Recent expansion of marine protected areas matches with home range of grey reef sharks

Abstract Dramatic declines in reef shark populations have been documented worldwide in response to human activities. Marine Protected Areas (MPAs) offer a useful mechanism to protect these species and their roles in coral reef ecosystems. The effectiveness of MPAs notably relies on compliance togeth...

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Autores principales:	Lucas Bonnin, David Mouillot, Germain Boussarie, William D. Robbins, Jeremy J. Kiszka, Laurent Dagorn, Laurent Vigliola
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e5edd8a64dfc447bb712e9a8edc4f2ab
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spelling	oai:doaj.org-article:e5edd8a64dfc447bb712e9a8edc4f2ab2021-12-02T16:14:47ZRecent expansion of marine protected areas matches with home range of grey reef sharks10.1038/s41598-021-93426-y2045-2322https://doaj.org/article/e5edd8a64dfc447bb712e9a8edc4f2ab2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93426-yhttps://doaj.org/toc/2045-2322Abstract Dramatic declines in reef shark populations have been documented worldwide in response to human activities. Marine Protected Areas (MPAs) offer a useful mechanism to protect these species and their roles in coral reef ecosystems. The effectiveness of MPAs notably relies on compliance together with sufficient size to encompass animal home range. Here, we measured home range of 147 grey reef sharks, Carcharhinus amblyrhynchos, using acoustic telemetry in New Caledonia. The distribution of home range was then compared to local MPA sizes. We report a home range of 12 km2 of reef for the species with strong differences between adult males (21 km2), adult females (4.4 km2) and juveniles (6.2 km2 for males, 2.7 km2 for females). Whereas local historic MPA size seemed adequate to protect reef shark home range in general, these were clearly too small when considering adult males only, which is consistent with the reported failure of MPAs to protect sharks in New Caledonia. Fortunately, the recent implementation of several orders of magnitude larger MPAs in New Caledonia and abroad show that recent Indo-Pacific MPAs are now sufficiently large to protect the home ranges of this species, including males, across its geographical range. However, protection efforts are concentrated in a few regions and cannot provide adequate protection at a global scale.Lucas BonninDavid MouillotGermain BoussarieWilliam D. RobbinsJeremy J. KiszkaLaurent DagornLaurent VigliolaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lucas Bonnin David Mouillot Germain Boussarie William D. Robbins Jeremy J. Kiszka Laurent Dagorn Laurent Vigliola Recent expansion of marine protected areas matches with home range of grey reef sharks
description	Abstract Dramatic declines in reef shark populations have been documented worldwide in response to human activities. Marine Protected Areas (MPAs) offer a useful mechanism to protect these species and their roles in coral reef ecosystems. The effectiveness of MPAs notably relies on compliance together with sufficient size to encompass animal home range. Here, we measured home range of 147 grey reef sharks, Carcharhinus amblyrhynchos, using acoustic telemetry in New Caledonia. The distribution of home range was then compared to local MPA sizes. We report a home range of 12 km2 of reef for the species with strong differences between adult males (21 km2), adult females (4.4 km2) and juveniles (6.2 km2 for males, 2.7 km2 for females). Whereas local historic MPA size seemed adequate to protect reef shark home range in general, these were clearly too small when considering adult males only, which is consistent with the reported failure of MPAs to protect sharks in New Caledonia. Fortunately, the recent implementation of several orders of magnitude larger MPAs in New Caledonia and abroad show that recent Indo-Pacific MPAs are now sufficiently large to protect the home ranges of this species, including males, across its geographical range. However, protection efforts are concentrated in a few regions and cannot provide adequate protection at a global scale.
format	article
author	Lucas Bonnin David Mouillot Germain Boussarie William D. Robbins Jeremy J. Kiszka Laurent Dagorn Laurent Vigliola
author_facet	Lucas Bonnin David Mouillot Germain Boussarie William D. Robbins Jeremy J. Kiszka Laurent Dagorn Laurent Vigliola
author_sort	Lucas Bonnin
title	Recent expansion of marine protected areas matches with home range of grey reef sharks
title_short	Recent expansion of marine protected areas matches with home range of grey reef sharks
title_full	Recent expansion of marine protected areas matches with home range of grey reef sharks
title_fullStr	Recent expansion of marine protected areas matches with home range of grey reef sharks
title_full_unstemmed	Recent expansion of marine protected areas matches with home range of grey reef sharks
title_sort	recent expansion of marine protected areas matches with home range of grey reef sharks
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e5edd8a64dfc447bb712e9a8edc4f2ab
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Recent expansion of marine protected areas matches with home range of grey reef sharks

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