Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania
New data are reported from analyses of stomach contents from 114 long-finned pilot whales mass-stranded at four locations around Tasmania, Australia from 1992-2006. Identifiable prey remains were recovered from 84 (74%) individuals, with 30 (26%) individuals (17 females and 13 males) having empty st...
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ftjamescook:oai:researchonline.jcu.edu.au:57022 2024-02-11T10:08:51+01:00 Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania Beasley, Isabel Cherel, Yves Robinson, Sue Betty, Emma Hagihara, Rie Gales, Rosemary 2019 application/pdf https://researchonline.jcu.edu.au/57022/1/57022_Beasley_et_al_2019.pdf unknown Public Library of Science https://doi.org/10.1371/journal.pone.0206747 https://researchonline.jcu.edu.au/57022/ https://researchonline.jcu.edu.au/57022/1/57022_Beasley_et_al_2019.pdf Beasley, Isabel, Cherel, Yves, Robinson, Sue, Betty, Emma, Hagihara, Rie, and Gales, Rosemary (2019) Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania. PLoS One, 14 (1). e0206747. open Article PeerReviewed 2019 ftjamescook https://doi.org/10.1371/journal.pone.0206747 2024-01-22T23:43:20Z New data are reported from analyses of stomach contents from 114 long-finned pilot whales mass-stranded at four locations around Tasmania, Australia from 1992-2006. Identifiable prey remains were recovered from 84 (74%) individuals, with 30 (26%) individuals (17 females and 13 males) having empty stomachs. Prey remains comprised 966 identifiable lower beaks and 1244 upper beaks, belonging to 17 families (26 species) of cephalopods. Ommastrephidae spp. were the most important cephalopod prey accounting for 16.9% by number and 45.6% by reconstructed mass. Lycoteuthis lorigera was the next most important, followed by Ancistrocheirus lesueurii. Multivariate statistics identified significant differences in diet among the four stranding locations. Long-finned pilot whales foraging off Southern Australia appear to be targeting a diverse assemblage of prey (>= 10 species dominated by cephalopods). This is compared to other similar studies from New Zealand and some locations in the Northern Hemisphere, where the diet has been reported to be primarily restricted to <= 3 species dominated by cephalopods. This study emphasises the importance of cephalopods as primary prey for Southern long-finned pilot whales and other marine vertebrates, and has increased our understanding of long-finned pilot whale diet in Southern Ocean waters. Article in Journal/Newspaper Southern Ocean James Cook University, Australia: ResearchOnline@JCU New Zealand Southern Ocean PLOS ONE 14 1 e0206747 |
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James Cook University, Australia: ResearchOnline@JCU |
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ftjamescook |
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description |
New data are reported from analyses of stomach contents from 114 long-finned pilot whales mass-stranded at four locations around Tasmania, Australia from 1992-2006. Identifiable prey remains were recovered from 84 (74%) individuals, with 30 (26%) individuals (17 females and 13 males) having empty stomachs. Prey remains comprised 966 identifiable lower beaks and 1244 upper beaks, belonging to 17 families (26 species) of cephalopods. Ommastrephidae spp. were the most important cephalopod prey accounting for 16.9% by number and 45.6% by reconstructed mass. Lycoteuthis lorigera was the next most important, followed by Ancistrocheirus lesueurii. Multivariate statistics identified significant differences in diet among the four stranding locations. Long-finned pilot whales foraging off Southern Australia appear to be targeting a diverse assemblage of prey (>= 10 species dominated by cephalopods). This is compared to other similar studies from New Zealand and some locations in the Northern Hemisphere, where the diet has been reported to be primarily restricted to <= 3 species dominated by cephalopods. This study emphasises the importance of cephalopods as primary prey for Southern long-finned pilot whales and other marine vertebrates, and has increased our understanding of long-finned pilot whale diet in Southern Ocean waters. |
format |
Article in Journal/Newspaper |
author |
Beasley, Isabel Cherel, Yves Robinson, Sue Betty, Emma Hagihara, Rie Gales, Rosemary |
spellingShingle |
Beasley, Isabel Cherel, Yves Robinson, Sue Betty, Emma Hagihara, Rie Gales, Rosemary Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania |
author_facet |
Beasley, Isabel Cherel, Yves Robinson, Sue Betty, Emma Hagihara, Rie Gales, Rosemary |
author_sort |
Beasley, Isabel |
title |
Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania |
title_short |
Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania |
title_full |
Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania |
title_fullStr |
Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania |
title_full_unstemmed |
Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania |
title_sort |
stomach contents of long-finned pilot whales, globicephala melas mass-stranded in tasmania |
publisher |
Public Library of Science |
publishDate |
2019 |
url |
https://researchonline.jcu.edu.au/57022/1/57022_Beasley_et_al_2019.pdf |
geographic |
New Zealand Southern Ocean |
geographic_facet |
New Zealand Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://doi.org/10.1371/journal.pone.0206747 https://researchonline.jcu.edu.au/57022/ https://researchonline.jcu.edu.au/57022/1/57022_Beasley_et_al_2019.pdf Beasley, Isabel, Cherel, Yves, Robinson, Sue, Betty, Emma, Hagihara, Rie, and Gales, Rosemary (2019) Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania. PLoS One, 14 (1). e0206747. |
op_rights |
open |
op_doi |
https://doi.org/10.1371/journal.pone.0206747 |
container_title |
PLOS ONE |
container_volume |
14 |
container_issue |
1 |
container_start_page |
e0206747 |
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1790608475188887552 |