Baleen whale prey consumption based on high-resolution foraging measurements
Baleen whales influence their ecosystems through immense prey consumption and nutrient recycling 1–3 . It is difficult to accurately gauge the magnitude of their current or historic ecosystem role without measuring feeding rates and prey consumed. To date, prey consumption of the largest species has...
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ftsydanskunivpub:oai:sdu.dk:publications/bdb6c4fc-601d-4022-9ff8-835d8e1076d6 2024-06-23T07:46:02+00:00 Baleen whale prey consumption based on high-resolution foraging measurements Savoca, Matthew S. Czapanskiy, Max F. Kahane-Rapport, Shirel R. Gough, William T. Fahlbusch, James A. Bierlich, K. C. Segre, Paolo S. Di Clemente, Jacopo Penry, Gwenith S. Wiley, David N. Calambokidis, John Nowacek, Douglas P. Johnston, David W. Pyenson, Nicholas D. Friedlaender, Ari S. Hazen, Elliott L. Goldbogen, Jeremy A. 2021-11-04 https://portal.findresearcher.sdu.dk/da/publications/bdb6c4fc-601d-4022-9ff8-835d8e1076d6 https://doi.org/10.1038/s41586-021-03991-5 eng eng https://portal.findresearcher.sdu.dk/da/publications/bdb6c4fc-601d-4022-9ff8-835d8e1076d6 info:eu-repo/semantics/closedAccess Savoca , M S , Czapanskiy , M F , Kahane-Rapport , S R , Gough , W T , Fahlbusch , J A , Bierlich , K C , Segre , P S , Di Clemente , J , Penry , G S , Wiley , D N , Calambokidis , J , Nowacek , D P , Johnston , D W , Pyenson , N D , Friedlaender , A S , Hazen , E L & Goldbogen , J A 2021 , ' Baleen whale prey consumption based on high-resolution foraging measurements ' , Nature , vol. 599 , pp. 85-90 . https://doi.org/10.1038/s41586-021-03991-5 article 2021 ftsydanskunivpub https://doi.org/10.1038/s41586-021-03991-5 2024-06-11T14:36:24Z Baleen whales influence their ecosystems through immense prey consumption and nutrient recycling 1–3 . It is difficult to accurately gauge the magnitude of their current or historic ecosystem role without measuring feeding rates and prey consumed. To date, prey consumption of the largest species has been estimated using metabolic models 3–9 based on extrapolations that lack empirical validation. Here, we used tags deployed on seven baleen whale (Mysticeti) species (n = 321 tag deployments) in conjunction with acoustic measurements of prey density to calculate prey consumption at daily to annual scales from the Atlantic, Pacific, and Southern Oceans. Our results suggest that previous studies 3–9 have underestimated baleen whale prey consumption by threefold or more in some ecosystems. In the Southern Ocean alone, we calculate that pre-whaling populations of mysticetes annually consumed 430 million tonnes of Antarctic krill (Euphausia superba), twice the current estimated total biomass of E. superba 10 , and more than twice the global catch of marine fisheries today 11 . Larger whale populations may have supported higher productivity in large marine regions through enhanced nutrient recycling: our findings suggest mysticetes recycled 1.2 × 10 4 tonnes iron yr −1 in the Southern Ocean before whaling compared to 1.2 × 10 3 tonnes iron yr −1 recycled by whales today. The recovery of baleen whales and their nutrient recycling services 2,3,7 could augment productivity and restore ecosystem function lost during 20th century whaling 12,13 . Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill baleen whale baleen whales Euphausia superba Southern Ocean University of Southern Denmark Research Portal Antarctic Pacific Southern Ocean Nature 599 7883 85 90 |
institution |
Open Polar |
collection |
University of Southern Denmark Research Portal |
op_collection_id |
ftsydanskunivpub |
language |
English |
description |
