Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C

Stable isotope composition of marine top predator’s tissues provides insight information of its trophic ecology and migratory behavior. Previous reports have shown that dermal tissues could record longer patterns of hunting and movement. Based on this, the aim of this study was to describe the feedi...

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Detalles Bibliográficos
Autores: Mario Jaime-Rivera, Javier Caraveo-Patiño, Mauricio Hoyos-Padilla, Felipe Galván-Magaña
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:México
Institución:Instituto Politécnico Nacional
Repositorio:Redalyc-IPN
OAI Identifier:oai:redalyc.org:44931383019
Acceso en línea:https://www.redalyc.org/articulo.oa?id=44931383019
Access Level:acceso abierto
Palabra clave:Biología
Key words
Pinnipeds
white shark
mixing models
feeding habits
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spelling Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13CMario Jaime-RiveraJavier Caraveo-PatiñoMauricio Hoyos-PadillaFelipe Galván-MagañaBiologíaKey wordsPinnipedswhite sharkmixing modelsfeeding habitsStable isotope composition of marine top predator’s tissues provides insight information of its trophic ecology and migratory behavior. Previous reports have shown that dermal tissues could record longer patterns of hunting and movement. Based on this, the aim of this study was to describe the feeding and migratory habits of the white shark from Isla Guadalupe, using stable isotopic analysis of dermis. We considered a small subset of many possible prey taxa that the sharks could have eaten throughout their migration: pinnipeds, squid and tuna. We grouped the data in five focal areas: Gulf of California, Coast of California, Isla Guadalupe, SOFA and Hawaii. We performed a Bayesian mixing model to study the trophic ecology of this top predator. Average isotopic values for dermis tissue of white shark were δ 13 C (-14.5‰) and δ 15 N (19.1‰). Corrected white shark dermal mean values to resemble muscle were δ 13 C (-16.6‰) and δ 15 N (21.2‰). Mixing model data from dermis showed predation in offshore areas such the SOFA and a main importance of pinnipeds as prey of the white shark in Isla Guadalupe. Rev. Biol. Trop. 62 (2): 637-647. Epub 2014 June 01.Universidad de Costa Rica2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf0034-7744https://www.redalyc.org/articulo.oa?id=44931383019Revista de Biología Tropical (Costa Rica) Num.2 Vol.62reponame:Redalyc-IPNinstname:Instituto Politécnico Nacionalinstacron:IPNenhttp://www.redalyc.org/revista.oa?id=449Revista de Biología Tropicalinfo:eu-repo/semantics/openAccessoai:redalyc.org:449313830192026-01-29T02:54:56Z
dc.title.none.fl_str_mv Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C
title Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C
spellingShingle Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C
Mario Jaime-Rivera
Biología
Key words
Pinnipeds
white shark
mixing models
feeding habits
title_short Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C
title_full Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C
title_fullStr Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C
title_full_unstemmed Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C
title_sort Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes d15N and d 13C
dc.creator.none.fl_str_mv Mario Jaime-Rivera
Javier Caraveo-Patiño
Mauricio Hoyos-Padilla
Felipe Galván-Magaña
author Mario Jaime-Rivera
author_facet Mario Jaime-Rivera
Javier Caraveo-Patiño
Mauricio Hoyos-Padilla
Felipe Galván-Magaña
author_role author
author2 Javier Caraveo-Patiño
Mauricio Hoyos-Padilla
Felipe Galván-Magaña
author2_role author
author
author
dc.subject.none.fl_str_mv Biología
Key words
Pinnipeds
white shark
mixing models
feeding habits
topic Biología
Key words
Pinnipeds
white shark
mixing models
feeding habits
description Stable isotope composition of marine top predator’s tissues provides insight information of its trophic ecology and migratory behavior. Previous reports have shown that dermal tissues could record longer patterns of hunting and movement. Based on this, the aim of this study was to describe the feeding and migratory habits of the white shark from Isla Guadalupe, using stable isotopic analysis of dermis. We considered a small subset of many possible prey taxa that the sharks could have eaten throughout their migration: pinnipeds, squid and tuna. We grouped the data in five focal areas: Gulf of California, Coast of California, Isla Guadalupe, SOFA and Hawaii. We performed a Bayesian mixing model to study the trophic ecology of this top predator. Average isotopic values for dermis tissue of white shark were δ 13 C (-14.5‰) and δ 15 N (19.1‰). Corrected white shark dermal mean values to resemble muscle were δ 13 C (-16.6‰) and δ 15 N (21.2‰). Mixing model data from dermis showed predation in offshore areas such the SOFA and a main importance of pinnipeds as prey of the white shark in Isla Guadalupe. Rev. Biol. Trop. 62 (2): 637-647. Epub 2014 June 01.
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0034-7744
https://www.redalyc.org/articulo.oa?id=44931383019
identifier_str_mv 0034-7744
url https://www.redalyc.org/articulo.oa?id=44931383019
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv http://www.redalyc.org/revista.oa?id=449
dc.rights.none.fl_str_mv Revista de Biología Tropical
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Revista de Biología Tropical
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad de Costa Rica
publisher.none.fl_str_mv Universidad de Costa Rica
dc.source.none.fl_str_mv Revista de Biología Tropical (Costa Rica) Num.2 Vol.62
reponame:Redalyc-IPN
instname:Instituto Politécnico Nacional
instacron:IPN
instname_str Instituto Politécnico Nacional
instacron_str IPN
institution IPN
reponame_str Redalyc-IPN
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