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Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory

Stable‐isotope analyses (δ(13)C, δ(15)N and δ(34)S) of multiple tissues (fin, muscle, red blood cells and plasma), revealed ontogenetic shifts in resource use by grey reef sharks Carcharhinus amblyrhynchos and resource partitioning with silvertip sharks Carcharhinus albimarginatus within the British...

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Autores principales: Curnick, David J., Carlisle, Aaron B., Gollock, Matthew J., Schallert, Robert J., Hussey, Nigel E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Blackwell Publishing Ltd 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6849741/
https://www.ncbi.nlm.nih.gov/pubmed/30784087
http://dx.doi.org/10.1111/jfb.13938
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author Curnick, David J.
Carlisle, Aaron B.
Gollock, Matthew J.
Schallert, Robert J.
Hussey, Nigel E.
author_facet Curnick, David J.
Carlisle, Aaron B.
Gollock, Matthew J.
Schallert, Robert J.
Hussey, Nigel E.
author_sort Curnick, David J.
collection PubMed
description Stable‐isotope analyses (δ(13)C, δ(15)N and δ(34)S) of multiple tissues (fin, muscle, red blood cells and plasma), revealed ontogenetic shifts in resource use by grey reef sharks Carcharhinus amblyrhynchos and resource partitioning with silvertip sharks Carcharhinus albimarginatus within the British Indian Ocean Territory marine protected area (MPA). Resource partitioning varied temporally, with C. albimarginatus feeding on more pelagic prey during October to January, potentially attributable to an influx of pelagic prey from outside the MPA at that time. Reef sharks may therefore be affected by processes outside an MPA, even if the sharks do not leave the MPA.
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spelling pubmed-68497412019-11-15 Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory Curnick, David J. Carlisle, Aaron B. Gollock, Matthew J. Schallert, Robert J. Hussey, Nigel E. J Fish Biol Brief Communication Stable‐isotope analyses (δ(13)C, δ(15)N and δ(34)S) of multiple tissues (fin, muscle, red blood cells and plasma), revealed ontogenetic shifts in resource use by grey reef sharks Carcharhinus amblyrhynchos and resource partitioning with silvertip sharks Carcharhinus albimarginatus within the British Indian Ocean Territory marine protected area (MPA). Resource partitioning varied temporally, with C. albimarginatus feeding on more pelagic prey during October to January, potentially attributable to an influx of pelagic prey from outside the MPA at that time. Reef sharks may therefore be affected by processes outside an MPA, even if the sharks do not leave the MPA. Blackwell Publishing Ltd 2019-04-11 2019-04 /pmc/articles/PMC6849741/ /pubmed/30784087 http://dx.doi.org/10.1111/jfb.13938 Text en © 2019 The Authors. Journal of Fish Biology published by John Wiley & Sons Ltd on behalf of The Fisheries Society of the British Isles. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Brief Communication
Curnick, David J.
Carlisle, Aaron B.
Gollock, Matthew J.
Schallert, Robert J.
Hussey, Nigel E.
Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory
title Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory
title_full Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory
title_fullStr Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory
title_full_unstemmed Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory
title_short Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory
title_sort evidence for dynamic resource partitioning between two sympatric reef shark species within the british indian ocean territory
topic Brief Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6849741/
https://www.ncbi.nlm.nih.gov/pubmed/30784087
http://dx.doi.org/10.1111/jfb.13938
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