Feeding characteristics and prey profitability in five herring-feeding killer whales (Orcinus orca) in northern Norway
Funding: Tagging was conducted as part of the making of the BBC television series Blue Planet II and under permit FOTS ID10176 granted by Mattilsynet to Norwegian Orca Survey. Fieldwork was supported by grants from the Sea World and Busch Gardens Conservation fund and Sea World and Parks Entertainme...
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Online Access: | https://hdl.handle.net/10023/27318 https://doi.org/10.1111/mms.12931 |
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/27318 2024-04-28T08:32:29+00:00 Feeding characteristics and prey profitability in five herring-feeding killer whales (Orcinus orca) in northern Norway Matika, Aimee F. Jourdain, Eve Cade, David E. Karoliussen, Richard Hammond, Philip S. University of St Andrews. School of Biology University of St Andrews. Sea Mammal Research Unit University of St Andrews. Scottish Oceans Institute University of St Andrews. Centre for Research into Ecological & Environmental Modelling University of St Andrews. Marine Alliance for Science & Technology Scotland 2023-04-02 16 2090712 application/pdf https://hdl.handle.net/10023/27318 https://doi.org/10.1111/mms.12931 eng eng Marine Mammal Science 278722190 4d9568d8-aeea-423c-9651-ed2b33dc478f 85127410260 000777255100001 Matika , A F , Jourdain , E , Cade , D E , Karoliussen , R & Hammond , P S 2022 , ' Feeding characteristics and prey profitability in five herring-feeding killer whales ( Orcinus orca ) in northern Norway ' , Marine Mammal Science , vol. 38 , no. 4 , pp. 1409-1424 . https://doi.org/10.1111/mms.12931 0824-0469 RIS: urn:76BF42E6C767A623407F044F05732A1C ORCID: /0000-0002-2381-8302/work/111209990 https://hdl.handle.net/10023/27318 doi:10.1111/mms.12931 Energy budgets Energy intake Feeding behavior Metabolic rate Orcinus orca Prey requirements GC Oceanography QH301 Biology E-NDAS AC MCC GC QH301 Journal article 2023 ftstandrewserep https://doi.org/10.1111/mms.12931 2024-04-09T23:33:08Z Funding: Tagging was conducted as part of the making of the BBC television series Blue Planet II and under permit FOTS ID10176 granted by Mattilsynet to Norwegian Orca Survey. Fieldwork was supported by grants from the Sea World and Busch Gardens Conservation fund and Sea World and Parks Entertainment. This study used multisensory data tags with integrated 4K video to investigate feeding behavior and prey profitability in five adult male killer whales (Orcinus orca) at herring wintering grounds in Norway, in 2016 and 2017. Video recorded two killer whales engaged in carousel feeding, and two engaged in seiner feeding (i.e., feeding on herring discards around purse seiner vessels). The feeding behaviors identified from the video data allowed for determination of associated kinematic signatures, which were used to further identify and characterize carousel feeding and deep feeding dives over the entire logger duration. Prey consumption during on camera feeding bouts was also measured to calculate profitability of feeding bouts for the different behaviors. Average number of prey consumed per minute was 1.08±0.43 for carousel feeding and 0.43±0.07 for seiner feeding (n = 122 prey capture events). Using kinematic data, a total of 18 carousel feeding bouts and 206 deep feeding dives were identified. Whales spent at least 37%-65% of time over 24-hr feeding. Using field metabolic rate estimates from the literature and the energetic content of herring caught locally, killer whales required an estimated 285-578 herring/day to balance daily energy requirements. Peer reviewed Article in Journal/Newspaper Northern Norway Orca Orcinus orca University of St Andrews: Digital Research Repository Marine Mammal Science 38 4 1409 1424 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Energy budgets Energy intake Feeding behavior Metabolic rate Orcinus orca Prey requirements GC Oceanography QH301 Biology E-NDAS AC MCC GC QH301 |
spellingShingle |
Energy budgets Energy intake Feeding behavior Metabolic rate Orcinus orca Prey requirements GC Oceanography QH301 Biology E-NDAS AC MCC GC QH301 Matika, Aimee F. Jourdain, Eve Cade, David E. Karoliussen, Richard Hammond, Philip S. Feeding characteristics and prey profitability in five herring-feeding killer whales (Orcinus orca) in northern Norway |
