This indicated that the eels carrying the tags had been eaten by a mammalian predator. Two of the tags had sufficient sampling rate to resolve the dives in detail. They recorded a total of 91 dives to maximum depths of 250-860. m lasting 11-12. min and with surface intervals of 5-7. min. More than two thirds of the dives included a rapid descent from approximately 500. m to 600-700. m. From this we infer that the predator was most likely a deep-diving toothed whale. The dives logged while the tags were inside the predator revealed that the temperature usually decreased during dives, and increased again during surface periods. The temperature drops during dives were probably caused by the ingestion of prey or water. These observations provide insights into the behavior of toothed whales foraging in the mesopelagic zone. |
format |
Article in Journal/Newspaper |
author |
Wahlberg, Magnus Westerberg, Håkan Aarestrup, Kim Feunteun, Eric Gargan, Paddy Righton, David |
author_facet |
Wahlberg, Magnus Westerberg, Håkan Aarestrup, Kim Feunteun, Eric Gargan, Paddy Righton, David |
author_sort |
Wahlberg, Magnus |
title |
Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration |
title_short |
Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration |
title_full |
Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration |
title_fullStr |
Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration |
title_full_unstemmed |
Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration |
title_sort |
evidence of marine mammal predation of the european eel (anguilla anguilla l.) on its marine migration |
publishDate |
2014 |
url |
https://portal.findresearcher.sdu.dk/da/publications/99f708a0-19b1-450e-8f89-ca6c5ff1bb16 https://doi.org/10.1016/j.dsr.2014.01.003 |
genre |
Anguilla anguilla toothed whale toothed whales |
genre_facet |
Anguilla anguilla toothed whale toothed whales |
op_source |
Wahlberg , M , Westerberg , H , Aarestrup , K , Feunteun , E , Gargan , P & Righton , D 2014 , ' Evidence of marine mammal predation of the European eel (Anguilla anguilla L.) on its marine migration ' , Deep Sea Research Part I: Oceanographic Research Papers , vol. 86 , pp. 32-38 . https://doi.org/10.1016/j.dsr.2014.01.003 |
op_relation |
https://portal.findresearcher.sdu.dk/da/publications/99f708a0-19b1-450e-8f89-ca6c5ff1bb16 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.dsr.2014.01.003 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
86 |
container_start_page |
32 |
op_container_end_page |
38 |
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1799474380212797440 |