Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea

Abstract Satellite-tracking of mature white sharks (Carcharodon carcharias) has revealed open-ocean movements spanning months and covering tens of thousands of kilometers. But how are the energetic demands of these active apex predators met as they leave coastal areas with relatively high prey abund...

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Autores principales:	Peter Gaube, Camrin D. Braun, Gareth L. Lawson, Dennis J. McGillicuddy, Alice Della Penna, Gregory B. Skomal, Chris Fischer, Simon R. Thorrold
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8366127654d7471eb009211e986c1640
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spelling	oai:doaj.org-article:8366127654d7471eb009211e986c16402021-12-02T11:40:15ZMesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea10.1038/s41598-018-25565-82045-2322https://doaj.org/article/8366127654d7471eb009211e986c16402018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25565-8https://doaj.org/toc/2045-2322Abstract Satellite-tracking of mature white sharks (Carcharodon carcharias) has revealed open-ocean movements spanning months and covering tens of thousands of kilometers. But how are the energetic demands of these active apex predators met as they leave coastal areas with relatively high prey abundance to swim across the open ocean through waters often characterized as biological deserts? Here we investigate mesoscale oceanographic variability encountered by two white sharks as they moved through the Gulf Stream region and Sargasso Sea in the North Atlantic Ocean. In the vicinity of the Gulf Stream, the two mature female white sharks exhibited extensive use of the interiors of clockwise-rotating anticyclonic eddies, characterized by positive (warm) temperature anomalies. One tagged white shark was also equipped with an archival tag that indicated this individual made frequent dives to nearly 1,000 m in anticyclones, where it was presumably foraging on mesopelagic prey. We propose that warm temperature anomalies in anticyclones make prey more accessible and energetically profitable to adult white sharks in the Gulf Stream region by reducing the physiological costs of thermoregulation in cold water. The results presented here provide valuable new insight into open ocean habitat use by mature, female white sharks that may be applicable to other large pelagic predators.Peter GaubeCamrin D. BraunGareth L. LawsonDennis J. McGillicuddyAlice Della PennaGregory B. SkomalChris FischerSimon R. ThorroldNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Peter Gaube Camrin D. Braun Gareth L. Lawson Dennis J. McGillicuddy Alice Della Penna Gregory B. Skomal Chris Fischer Simon R. Thorrold Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea
description	Abstract Satellite-tracking of mature white sharks (Carcharodon carcharias) has revealed open-ocean movements spanning months and covering tens of thousands of kilometers. But how are the energetic demands of these active apex predators met as they leave coastal areas with relatively high prey abundance to swim across the open ocean through waters often characterized as biological deserts? Here we investigate mesoscale oceanographic variability encountered by two white sharks as they moved through the Gulf Stream region and Sargasso Sea in the North Atlantic Ocean. In the vicinity of the Gulf Stream, the two mature female white sharks exhibited extensive use of the interiors of clockwise-rotating anticyclonic eddies, characterized by positive (warm) temperature anomalies. One tagged white shark was also equipped with an archival tag that indicated this individual made frequent dives to nearly 1,000 m in anticyclones, where it was presumably foraging on mesopelagic prey. We propose that warm temperature anomalies in anticyclones make prey more accessible and energetically profitable to adult white sharks in the Gulf Stream region by reducing the physiological costs of thermoregulation in cold water. The results presented here provide valuable new insight into open ocean habitat use by mature, female white sharks that may be applicable to other large pelagic predators.
format	article
author	Peter Gaube Camrin D. Braun Gareth L. Lawson Dennis J. McGillicuddy Alice Della Penna Gregory B. Skomal Chris Fischer Simon R. Thorrold
author_facet	Peter Gaube Camrin D. Braun Gareth L. Lawson Dennis J. McGillicuddy Alice Della Penna Gregory B. Skomal Chris Fischer Simon R. Thorrold
author_sort	Peter Gaube
title	Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea
title_short	Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea
title_full	Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea
title_fullStr	Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea
title_full_unstemmed	Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea
title_sort	mesoscale eddies influence the movements of mature female white sharks in the gulf stream and sargasso sea
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/8366127654d7471eb009211e986c1640
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Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea

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