Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean
In order to improve our knowledge on the feeding ecology of long-finned pilot whales (Globicephala melas) in Northeast Atlantic waters, skin samples of 68 long-finned pilot whales stranded in Northwest Iberia (n = 22) and Scotland (n=46)were analysed using stable isotopes of δ13Candδ15N. Isotopic mi...
Published in: | Journal of Experimental Marine Biology and Ecology |
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Online Access: | https://pure.sruc.ac.uk/en/publications/7299e50f-6ef6-4581-b9b7-85899f0eb844 https://doi.org/10.1016/j.jembe.2015.01.007 |
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ftsrucpubl:oai:pure.atira.dk:publications/7299e50f-6ef6-4581-b9b7-85899f0eb844 2024-04-14T08:16:26+00:00 Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean Monteiro, S Ferreira, M Vingada, JV Lopez, A Brownlow, A Mendez-Fernandez, P 2015-01-28 https://pure.sruc.ac.uk/en/publications/7299e50f-6ef6-4581-b9b7-85899f0eb844 https://doi.org/10.1016/j.jembe.2015.01.007 eng eng https://pure.sruc.ac.uk/en/publications/7299e50f-6ef6-4581-b9b7-85899f0eb844 info:eu-repo/semantics/closedAccess Monteiro , S , Ferreira , M , Vingada , JV , Lopez , A , Brownlow , A & Mendez-Fernandez , P 2015 , ' Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean ' , Journal of Experimental Marine Biology and Ecology , vol. 465 , pp. 56 - 63 . https://doi.org/10.1016/j.jembe.2015.01.007 Feeding habitat Isotopic mixing models Marine mammals Northeast Atlantic Trophic relationships /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2015 ftsrucpubl https://doi.org/10.1016/j.jembe.2015.01.007 2024-03-18T11:44:08Z In order to improve our knowledge on the feeding ecology of long-finned pilot whales (Globicephala melas) in Northeast Atlantic waters, skin samples of 68 long-finned pilot whales stranded in Northwest Iberia (n = 22) and Scotland (n=46)were analysed using stable isotopes of δ13Candδ15N. Isotopic mixing models were applied to obtain a quantitative estimate of the proportion of the main prey species in the diet of pilot whales. Stable isotope analysis revealed that 57.8–73.8% of the diet in Northwest Iberia consisted in curled octopus (Eledone cirrhosa), followed by European flying squid (Todarodes sagittatus), while in Scotland the predominant prey species was either Histioteuthis sp. or T. sagittatus, depending of the trophic enrichment factor applied. These results are generally in accordance with previous stomach content studies; however, the isotopic analysis may provide new information regarding key prey species and habitat use that could be missed or underestimated if only stomach contents analysis were used. Additionally, considering that the Atlantic Coast of Iberia was responsible for 95% of the landings of the main prey consumed by pilot whales in this area, between 2000 and 2010, these data provide trophic baseline information to be taken into account in fishery impact assessment studies and management decisions. © 2015 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Northeast Atlantic SRUC (Scotland's Rural College): Research Portal Journal of Experimental Marine Biology and Ecology 465 56 63 |
institution |
Open Polar |
collection |
SRUC (Scotland's Rural College): Research Portal |
op_collection_id |
ftsrucpubl |
language |
English |
topic |
Feeding habitat Isotopic mixing models Marine mammals Northeast Atlantic Trophic relationships /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Feeding habitat Isotopic mixing models Marine mammals Northeast Atlantic Trophic relationships /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Monteiro, S Ferreira, M Vingada, JV Lopez, A Brownlow, A Mendez-Fernandez, P Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean |
topic_facet |
Feeding habitat Isotopic mixing models Marine mammals Northeast Atlantic Trophic relationships /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
In order to improve our knowledge on the feeding ecology of long-finned pilot whales (Globicephala melas) in Northeast Atlantic waters, skin samples of 68 long-finned pilot whales stranded in Northwest Iberia (n = 22) and Scotland (n=46)were analysed using stable isotopes of δ13Candδ15N. Isotopic mixing models were applied to obtain a quantitative estimate of the proportion of the main prey species in the diet of pilot whales. Stable isotope analysis revealed that 57.8–73.8% of the diet in Northwest Iberia consisted in curled octopus (Eledone cirrhosa), followed by European flying squid (Todarodes sagittatus), while in Scotland the predominant prey species was either Histioteuthis sp. or T. sagittatus, depending of the trophic enrichment factor applied. These results are generally in accordance with previous stomach content studies; however, the isotopic analysis may provide new information regarding key prey species and habitat use that could be missed or underestimated if only stomach contents analysis were used. Additionally, considering that the Atlantic Coast of Iberia was responsible for 95% of the landings of the main prey consumed by pilot whales in this area, between 2000 and 2010, these data provide trophic baseline information to be taken into account in fishery impact assessment studies and management decisions. © 2015 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Monteiro, S Ferreira, M Vingada, JV Lopez, A Brownlow, A Mendez-Fernandez, P |
author_facet |
Monteiro, S Ferreira, M Vingada, JV Lopez, A Brownlow, A Mendez-Fernandez, P |
author_sort |
Monteiro, S |
title |
Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean |
title_short |
Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean |
title_full |
Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean |
title_fullStr |
Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean |
title_full_unstemmed |
Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean |
title_sort |
application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( globicephala melas ) in the northeast atlantic ocean |
publishDate |
2015 |
url |
https://pure.sruc.ac.uk/en/publications/7299e50f-6ef6-4581-b9b7-85899f0eb844 https://doi.org/10.1016/j.jembe.2015.01.007 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Monteiro , S , Ferreira , M , Vingada , JV , Lopez , A , Brownlow , A & Mendez-Fernandez , P 2015 , ' Application of stable isotopes to assess the feeding ecology of long-finned pilot whale ( Globicephala melas ) in the Northeast Atlantic Ocean ' , Journal of Experimental Marine Biology and Ecology , vol. 465 , pp. 56 - 63 . https://doi.org/10.1016/j.jembe.2015.01.007 |
op_relation |
https://pure.sruc.ac.uk/en/publications/7299e50f-6ef6-4581-b9b7-85899f0eb844 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.jembe.2015.01.007 |
container_title |
Journal of Experimental Marine Biology and Ecology |
container_volume |
465 |
container_start_page |
56 |
op_container_end_page |
63 |
_version_ |
1796315097178570752 |