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

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. Th...

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Autores principales: Tanaka, Kisei R., Van Houtan, Kyle S., Mailander, Eric, Dias, Beatriz S., Galginaitis, Carol, O’Sullivan, John, Lowe, Christopher G., Jorgensen, Salvador J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873075/
https://www.ncbi.nlm.nih.gov/pubmed/33564038
http://dx.doi.org/10.1038/s41598-021-82424-9
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author Tanaka, Kisei R.
Van Houtan, Kyle S.
Mailander, Eric
Dias, Beatriz S.
Galginaitis, Carol
O’Sullivan, John
Lowe, Christopher G.
Jorgensen, Salvador J.
author_facet Tanaka, Kisei R.
Van Houtan, Kyle S.
Mailander, Eric
Dias, Beatriz S.
Galginaitis, Carol
O’Sullivan, John
Lowe, Christopher G.
Jorgensen, Salvador J.
author_sort Tanaka, Kisei R.
collection PubMed
description 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 km(2) 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.
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spelling pubmed-78730752021-02-10 North Pacific warming shifts the juvenile range of a marine apex predator Tanaka, Kisei R. Van Houtan, Kyle S. Mailander, Eric Dias, Beatriz S. Galginaitis, Carol O’Sullivan, John Lowe, Christopher G. Jorgensen, Salvador J. Sci Rep Article 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 km(2) 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. Nature Publishing Group UK 2021-02-09 /pmc/articles/PMC7873075/ /pubmed/33564038 http://dx.doi.org/10.1038/s41598-021-82424-9 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Tanaka, Kisei R.
Van Houtan, Kyle S.
Mailander, Eric
Dias, Beatriz S.
Galginaitis, Carol
O’Sullivan, John
Lowe, Christopher G.
Jorgensen, Salvador J.
North Pacific warming shifts the juvenile range of a marine apex predator
title 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_short 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
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873075/
https://www.ncbi.nlm.nih.gov/pubmed/33564038
http://dx.doi.org/10.1038/s41598-021-82424-9
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