Lipid composition of stomach oil in a procellariiform seabird Puffinus tenuirostris: implications for food web studies
International audience Some procellariiform seabirds use a dual strategy for provisioning their chicks by alternating between short and long foraging trips (LT). Trophic relationships of adult birds are unknown when they feed for themselves during LT because digestion processes preclude direct prey...
Published in: | Marine Ecology Progress Series |
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Online Access: | https://hal.science/hal-03506658 https://hal.science/hal-03506658/document https://hal.science/hal-03506658/file/m290p277-1.pdf https://doi.org/10.3354/meps290277 |
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ftunivnantes:oai:HAL:hal-03506658v1 2023-05-15T13:46:38+02:00 Lipid composition of stomach oil in a procellariiform seabird Puffinus tenuirostris: implications for food web studies Connan, M Mayzaud, P Boutoute, M Weimerskirch, H Cherel, Y Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Développement et Pathologie du Tissu Musculaire (DPTM) Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Nantes 2005 https://hal.science/hal-03506658 https://hal.science/hal-03506658/document https://hal.science/hal-03506658/file/m290p277-1.pdf https://doi.org/10.3354/meps290277 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps290277 hal-03506658 https://hal.science/hal-03506658 https://hal.science/hal-03506658/document https://hal.science/hal-03506658/file/m290p277-1.pdf doi:10.3354/meps290277 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-03506658 Marine Ecology Progress Series, 2005, 290, pp.277-290. ⟨10.3354/meps290277⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2005 ftunivnantes https://doi.org/10.3354/meps290277 2023-02-08T03:26:43Z International audience Some procellariiform seabirds use a dual strategy for provisioning their chicks by alternating between short and long foraging trips (LT). Trophic relationships of adult birds are unknown when they feed for themselves during LT because digestion processes preclude direct prey determination. Since stomach contents collected after LT contain oil of dietary origin, we tested the use of oil lipids as prey trophic markers using the Tasmanian short-tailed shearwater Puffinus tenuirostris as a model seabird. The intra-specific variability of stomach oils was investigated through lipid class composition, and their fatty acid and fatty alcohol profiles. Oils mainly consisted of wax esters (WE) and triacylglycerols (TAG) (49 to 86 and 7 to 41%, respectively). Major fatty acids of TAG were in a decreasing order 18:1n-9, 16:0, 16:1n-7, 14:0, 20:5n-3 and 22:6n-3. The WE-fatty acid profiles were dominated by 18:1n-9 and 16:1n-7 while fatty alcohol profiles were dominated by 16:0. Fatty alcohol and fatty acid patterns were tested as possible descriptors of ingested prey (derived from literature data.) through multivariate discriminant analyses. Comparisons of the WE fatty alcohol patterns showed a close association with the alcohol structure of 3 myctophid fish species namely Krefftichthys anderssoni, Gymnoscopelus braueri and Electrona antarctica; these results were corroborated by WE fatty acid analysis. Comparison of TAG fatty acid patterns showed the highest similarity between oils and the digestive gland of the myctophid-eater squid Moroteuthis ingens in association with the myctophid Electrona carlsbergi. Hence, biochemical analysis of both WE and TAG strongly suggested that adult short-tailed shearwaters mainly prey upon Antarctic/sub-Antarctic myctophids when they feed for themselves, thus emphasizing the role of these oceanic mesopelagic fish in the marine ecosystem of the Southern Ocean. Article in Journal/Newspaper Antarc* Antarctic Antarctica Puffinus tenuirostris Southern Ocean Université de Nantes: HAL-UNIV-NANTES Antarctic Southern Ocean Marine Ecology Progress Series 290 277 290 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Connan, M Mayzaud, P Boutoute, M Weimerskirch, H Cherel, Y Lipid composition of stomach oil in a procellariiform seabird Puffinus tenuirostris: implications for food web studies |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Some procellariiform seabirds use a dual strategy for provisioning their chicks by alternating between short and long foraging trips (LT). Trophic relationships of adult birds are unknown when they feed for themselves during LT because digestion processes preclude direct prey determination. Since stomach contents collected after LT contain oil of dietary origin, we tested the use of oil lipids as prey trophic markers using the Tasmanian short-tailed shearwater Puffinus tenuirostris as a model seabird. The intra-specific variability of stomach oils was investigated through lipid class composition, and their fatty acid and fatty alcohol profiles. Oils mainly consisted of wax esters (WE) and triacylglycerols (TAG) (49 to 86 and 7 to 41%, respectively). Major fatty acids of TAG were in a decreasing order 18:1n-9, 16:0, 16:1n-7, 14:0, 20:5n-3 and 22:6n-3. The WE-fatty acid profiles were dominated by 18:1n-9 and 16:1n-7 while fatty alcohol profiles were dominated by 16:0. Fatty alcohol and fatty acid patterns were tested as possible descriptors of ingested prey (derived from literature data.) through multivariate discriminant analyses. Comparisons of the WE fatty alcohol patterns showed a close association with the alcohol structure of 3 myctophid fish species namely Krefftichthys anderssoni, Gymnoscopelus braueri and Electrona antarctica; these results were corroborated by WE fatty acid analysis. Comparison of TAG fatty acid patterns showed the highest similarity between oils and the digestive gland of the myctophid-eater squid Moroteuthis ingens in association with the myctophid Electrona carlsbergi. Hence, biochemical analysis of both WE and TAG strongly suggested that adult short-tailed shearwaters mainly prey upon Antarctic/sub-Antarctic myctophids when they feed for themselves, thus emphasizing the role of these oceanic mesopelagic fish in the marine ecosystem of the Southern Ocean. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Développement et Pathologie du Tissu Musculaire (DPTM) Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Nantes |
format |
Article in Journal/Newspaper |
author |
Connan, M Mayzaud, P Boutoute, M Weimerskirch, H Cherel, Y |
author_facet |
Connan, M Mayzaud, P Boutoute, M Weimerskirch, H Cherel, Y |
author_sort |
Connan, M |
title |
Lipid composition of stomach oil in a procellariiform seabird Puffinus tenuirostris: implications for food web studies |
title_short |
Lipid composition of stomach oil in a procellariiform seabird Puffinus tenuirostris: implications for food web studies |
title_full |
Lipid composition of stomach oil in a procellariiform seabird Puffinus tenuirostris: implications for food web studies |
title_fullStr |
Lipid composition of stomach oil in a procellariiform seabird Puffinus tenuirostris: implications for food web studies |
title_full_unstemmed |
Lipid composition of stomach oil in a procellariiform seabird Puffinus tenuirostris: implications for food web studies |
title_sort |
lipid composition of stomach oil in a procellariiform seabird puffinus tenuirostris: implications for food web studies |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-03506658 https://hal.science/hal-03506658/document https://hal.science/hal-03506658/file/m290p277-1.pdf https://doi.org/10.3354/meps290277 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctica Puffinus tenuirostris Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Puffinus tenuirostris Southern Ocean |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-03506658 Marine Ecology Progress Series, 2005, 290, pp.277-290. ⟨10.3354/meps290277⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps290277 hal-03506658 https://hal.science/hal-03506658 https://hal.science/hal-03506658/document https://hal.science/hal-03506658/file/m290p277-1.pdf doi:10.3354/meps290277 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps290277 |
container_title |
Marine Ecology Progress Series |
container_volume |
290 |
container_start_page |
277 |
op_container_end_page |
290 |
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1766244731224850432 |