Diet of the soft-plumaged petrel (Pterodroma mollis) at Kerguelen Islands and a review of the food of gadfly petrels (Pterodroma spp.) worldwide
International audience Little is known on the food and feeding ecology of the soft-plumaged petrel Pterodroma mollis, which is the single gadflypetrel Pterodroma spp. with a circumpolar breeding distribution within the Southern Ocean. Our primary goal was to describeits diet at Kerguelen Islands, wh...
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Online Access: | https://hal.science/hal-03539068 https://doi.org/10.1007/s00227-022-04019-w |
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ftunivrochelle:oai:HAL:hal-03539068v1 2024-02-11T10:05:27+01:00 Diet of the soft-plumaged petrel (Pterodroma mollis) at Kerguelen Islands and a review of the food of gadfly petrels (Pterodroma spp.) worldwide Cherel, Yves Bocher, Pierrick Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) 2022-02 https://hal.science/hal-03539068 https://doi.org/10.1007/s00227-022-04019-w en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-022-04019-w hal-03539068 https://hal.science/hal-03539068 doi:10.1007/s00227-022-04019-w ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-03539068 Marine Biology, 2022, 169 (2), pp.31. ⟨10.1007/s00227-022-04019-w⟩ Fish Food Myctophidae Procellariiformes Seabirds Southern Ocean Squid Tropics [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2022 ftunivrochelle https://doi.org/10.1007/s00227-022-04019-w 2024-01-23T23:34:31Z International audience Little is known on the food and feeding ecology of the soft-plumaged petrel Pterodroma mollis, which is the single gadflypetrel Pterodroma spp. with a circumpolar breeding distribution within the Southern Ocean. Our primary goal was to describeits diet at Kerguelen Islands, which is the southernmost breeding locality of the species. Soft-plumaged petrels fed on fish(71% by mass), and secondarily on crustaceans (22%), while cephalopods (7%) and other items (< 1%) were minor dietarycomponents. Eight-hundred and sixty prey were identified from the pooled 33 food samples, with the 2 hyperiid amphipodsCyllopus magellanicus (48%) and Themisto gaudichaudii (35%) being the main food items by number. Owing to their largersize than crustaceans, mesopelagic fishes were the main prey by mass, with myctophids being the most important fish familyin terms of both abundance (68% of the fish) and diversity (10 species). Prey distribution indicated that soft-plumagedpetrels foraged primarily in oceanic subantarctic waters to feed their chicks. The oceanic life style of gadfly petrels was thenhighlighted by a review of their diet worldwide (20 species, 26 studies). Gadfly petrels prey mainly upon mesopelagic fishes(chiefly myctophids) and squids with their relative proportions depending on species and localities. Crustaceans are minorfood items for tropical species, but they form a significant part of the food of the small- and medium-sized petrels that live intemperate and cold waters. The review underlines the need for more well-designed investigations on this globally endangeredgroup of seabirds, since dietary information is available for only 57% of the 35 species of gadfly petrels. Article in Journal/Newspaper Kerguelen Islands Southern Ocean HAL - Université de La Rochelle Kerguelen Kerguelen Islands Southern Ocean Marine Biology 169 2 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Fish Food Myctophidae Procellariiformes Seabirds Southern Ocean Squid Tropics [SDE]Environmental Sciences |
spellingShingle |
Fish Food Myctophidae Procellariiformes Seabirds Southern Ocean Squid Tropics [SDE]Environmental Sciences Cherel, Yves Bocher, Pierrick Diet of the soft-plumaged petrel (Pterodroma mollis) at Kerguelen Islands and a review of the food of gadfly petrels (Pterodroma spp.) worldwide |
topic_facet |
Fish Food Myctophidae Procellariiformes Seabirds Southern Ocean Squid Tropics [SDE]Environmental Sciences |
description |
International audience Little is known on the food and feeding ecology of the soft-plumaged petrel Pterodroma mollis, which is the single gadflypetrel Pterodroma spp. with a circumpolar breeding distribution within the Southern Ocean. Our primary goal was to describeits diet at Kerguelen Islands, which is the southernmost breeding locality of the species. Soft-plumaged petrels fed on fish(71% by mass), and secondarily on crustaceans (22%), while cephalopods (7%) and other items (< 1%) were minor dietarycomponents. Eight-hundred and sixty prey were identified from the pooled 33 food samples, with the 2 hyperiid amphipodsCyllopus magellanicus (48%) and Themisto gaudichaudii (35%) being the main food items by number. Owing to their largersize than crustaceans, mesopelagic fishes were the main prey by mass, with myctophids being the most important fish familyin terms of both abundance (68% of the fish) and diversity (10 species). Prey distribution indicated that soft-plumagedpetrels foraged primarily in oceanic subantarctic waters to feed their chicks. The oceanic life style of gadfly petrels was thenhighlighted by a review of their diet worldwide (20 species, 26 studies). Gadfly petrels prey mainly upon mesopelagic fishes(chiefly myctophids) and squids with their relative proportions depending on species and localities. Crustaceans are minorfood items for tropical species, but they form a significant part of the food of the small- and medium-sized petrels that live intemperate and cold waters. The review underlines the need for more well-designed investigations on this globally endangeredgroup of seabirds, since dietary information is available for only 57% of the 35 species of gadfly petrels. |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Cherel, Yves Bocher, Pierrick |
author_facet |
Cherel, Yves Bocher, Pierrick |
author_sort |
Cherel, Yves |
title |
Diet of the soft-plumaged petrel (Pterodroma mollis) at Kerguelen Islands and a review of the food of gadfly petrels (Pterodroma spp.) worldwide |
title_short |
Diet of the soft-plumaged petrel (Pterodroma mollis) at Kerguelen Islands and a review of the food of gadfly petrels (Pterodroma spp.) worldwide |
title_full |
Diet of the soft-plumaged petrel (Pterodroma mollis) at Kerguelen Islands and a review of the food of gadfly petrels (Pterodroma spp.) worldwide |
title_fullStr |
Diet of the soft-plumaged petrel (Pterodroma mollis) at Kerguelen Islands and a review of the food of gadfly petrels (Pterodroma spp.) worldwide |
title_full_unstemmed |
Diet of the soft-plumaged petrel (Pterodroma mollis) at Kerguelen Islands and a review of the food of gadfly petrels (Pterodroma spp.) worldwide |
title_sort |
diet of the soft-plumaged petrel (pterodroma mollis) at kerguelen islands and a review of the food of gadfly petrels (pterodroma spp.) worldwide |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03539068 https://doi.org/10.1007/s00227-022-04019-w |
geographic |
Kerguelen Kerguelen Islands Southern Ocean |
geographic_facet |
Kerguelen Kerguelen Islands Southern Ocean |
genre |
Kerguelen Islands Southern Ocean |
genre_facet |
Kerguelen Islands Southern Ocean |
op_source |
ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-03539068 Marine Biology, 2022, 169 (2), pp.31. ⟨10.1007/s00227-022-04019-w⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-022-04019-w hal-03539068 https://hal.science/hal-03539068 doi:10.1007/s00227-022-04019-w |
op_doi |
https://doi.org/10.1007/s00227-022-04019-w |
container_title |
Marine Biology |
container_volume |
169 |
container_issue |
2 |
_version_ |
1790602500695392256 |