Stable isotopes provide insight into population structure and segregation in eastern North Atlantic sperm whales
In pelagic species inhabiting large oceans, genetic differentiation tends to be mild and populations devoid of structure. However, large cetaceans have provided many examples of structuring. Here we investigate whether the sperm whale, a pelagic species with large population sizes and reputedly high...
Main Authors: | , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2013
|
Subjects: | |
Online Access: | http://hdl.handle.net/2445/122524 |
id |
ftubarcepubl:oai:diposit.ub.edu:2445/122524 |
---|---|
record_format |
openpolar |
spelling |
ftubarcepubl:oai:diposit.ub.edu:2445/122524 2024-02-11T10:06:10+01:00 Stable isotopes provide insight into population structure and segregation in eastern North Atlantic sperm whales Borrell Thió, Assumpció Velásquez Vacca, Adriana Pinela, Ana M. Kinze, Carl Lockyer, C. H. Vighi, Morgana Aguilar, Àlex 2013-12-06 10 p. application/pdf http://hdl.handle.net/2445/122524 eng eng Public Library of Science (PLoS) Reproducció del document publicat a: https://doi.org/10.1371/journal.pone.0082398.g001 PLoS One, 2013, vol. 8, num. 12, p. e82398 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1371/journal.pone.0082398.g001 1932-6203 http://hdl.handle.net/2445/122524 629139 24324782 cc-by (c) Borrell Thió, Assumpció et al., 2013 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess Balenes Ecologia marina Biologia de poblacions Poblacions animals Atlàntic Oceà Whales Marine ecology Population biology Animal populations Atlantic Ocean info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftubarcepubl https://doi.org/10.1371/journal.pone.0082398.g001 2024-01-24T01:04:02Z In pelagic species inhabiting large oceans, genetic differentiation tends to be mild and populations devoid of structure. However, large cetaceans have provided many examples of structuring. Here we investigate whether the sperm whale, a pelagic species with large population sizes and reputedly highly mobile, shows indication of structuring in the eastern North Atlantic, an ocean basin in which a single population is believed to occur. To do so, we examined stable isotope values in sequential growth layer groups of teeth from individuals sampled in Denmark and NW Spain. In each layer we measured oxygen- isotope ratios (δ18O) in the inorganic component (hydroxyapatite), and nitrogen and carbon isotope ratios (δ15N: δ13C) in the organic component (primarily collagenous). We found significant differences between Denmark and NW Spain in δ15N and δ18O values in the layer deposited at age 3, considered to be the one best representing the baseline of the breeding ground, in δ15N, δ13C and δ18O values in the period up to age 20, and in the ontogenetic variation of δ15N and δ18O values. These differences evidence that diet composition, use of habitat and/or migratory destinations are dissimilar between whales from the two regions and suggest that the North Atlantic population of sperm whales is more structured than traditionally accepted. Article in Journal/Newspaper North Atlantic Sperm whale Dipòsit Digital de la Universitat de Barcelona |
institution |
Open Polar |
collection |
Dipòsit Digital de la Universitat de Barcelona |
op_collection_id |
ftubarcepubl |
language |
English |
topic |
Balenes Ecologia marina Biologia de poblacions Poblacions animals Atlàntic Oceà Whales Marine ecology Population biology Animal populations Atlantic Ocean |
spellingShingle |
Balenes Ecologia marina Biologia de poblacions Poblacions animals Atlàntic Oceà Whales Marine ecology Population biology Animal populations Atlantic Ocean Borrell Thió, Assumpció Velásquez Vacca, Adriana Pinela, Ana M. Kinze, Carl Lockyer, C. H. Vighi, Morgana Aguilar, Àlex Stable isotopes provide insight into population structure and segregation in eastern North Atlantic sperm whales |
topic_facet |
Balenes Ecologia marina Biologia de poblacions Poblacions animals Atlàntic Oceà Whales Marine ecology Population biology Animal populations Atlantic Ocean |
description |
In pelagic species inhabiting large oceans, genetic differentiation tends to be mild and populations devoid of structure. However, large cetaceans have provided many examples of structuring. Here we investigate whether the sperm whale, a pelagic species with large population sizes and reputedly highly mobile, shows indication of structuring in the eastern North Atlantic, an ocean basin in which a single population is believed to occur. To do so, we examined stable isotope values in sequential growth layer groups of teeth from individuals sampled in Denmark and NW Spain. In each layer we measured oxygen- isotope ratios (δ18O) in the inorganic component (hydroxyapatite), and nitrogen and carbon isotope ratios (δ15N: δ13C) in the organic component (primarily collagenous). We found significant differences between Denmark and NW Spain in δ15N and δ18O values in the layer deposited at age 3, considered to be the one best representing the baseline of the breeding ground, in δ15N, δ13C and δ18O values in the period up to age 20, and in the ontogenetic variation of δ15N and δ18O values. These differences evidence that diet composition, use of habitat and/or migratory destinations are dissimilar between whales from the two regions and suggest that the North Atlantic population of sperm whales is more structured than traditionally accepted. |
format |
Article in Journal/Newspaper |
author |
Borrell Thió, Assumpció Velásquez Vacca, Adriana Pinela, Ana M. Kinze, Carl Lockyer, C. H. Vighi, Morgana Aguilar, Àlex |
author_facet |
Borrell Thió, Assumpció Velásquez Vacca, Adriana Pinela, Ana M. Kinze, Carl Lockyer, C. H. Vighi, Morgana Aguilar, Àlex |
author_sort |
Borrell Thió, Assumpció |
title |
Stable isotopes provide insight into population structure and segregation in eastern North Atlantic sperm whales |
title_short |
Stable isotopes provide insight into population structure and segregation in eastern North Atlantic sperm whales |
title_full |
Stable isotopes provide insight into population structure and segregation in eastern North Atlantic sperm whales |
title_fullStr |
Stable isotopes provide insight into population structure and segregation in eastern North Atlantic sperm whales |
title_full_unstemmed |
Stable isotopes provide insight into population structure and segregation in eastern North Atlantic sperm whales |
title_sort |
stable isotopes provide insight into population structure and segregation in eastern north atlantic sperm whales |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
http://hdl.handle.net/2445/122524 |
genre |
North Atlantic Sperm whale |
genre_facet |
North Atlantic Sperm whale |
op_relation |
Reproducció del document publicat a: https://doi.org/10.1371/journal.pone.0082398.g001 PLoS One, 2013, vol. 8, num. 12, p. e82398 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1371/journal.pone.0082398.g001 1932-6203 http://hdl.handle.net/2445/122524 629139 24324782 |
op_rights |
cc-by (c) Borrell Thió, Assumpció et al., 2013 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0082398.g001 |
_version_ |
1790603697025187840 |