Lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the Southern Ocean
We investigated the relative importance of myctophid fish and Antarctic krill in the diet of adult flying seabirds of the Southern Ocean. The main prey of short‐tailed shearwaters Puffinus tenuirostris ( P. ten. ), white‐chinned petrels Procellaria aequinoctialis ( P. aeq. ), blue petrels Halobaena...
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crwiley:10.4319/lo.2007.52.6.2445 2024-06-23T07:47:53+00:00 Lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the Southern Ocean Connan, Maëlle Cherel, Yves Mayzaud, Patrick 2007 http://dx.doi.org/10.4319/lo.2007.52.6.2445 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2007.52.6.2445 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2007.52.6.2445 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 52, issue 6, page 2445-2455 ISSN 0024-3590 1939-5590 journal-article 2007 crwiley https://doi.org/10.4319/lo.2007.52.6.2445 2024-06-11T04:48:01Z We investigated the relative importance of myctophid fish and Antarctic krill in the diet of adult flying seabirds of the Southern Ocean. The main prey of short‐tailed shearwaters Puffinus tenuirostris ( P. ten. ), white‐chinned petrels Procellaria aequinoctialis ( P. aeq. ), blue petrels Halobaena caerulea ( H. cae. ), thin‐billed prions Pachyptila belcheri ( P. bel. ), and Antarctic prions Pachyptila desolata ( P. des. ) were mostly deduced from the lipid analysis of adult stomach oils. More than 97% of the 125 analyzed oils mainly consisted of wax esters (WEs) and triacylglycerols (TAGs) (>70% of total lipids). WE fatty alcohol (FAlc), WE fatty acid (FA), and TAG‐FA profiles clearly segregated P. aeq. from P. ten. , with smaller, but still significant, differences among the three other petrel species. P. aeq. and P. ten. therefore preyed on distinct prey species, whereas H. cae. , P. bel. , and P. des. had a more similar diet, but still with some prey differences. Comparisons between FAlc and FA patterns of oils with those of potential prey species showed that >93% of FAlc and FA patterns of oil WEs had a high probability of resemblance with the myctophid signatures, and similar results were obtained with the TAG fractions. Almost no stomach oil fit the lipid patterns of subantarctic and Antarctic euphausiids, including those of the WE‐rich Thysanoessa macrura and the TAG‐rich Antarctic krill Euphausia superba . This study thus demonstrates for the first time the importance of myctophids in the nutrition of adult flying seabirds breeding in subantarctic islands and foraging in Antarctic waters during the austral summer. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Pachyptila desolata Puffinus tenuirostris Southern Ocean Thysanoessa macrura Wiley Online Library Antarctic Austral Southern Ocean Limnology and Oceanography 52 6 2445 2455 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
We investigated the relative importance of myctophid fish and Antarctic krill in the diet of adult flying seabirds of the Southern Ocean. The main prey of short‐tailed shearwaters Puffinus tenuirostris ( P. ten. ), white‐chinned petrels Procellaria aequinoctialis ( P. aeq. ), blue petrels Halobaena caerulea ( H. cae. ), thin‐billed prions Pachyptila belcheri ( P. bel. ), and Antarctic prions Pachyptila desolata ( P. des. ) were mostly deduced from the lipid analysis of adult stomach oils. More than 97% of the 125 analyzed oils mainly consisted of wax esters (WEs) and triacylglycerols (TAGs) (>70% of total lipids). WE fatty alcohol (FAlc), WE fatty acid (FA), and TAG‐FA profiles clearly segregated P. aeq. from P. ten. , with smaller, but still significant, differences among the three other petrel species. P. aeq. and P. ten. therefore preyed on distinct prey species, whereas H. cae. , P. bel. , and P. des. had a more similar diet, but still with some prey differences. Comparisons between FAlc and FA patterns of oils with those of potential prey species showed that >93% of FAlc and FA patterns of oil WEs had a high probability of resemblance with the myctophid signatures, and similar results were obtained with the TAG fractions. Almost no stomach oil fit the lipid patterns of subantarctic and Antarctic euphausiids, including those of the WE‐rich Thysanoessa macrura and the TAG‐rich Antarctic krill Euphausia superba . This study thus demonstrates for the first time the importance of myctophids in the nutrition of adult flying seabirds breeding in subantarctic islands and foraging in Antarctic waters during the austral summer. |
format |
Article in Journal/Newspaper |
author |
Connan, Maëlle Cherel, Yves Mayzaud, Patrick |
spellingShingle |
Connan, Maëlle Cherel, Yves Mayzaud, Patrick Lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the Southern Ocean |
author_facet |
Connan, Maëlle Cherel, Yves Mayzaud, Patrick |
author_sort |
Connan, Maëlle |
title |
Lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the Southern Ocean |
title_short |
Lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the Southern Ocean |
title_full |
Lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the Southern Ocean |
title_fullStr |
Lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the Southern Ocean |
title_full_unstemmed |
Lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the Southern Ocean |
title_sort |
lipids from stomach oil of procellariiform seabirds document the importance of myctophid fish in the southern ocean |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.4319/lo.2007.52.6.2445 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2007.52.6.2445 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2007.52.6.2445 |
geographic |
Antarctic Austral Southern Ocean |
geographic_facet |
Antarctic Austral Southern Ocean |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Pachyptila desolata Puffinus tenuirostris Southern Ocean Thysanoessa macrura |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Pachyptila desolata Puffinus tenuirostris Southern Ocean Thysanoessa macrura |
op_source |
Limnology and Oceanography volume 52, issue 6, page 2445-2455 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2007.52.6.2445 |
container_title |
Limnology and Oceanography |
container_volume |
52 |
container_issue |
6 |
container_start_page |
2445 |
op_container_end_page |
2455 |
_version_ |
1802638115813195776 |