Dieta del tiburón diamante Isurus oxyrinchus en el norte del Perú: Estudio preliminar

Adriana González-Pestana; Francisco Córdova-Zavaleta; Vania Arrese-Dávila; Ruben Torrejón-Zegarra; Nicolas Acuña-Perales; Jefffey C. Mangel; Joanna Alfaro-Shigueto

doi:10.22370/rbmo.2022.57.Especial.3683

Dieta del tiburón diamante Isurus oxyrinchus en el norte del Perú: Estudio preliminar

Translated title of the contribution: Diet of the shortfin mako shark Isurus oxyrinchus off northern Peru: A preliminary study

Adriana González-Pestana, Francisco Córdova-Zavaleta, Vania Arrese-Dávila, Ruben Torrejón-Zegarra, Nicolas Acuña-Perales, Jefffey C. Mangel, Joanna Alfaro-Shigueto

Research output: Contribution to journal › Article › peer-review

Abstract

The shortfin mako shark (Isurus oxyrinchus) is considered one of the most important top predators in pelagic marine food webs. The diet of the shortfin mako shark was studied in northern Peru through the analysis of 25 stomach contents. Cephalopods were the most important prey group, followed by bony fishes and crustaceans. A total of 11 prey species were identified, with the Humboldt squid Dosidicus gigas being the most important prey, followed by the Ancistrocheirus lesueurii squid. The trophic level was 4.3 (tertiary predator) and the trophic niche width was 0.47 (intermediate degree of specialization). This study contributes to the limited knowledge about the ecology of the shortfin mako shark in northern Peru.

Translated title of the contribution	Diet of the shortfin mako shark Isurus oxyrinchus off northern Peru: A preliminary study
Original language	Spanish
Pages (from-to)	295-301
Number of pages	7
Journal	Revista de Biologia Marina y Oceanografia
Volume	57
Issue number	Special Issue
DOIs	https://doi.org/10.22370/rbmo.2022.57.Especial.3683
State	Published - 5 Oct 2022

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10.22370/rbmo.2022.57.Especial.3683

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abstract = "The shortfin mako shark (Isurus oxyrinchus) is considered one of the most important top predators in pelagic marine food webs. The diet of the shortfin mako shark was studied in northern Peru through the analysis of 25 stomach contents. Cephalopods were the most important prey group, followed by bony fishes and crustaceans. A total of 11 prey species were identified, with the Humboldt squid Dosidicus gigas being the most important prey, followed by the Ancistrocheirus lesueurii squid. The trophic level was 4.3 (tertiary predator) and the trophic niche width was 0.47 (intermediate degree of specialization). This study contributes to the limited knowledge about the ecology of the shortfin mako shark in northern Peru.",

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AU - Córdova-Zavaleta, Francisco

AU - Arrese-Dávila, Vania

AU - Torrejón-Zegarra, Ruben

AU - Acuña-Perales, Nicolas

AU - Mangel, Jefffey C.

AU - Alfaro-Shigueto, Joanna

N1 - Publisher Copyright: © The author(s).

PY - 2022/10/5

Y1 - 2022/10/5

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AB - The shortfin mako shark (Isurus oxyrinchus) is considered one of the most important top predators in pelagic marine food webs. The diet of the shortfin mako shark was studied in northern Peru through the analysis of 25 stomach contents. Cephalopods were the most important prey group, followed by bony fishes and crustaceans. A total of 11 prey species were identified, with the Humboldt squid Dosidicus gigas being the most important prey, followed by the Ancistrocheirus lesueurii squid. The trophic level was 4.3 (tertiary predator) and the trophic niche width was 0.47 (intermediate degree of specialization). This study contributes to the limited knowledge about the ecology of the shortfin mako shark in northern Peru.

KW - Stomach contents

KW - cephalopods

KW - fishery

KW - trophic ecology

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SN - 0717-3326

VL - 57

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EP - 301

JO - Revista de Biologia Marina y Oceanografia

JF - Revista de Biologia Marina y Oceanografia

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Dieta del tiburón diamante Isurus oxyrinchus en el norte del Perú: Estudio preliminar

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