Are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? Validation of an increasingly used methodology
Rationale Baleen plates are anatomical structures composed of inert tissue that hang from the upper jaw in mysticetes. Baleen plates may differ in size and in coloration between different segments of the filtering row or between sides of the mouth. Concern has been raised that variation in baleen pl...
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ftubarcepubl:oai:diposit.ub.edu:2445/164243 2024-02-11T10:03:48+01:00 Are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? Validation of an increasingly used methodology García-Vernet, Raquel Sant, Pol Víkingsson, Gísli Borrell Thió, Assumpció Aguilar, Àlex 2018-08-15 7 p. application/pdf http://hdl.handle.net/2445/164243 eng eng Wiley Versió postprint del document publicat a: https://doi.org/10.1002/rcm.8169 Rapid Communications in Mass Spectrometry, 2018, vol. 32, num. 15, p. 1257-1262 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1002/rcm.8169 0951-4198 http://hdl.handle.net/2445/164243 682080 (c) Wiley, 2018 info:eu-repo/semantics/openAccess Isòtops estables en ecologia Filtració Balenes Stable isotopes in ecological research Filtration Whales info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion 2018 ftubarcepubl https://doi.org/10.1002/rcm.8169 2024-01-24T01:12:10Z Rationale Baleen plates are anatomical structures composed of inert tissue that hang from the upper jaw in mysticetes. Baleen plates may differ in size and in coloration between different segments of the filtering row or between sides of the mouth. Concern has been raised that variation in baleen plate characteristics may reflect dissimilar structural composition and growth rates liable to affect stable isotope ratios and their oscillation patterns. Methods We measured stable carbon (δ13C values) and nitrogen (δ15N values) isotope ratios at intervals of 1 cm along the longitudinal axis of six baleen plates collected from different positions along the mouth of a fin whale. All samples were analysed using a continuous flow isotope ratio mass spectrometer. Generalized additive models were fitted to the data from each baleen plate and the results of the models were compared visually. Results A total of 206 samples were analysed. Visually, all baleen plates presented nearly identical oscillations, independent of the position or the coloration of the baleen plate. However, the variation in δ13C and δ15N values occurring between the different baleen plates was higher in the segments of oscillations exhibiting steeper slopes. Conclusions Differences in size between plates in an individual are due to differential erosion rates according to their position in the mouth. Therefore, the position of sampling along the baleen plate row should not be a reason for concern when conducting stable isotope studies. Article in Journal/Newspaper Fin whale Dipòsit Digital de la Universitat de Barcelona Rapid Communications in Mass Spectrometry 32 15 1257 1262 |
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Open Polar |
collection |
Dipòsit Digital de la Universitat de Barcelona |
op_collection_id |
ftubarcepubl |
language |
English |
topic |
Isòtops estables en ecologia Filtració Balenes Stable isotopes in ecological research Filtration Whales |
spellingShingle |
Isòtops estables en ecologia Filtració Balenes Stable isotopes in ecological research Filtration Whales García-Vernet, Raquel Sant, Pol Víkingsson, Gísli Borrell Thió, Assumpció Aguilar, Àlex Are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? Validation of an increasingly used methodology |
topic_facet |
Isòtops estables en ecologia Filtració Balenes Stable isotopes in ecological research Filtration Whales |
description |
Rationale Baleen plates are anatomical structures composed of inert tissue that hang from the upper jaw in mysticetes. Baleen plates may differ in size and in coloration between different segments of the filtering row or between sides of the mouth. Concern has been raised that variation in baleen plate characteristics may reflect dissimilar structural composition and growth rates liable to affect stable isotope ratios and their oscillation patterns. Methods We measured stable carbon (δ13C values) and nitrogen (δ15N values) isotope ratios at intervals of 1 cm along the longitudinal axis of six baleen plates collected from different positions along the mouth of a fin whale. All samples were analysed using a continuous flow isotope ratio mass spectrometer. Generalized additive models were fitted to the data from each baleen plate and the results of the models were compared visually. Results A total of 206 samples were analysed. Visually, all baleen plates presented nearly identical oscillations, independent of the position or the coloration of the baleen plate. However, the variation in δ13C and δ15N values occurring between the different baleen plates was higher in the segments of oscillations exhibiting steeper slopes. Conclusions Differences in size between plates in an individual are due to differential erosion rates according to their position in the mouth. Therefore, the position of sampling along the baleen plate row should not be a reason for concern when conducting stable isotope studies. |
format |
Article in Journal/Newspaper |
author |
García-Vernet, Raquel Sant, Pol Víkingsson, Gísli Borrell Thió, Assumpció Aguilar, Àlex |
author_facet |
García-Vernet, Raquel Sant, Pol Víkingsson, Gísli Borrell Thió, Assumpció Aguilar, Àlex |
author_sort |
García-Vernet, Raquel |
title |
Are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? Validation of an increasingly used methodology |
title_short |
Are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? Validation of an increasingly used methodology |
title_full |
Are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? Validation of an increasingly used methodology |
title_fullStr |
Are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? Validation of an increasingly used methodology |
title_full_unstemmed |
Are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? Validation of an increasingly used methodology |
title_sort |
are stable isotope ratios and oscillations consistent in all baleen plates along the filtering apparatus? validation of an increasingly used methodology |
publisher |
Wiley |
publishDate |
2018 |
url |
http://hdl.handle.net/2445/164243 |
genre |
Fin whale |
genre_facet |
Fin whale |
op_relation |
Versió postprint del document publicat a: https://doi.org/10.1002/rcm.8169 Rapid Communications in Mass Spectrometry, 2018, vol. 32, num. 15, p. 1257-1262 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1002/rcm.8169 0951-4198 http://hdl.handle.net/2445/164243 682080 |
op_rights |
(c) Wiley, 2018 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/rcm.8169 |
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Rapid Communications in Mass Spectrometry |
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15 |
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