topic_facet |
Energy budgets Energy intake Feeding behavior Metabolic rate Orcinus orca Prey requirements GC Oceanography QH301 Biology E-NDAS AC MCC GC QH301 |
description |
Funding: Tagging was conducted as part of the making of the BBC television series Blue Planet II and under permit FOTS ID10176 granted by Mattilsynet to Norwegian Orca Survey. Fieldwork was supported by grants from the Sea World and Busch Gardens Conservation fund and Sea World and Parks Entertainment. This study used multisensory data tags with integrated 4K video to investigate feeding behavior and prey profitability in five adult male killer whales (Orcinus orca) at herring wintering grounds in Norway, in 2016 and 2017. Video recorded two killer whales engaged in carousel feeding, and two engaged in seiner feeding (i.e., feeding on herring discards around purse seiner vessels). The feeding behaviors identified from the video data allowed for determination of associated kinematic signatures, which were used to further identify and characterize carousel feeding and deep feeding dives over the entire logger duration. Prey consumption during on camera feeding bouts was also measured to calculate profitability of feeding bouts for the different behaviors. Average number of prey consumed per minute was 1.08±0.43 for carousel feeding and 0.43±0.07 for seiner feeding (n = 122 prey capture events). Using kinematic data, a total of 18 carousel feeding bouts and 206 deep feeding dives were identified. Whales spent at least 37%-65% of time over 24-hr feeding. Using field metabolic rate estimates from the literature and the energetic content of herring caught locally, killer whales required an estimated 285-578 herring/day to balance daily energy requirements. Peer reviewed |
author2 |
University of St Andrews. School of Biology University of St Andrews. Sea Mammal Research Unit University of St Andrews. Scottish Oceans Institute University of St Andrews. Centre for Research into Ecological & Environmental Modelling University of St Andrews. Marine Alliance for Science & Technology Scotland |
format |
Article in Journal/Newspaper |
author |
Matika, Aimee F. Jourdain, Eve Cade, David E. Karoliussen, Richard Hammond, Philip S. |
author_facet |
Matika, Aimee F. Jourdain, Eve Cade, David E. Karoliussen, Richard Hammond, Philip S. |
author_sort |
Matika, Aimee F. |
title |
Feeding characteristics and prey profitability in five herring-feeding killer whales (Orcinus orca) in northern Norway |
title_short |
Feeding characteristics and prey profitability in five herring-feeding killer whales (Orcinus orca) in northern Norway |
title_full |
Feeding characteristics and prey profitability in five herring-feeding killer whales (Orcinus orca) in northern Norway |
title_fullStr |
Feeding characteristics and prey profitability in five herring-feeding killer whales (Orcinus orca) in northern Norway |
title_full_unstemmed |
Feeding characteristics and prey profitability in five herring-feeding killer whales (Orcinus orca) in northern Norway |
title_sort |
feeding characteristics and prey profitability in five herring-feeding killer whales (orcinus orca) in northern norway |
publishDate |
2023 |
url |
https://hdl.handle.net/10023/27318 https://doi.org/10.1111/mms.12931 |
genre |
Northern Norway Orca Orcinus orca |
genre_facet |
Northern Norway Orca Orcinus orca |
op_relation |
Marine Mammal Science 278722190 4d9568d8-aeea-423c-9651-ed2b33dc478f 85127410260 000777255100001 Matika , A F , Jourdain , E , Cade , D E , Karoliussen , R & Hammond , P S 2022 , ' Feeding characteristics and prey profitability in five herring-feeding killer whales ( Orcinus orca ) in northern Norway ' , Marine Mammal Science , vol. 38 , no. 4 , pp. 1409-1424 . https://doi.org/10.1111/mms.12931 0824-0469 RIS: urn:76BF42E6C767A623407F044F05732A1C ORCID: /0000-0002-2381-8302/work/111209990 https://hdl.handle.net/10023/27318 doi:10.1111/mms.12931 |
op_doi |
https://doi.org/10.1111/mms.12931 |
container_title |
Marine Mammal Science |
container_volume |
38 |
container_issue |
4 |
container_start_page |
1409 |
op_container_end_page |
1424 |
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1797589669620219904 |