Marine mammals from the southern North Sea: feeding ecology data from d 13 C and d 15 N measurements
The harbour porpoise Phocoena phocoena , grey seal Halichoerus grypus , harbour seal Phoca vitulina and white-beaked dolphin Lagenorhynchus albirostris are regularly found stranded along southern North Sea coasts. Occasionally, offshore species such as the fin whale Balaenoptera physalus , the white...
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Language: | English |
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2003
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ftvliz:oai:oma.vliz.be:108624 2023-05-15T15:36:40+02:00 Marine mammals from the southern North Sea: feeding ecology data from d 13 C and d 15 N measurements Das, K. Lepoint, G. Leroy, Y. Bouquegneau, J.-M. 2003 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=108624 en eng info:eu-repo/semantics/altIdentifier/wos/000187934600024 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.3354/meps263287 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=108624 info:eu-repo/semantics/restrictedAccess %3Ci%3EMar.+Ecol.+Prog.+Ser.+263%3C%2Fi%3E%3A+287-298.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.3354%2Fmeps263287%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.3354%2Fmeps263287%3C%2Fa%3E Food webs Isotopes Marine mammals Stable isotopes [mammals] ANE North Sea info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2003 ftvliz https://doi.org/10.3354/meps263287 2022-05-01T09:00:49Z The harbour porpoise Phocoena phocoena , grey seal Halichoerus grypus , harbour seal Phoca vitulina and white-beaked dolphin Lagenorhynchus albirostris are regularly found stranded along southern North Sea coasts. Occasionally, offshore species such as the fin whale Balaenoptera physalus , the white-sided dolphin L. acutus and the sperm whale Physeter macrocephalus are also found stranded. In order to trace their diet, we measured d 13 C and d 15 N in their muscles as well as in 49 invertebrate and fish species collected from the southern North Sea. The d 15 N data indicate that the harbour seal, grey seal and white-beaked dolphin occupy the highest trophic position, along with ichtyophageous fishes such as the cod Gadus morhua (mean muscle values of 18.7, 17.9, 18.8 and 19.2‰ respectively). The harbour porpoise occupies a slightly lower trophic position (mean d 15 N value of 16.2‰), reflecting a higher amount of zooplanktivorous fishes in its diet (mean d 15 N of 14.7‰); 2 suckling harbour porpoises displayed a significant d 15 N enrichment of 2.2‰ compared to adult females. Adult females are d 15 N-enriched compared to adult male harbour porpoises. Fin whales, sperm whales and white-sided dolphins are 13 C-depleted compared to southern North Sea particulate organic matter and species, suggesting that despite regular sightings, they do not feed within the southern North Sea area. Article in Journal/Newspaper Balaenoptera physalus Fin whale Gadus morhua Harbour porpoise harbour seal Lagenorhynchus albirostris Phoca vitulina Phocoena phocoena Physeter macrocephalus Sperm whale White-beaked dolphin Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Marine Ecology Progress Series 263 287 298 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Food webs Isotopes Marine mammals Stable isotopes [mammals] ANE North Sea |
spellingShingle |
Food webs Isotopes Marine mammals Stable isotopes [mammals] ANE North Sea Das, K. Lepoint, G. Leroy, Y. Bouquegneau, J.-M. Marine mammals from the southern North Sea: feeding ecology data from d 13 C and d 15 N measurements |
topic_facet |
Food webs Isotopes Marine mammals Stable isotopes [mammals] ANE North Sea |
description |
The harbour porpoise Phocoena phocoena , grey seal Halichoerus grypus , harbour seal Phoca vitulina and white-beaked dolphin Lagenorhynchus albirostris are regularly found stranded along southern North Sea coasts. Occasionally, offshore species such as the fin whale Balaenoptera physalus , the white-sided dolphin L. acutus and the sperm whale Physeter macrocephalus are also found stranded. In order to trace their diet, we measured d 13 C and d 15 N in their muscles as well as in 49 invertebrate and fish species collected from the southern North Sea. The d 15 N data indicate that the harbour seal, grey seal and white-beaked dolphin occupy the highest trophic position, along with ichtyophageous fishes such as the cod Gadus morhua (mean muscle values of 18.7, 17.9, 18.8 and 19.2‰ respectively). The harbour porpoise occupies a slightly lower trophic position (mean d 15 N value of 16.2‰), reflecting a higher amount of zooplanktivorous fishes in its diet (mean d 15 N of 14.7‰); 2 suckling harbour porpoises displayed a significant d 15 N enrichment of 2.2‰ compared to adult females. Adult females are d 15 N-enriched compared to adult male harbour porpoises. Fin whales, sperm whales and white-sided dolphins are 13 C-depleted compared to southern North Sea particulate organic matter and species, suggesting that despite regular sightings, they do not feed within the southern North Sea area. |
format |
Article in Journal/Newspaper |
author |
Das, K. Lepoint, G. Leroy, Y. Bouquegneau, J.-M. |
author_facet |
Das, K. Lepoint, G. Leroy, Y. Bouquegneau, J.-M. |
author_sort |
Das, K. |
title |
Marine mammals from the southern North Sea: feeding ecology data from d 13 C and d 15 N measurements |
title_short |
Marine mammals from the southern North Sea: feeding ecology data from d 13 C and d 15 N measurements |
title_full |
Marine mammals from the southern North Sea: feeding ecology data from d 13 C and d 15 N measurements |
title_fullStr |
Marine mammals from the southern North Sea: feeding ecology data from d 13 C and d 15 N measurements |
title_full_unstemmed |
Marine mammals from the southern North Sea: feeding ecology data from d 13 C and d 15 N measurements |
title_sort |
marine mammals from the southern north sea: feeding ecology data from d 13 c and d 15 n measurements |
publishDate |
2003 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=108624 |
genre |
Balaenoptera physalus Fin whale Gadus morhua Harbour porpoise harbour seal Lagenorhynchus albirostris Phoca vitulina Phocoena phocoena Physeter macrocephalus Sperm whale White-beaked dolphin |
genre_facet |
Balaenoptera physalus Fin whale Gadus morhua Harbour porpoise harbour seal Lagenorhynchus albirostris Phoca vitulina Phocoena phocoena Physeter macrocephalus Sperm whale White-beaked dolphin |
op_source |
%3Ci%3EMar.+Ecol.+Prog.+Ser.+263%3C%2Fi%3E%3A+287-298.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.3354%2Fmeps263287%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.3354%2Fmeps263287%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000187934600024 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.3354/meps263287 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=108624 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3354/meps263287 |
container_title |
Marine Ecology Progress Series |
container_volume |
263 |
container_start_page |
287 |
op_container_end_page |
298 |
_version_ |
1766367030541287424 |