Icelandic herring eating killer whales feed at night
International audience Herring-eating killer whales debilitate herring with underwater tail slaps and likely herd herring into tighter schools using a feeding-specific low-frequency pulsed call (‘herding’ call). Feeding on herring may be dependent upon daylight, as the whales use their white undersi...
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fttriple:oai:gotriple.eu:10670/1.n14ard 2023-05-15T16:51:03+02:00 Icelandic herring eating killer whales feed at night RICHARD, Gaétan FILATOVA, OLGA A. Samarra, Filipa I.P. FEDUTIN, IVAN D. LAMMERS, Marc Miller, Patrick J. École normale supérieure - Lyon (ENS Lyon) Sea Mammal Research Unit University of St Andrews Scotland Faculty of Biology Moscow Lomonosov Moscow State University (MSU) Scottish Oceans Institute Marine and Freshwater Research Institute 2017-01-30 https://doi.org/10.1007/s00227-016-3059-8 https://hal.archives-ouvertes.fr/hal-01535784 en eng HAL CCSD Springer Verlag hal-01535784 doi:10.1007/s00227-016-3059-8 10670/1.n14ard https://hal.archives-ouvertes.fr/hal-01535784 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology Marine Biology, Springer Verlag, 2017, 164, pp.32. ⟨10.1007/s00227-016-3059-8⟩ envir musiq Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2017 fttriple https://doi.org/10.1007/s00227-016-3059-8 2023-01-22T16:53:51Z International audience Herring-eating killer whales debilitate herring with underwater tail slaps and likely herd herring into tighter schools using a feeding-specific low-frequency pulsed call (‘herding’ call). Feeding on herring may be dependent upon daylight, as the whales use their white underside to help herd herring; however, feeding at night has not been investigated. The production of feeding-specific sounds provides an opportunity to use passive acoustic monitoring to investigate feeding behaviour at different times of day. We compared the acoustic behaviour of killer whales between day and night, using an autonomous recorder deployed in Iceland during winter. Based upon acoustic detection of underwater tail slaps used to feed upon herring we found that killer whales fed both at night and day: they spent 50% of their time at night and 73% of daytime feeding. Interestingly, there was a significant diel variation in acoustic behaviour. Herding calls were significantly associated with underwater tail slap rate and were recorded significantly more often at night, suggesting that in low-light conditions killer whales rely more on acoustics to herd herring. Communicative sounds were also related to underwater tail slap rate and produced at different rates during day and night. The capability to adapt feeding behaviour to different light conditions may be particularly relevant for predator species occurring in high latitudes during winter, when light availability is limited Article in Journal/Newspaper Iceland Unknown Marine Biology 164 2 |
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English |
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envir musiq |
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envir musiq RICHARD, Gaétan FILATOVA, OLGA A. Samarra, Filipa I.P. FEDUTIN, IVAN D. LAMMERS, Marc Miller, Patrick J. Icelandic herring eating killer whales feed at night |
topic_facet |
envir musiq |
description |
International audience Herring-eating killer whales debilitate herring with underwater tail slaps and likely herd herring into tighter schools using a feeding-specific low-frequency pulsed call (‘herding’ call). Feeding on herring may be dependent upon daylight, as the whales use their white underside to help herd herring; however, feeding at night has not been investigated. The production of feeding-specific sounds provides an opportunity to use passive acoustic monitoring to investigate feeding behaviour at different times of day. We compared the acoustic behaviour of killer whales between day and night, using an autonomous recorder deployed in Iceland during winter. Based upon acoustic detection of underwater tail slaps used to feed upon herring we found that killer whales fed both at night and day: they spent 50% of their time at night and 73% of daytime feeding. Interestingly, there was a significant diel variation in acoustic behaviour. Herding calls were significantly associated with underwater tail slap rate and were recorded significantly more often at night, suggesting that in low-light conditions killer whales rely more on acoustics to herd herring. Communicative sounds were also related to underwater tail slap rate and produced at different rates during day and night. The capability to adapt feeding behaviour to different light conditions may be particularly relevant for predator species occurring in high latitudes during winter, when light availability is limited |
author2 |
École normale supérieure - Lyon (ENS Lyon) Sea Mammal Research Unit University of St Andrews Scotland Faculty of Biology Moscow Lomonosov Moscow State University (MSU) Scottish Oceans Institute Marine and Freshwater Research Institute |
format |
Article in Journal/Newspaper |
author |
RICHARD, Gaétan FILATOVA, OLGA A. Samarra, Filipa I.P. FEDUTIN, IVAN D. LAMMERS, Marc Miller, Patrick J. |
author_facet |
RICHARD, Gaétan FILATOVA, OLGA A. Samarra, Filipa I.P. FEDUTIN, IVAN D. LAMMERS, Marc Miller, Patrick J. |
author_sort |
RICHARD, Gaétan |
title |
Icelandic herring eating killer whales feed at night |
title_short |
Icelandic herring eating killer whales feed at night |
title_full |
Icelandic herring eating killer whales feed at night |
title_fullStr |
Icelandic herring eating killer whales feed at night |
title_full_unstemmed |
Icelandic herring eating killer whales feed at night |
title_sort |
icelandic herring eating killer whales feed at night |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://doi.org/10.1007/s00227-016-3059-8 https://hal.archives-ouvertes.fr/hal-01535784 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology Marine Biology, Springer Verlag, 2017, 164, pp.32. ⟨10.1007/s00227-016-3059-8⟩ |
op_relation |
hal-01535784 doi:10.1007/s00227-016-3059-8 10670/1.n14ard https://hal.archives-ouvertes.fr/hal-01535784 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1007/s00227-016-3059-8 |
container_title |
Marine Biology |
container_volume |
164 |
container_issue |
2 |
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1766041160274411520 |