Baleen whales influence their ecosystems through immense prey consumption and nutrient recycling 1–3 . It is difficult to accurately gauge the magnitude of their current or historic ecosystem role without measuring feeding rates and prey consumed. To date, prey consumption of the largest species has been estimated using metabolic models 3–9 based on extrapolations that lack empirical validation. Here, we used tags deployed on seven baleen whale (Mysticeti) species (n = 321 tag deployments) in conjunction with acoustic measurements of prey density to calculate prey consumption at daily to annual scales from the Atlantic, Pacific, and Southern Oceans. Our results suggest that previous studies 3–9 have underestimated baleen whale prey consumption by threefold or more in some ecosystems. In the Southern Ocean alone, we calculate that pre-whaling populations of mysticetes annually consumed 430 million tonnes of Antarctic krill (Euphausia superba), twice the current estimated total biomass of E. superba 10 , and more than twice the global catch of marine fisheries today 11 . Larger whale populations may have supported higher productivity in large marine regions through enhanced nutrient recycling: our findings suggest mysticetes recycled 1.2 × 10 4 tonnes iron yr −1 in the Southern Ocean before whaling compared to 1.2 × 10 3 tonnes iron yr −1 recycled by whales today. The recovery of baleen whales and their nutrient recycling services 2,3,7 could augment productivity and restore ecosystem function lost during 20th century whaling 12,13 . |
format |
Article in Journal/Newspaper |
author |
Savoca, Matthew S. Czapanskiy, Max F. Kahane-Rapport, Shirel R. Gough, William T. Fahlbusch, James A. Bierlich, K. C. Segre, Paolo S. Di Clemente, Jacopo Penry, Gwenith S. Wiley, David N. Calambokidis, John Nowacek, Douglas P. Johnston, David W. Pyenson, Nicholas D. Friedlaender, Ari S. Hazen, Elliott L. Goldbogen, Jeremy A. |
spellingShingle |
Savoca, Matthew S. Czapanskiy, Max F. Kahane-Rapport, Shirel R. Gough, William T. Fahlbusch, James A. Bierlich, K. C. Segre, Paolo S. Di Clemente, Jacopo Penry, Gwenith S. Wiley, David N. Calambokidis, John Nowacek, Douglas P. Johnston, David W. Pyenson, Nicholas D. Friedlaender, Ari S. Hazen, Elliott L. Goldbogen, Jeremy A. Baleen whale prey consumption based on high-resolution foraging measurements |
author_facet |
Savoca, Matthew S. Czapanskiy, Max F. Kahane-Rapport, Shirel R. Gough, William T. Fahlbusch, James A. Bierlich, K. C. Segre, Paolo S. Di Clemente, Jacopo Penry, Gwenith S. Wiley, David N. Calambokidis, John Nowacek, Douglas P. Johnston, David W. Pyenson, Nicholas D. Friedlaender, Ari S. Hazen, Elliott L. Goldbogen, Jeremy A. |
author_sort |
Savoca, Matthew S. |
title |
Baleen whale prey consumption based on high-resolution foraging measurements |
title_short |
Baleen whale prey consumption based on high-resolution foraging measurements |
title_full |
Baleen whale prey consumption based on high-resolution foraging measurements |
title_fullStr |
Baleen whale prey consumption based on high-resolution foraging measurements |
title_full_unstemmed |
Baleen whale prey consumption based on high-resolution foraging measurements |
title_sort |
baleen whale prey consumption based on high-resolution foraging measurements |
publishDate |
2021 |
url |
https://portal.findresearcher.sdu.dk/da/publications/bdb6c4fc-601d-4022-9ff8-835d8e1076d6 https://doi.org/10.1038/s41586-021-03991-5 |
geographic |
Antarctic Pacific Southern Ocean |
geographic_facet |
Antarctic Pacific Southern Ocean |
genre |
Antarc* Antarctic Antarctic Krill baleen whale baleen whales Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill baleen whale baleen whales Euphausia superba Southern Ocean |
op_source |
Savoca , M S , Czapanskiy , M F , Kahane-Rapport , S R , Gough , W T , Fahlbusch , J A , Bierlich , K C , Segre , P S , Di Clemente , J , Penry , G S , Wiley , D N , Calambokidis , J , Nowacek , D P , Johnston , D W , Pyenson , N D , Friedlaender , A S , Hazen , E L & Goldbogen , J A 2021 , ' Baleen whale prey consumption based on high-resolution foraging measurements ' , Nature , vol. 599 , pp. 85-90 . https://doi.org/10.1038/s41586-021-03991-5 |
op_relation |
https://portal.findresearcher.sdu.dk/da/publications/bdb6c4fc-601d-4022-9ff8-835d8e1076d6 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1038/s41586-021-03991-5 |
container_title |
Nature |
container_volume |
599 |
container_issue |
7883 |
container_start_page |
85 |
op_container_end_page |
90 |
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1802643610643988480 |