North Pacific warming shifts the juvenile range of a marine apex predator

Abstract During the 2014–2016 North Pacific marine heatwave, unprecedented sightings of juvenile white sharks (Carcharodon carcharias) emerged in central California. These records contradicted the species established life history, where juveniles remain in warmer waters in the southern California Cu...

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Autores principales:	Kisei R. Tanaka, Kyle S. Van Houtan, Eric Mailander, Beatriz S. Dias, Carol Galginaitis, John O’Sullivan, Christopher G. Lowe, Salvador J. Jorgensen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/99cd19ca7769485f9173f79a73ce932d
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spelling	oai:doaj.org-article:99cd19ca7769485f9173f79a73ce932d2021-12-02T14:11:31ZNorth Pacific warming shifts the juvenile range of a marine apex predator10.1038/s41598-021-82424-92045-2322https://doaj.org/article/99cd19ca7769485f9173f79a73ce932d2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82424-9https://doaj.org/toc/2045-2322Abstract During the 2014–2016 North Pacific marine heatwave, unprecedented sightings of juvenile white sharks (Carcharodon carcharias) emerged in central California. These records contradicted the species established life history, where juveniles remain in warmer waters in the southern California Current. This spatial shift is significant as it creates potential conflicts with commercial fisheries, protected species conservation, and public safety concerns. Here, we integrate community science, photogrammetry, biologging, and mesoscale climate data to describe and explain this phenomenon. We find a dramatic increase in white sharks from 2014 to 2019 in Monterey Bay that was overwhelmingly comprised of juvenile sharks < 2.5 m in total body length. Next, we derived thermal preferences from 22 million tag measurements of 14 juvenile sharks and use this to map the cold limit of their range. Consistent with historical records, the position of this cold edge averaged 34° N from 1982 to 2013 but jumped to 38.5° during the 2014–2016 marine heat wave. In addition to a poleward shift, thermally suitable habitat for juvenile sharks declined 223.2 km2 year−1 from 1982 to 2019 and was lowest in 2015 at the peak of the heatwave. In addition to advancing the adaptive management of this apex marine predator, we discuss this opportunity to engage public on climate change through marine megafauna.Kisei R. TanakaKyle S. Van HoutanEric MailanderBeatriz S. DiasCarol GalginaitisJohn O’SullivanChristopher G. LoweSalvador J. JorgensenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kisei R. Tanaka Kyle S. Van Houtan Eric Mailander Beatriz S. Dias Carol Galginaitis John O’Sullivan Christopher G. Lowe Salvador J. Jorgensen North Pacific warming shifts the juvenile range of a marine apex predator
description	Abstract During the 2014–2016 North Pacific marine heatwave, unprecedented sightings of juvenile white sharks (Carcharodon carcharias) emerged in central California. These records contradicted the species established life history, where juveniles remain in warmer waters in the southern California Current. This spatial shift is significant as it creates potential conflicts with commercial fisheries, protected species conservation, and public safety concerns. Here, we integrate community science, photogrammetry, biologging, and mesoscale climate data to describe and explain this phenomenon. We find a dramatic increase in white sharks from 2014 to 2019 in Monterey Bay that was overwhelmingly comprised of juvenile sharks < 2.5 m in total body length. Next, we derived thermal preferences from 22 million tag measurements of 14 juvenile sharks and use this to map the cold limit of their range. Consistent with historical records, the position of this cold edge averaged 34° N from 1982 to 2013 but jumped to 38.5° during the 2014–2016 marine heat wave. In addition to a poleward shift, thermally suitable habitat for juvenile sharks declined 223.2 km2 year−1 from 1982 to 2019 and was lowest in 2015 at the peak of the heatwave. In addition to advancing the adaptive management of this apex marine predator, we discuss this opportunity to engage public on climate change through marine megafauna.
format	article
author	Kisei R. Tanaka Kyle S. Van Houtan Eric Mailander Beatriz S. Dias Carol Galginaitis John O’Sullivan Christopher G. Lowe Salvador J. Jorgensen
author_facet	Kisei R. Tanaka Kyle S. Van Houtan Eric Mailander Beatriz S. Dias Carol Galginaitis John O’Sullivan Christopher G. Lowe Salvador J. Jorgensen
author_sort	Kisei R. Tanaka
title	North Pacific warming shifts the juvenile range of a marine apex predator
title_short	North Pacific warming shifts the juvenile range of a marine apex predator
title_full	North Pacific warming shifts the juvenile range of a marine apex predator
title_fullStr	North Pacific warming shifts the juvenile range of a marine apex predator
title_full_unstemmed	North Pacific warming shifts the juvenile range of a marine apex predator
title_sort	north pacific warming shifts the juvenile range of a marine apex predator
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/99cd19ca7769485f9173f79a73ce932d
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North Pacific warming shifts the juvenile range of a marine apex predator

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