Early insights into the seasonal and spatial distribution of white sharks (Carcharodon carcharias) along the Maine coastline
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Le résumé fourni par la source
While significant progress has been made to characterize life history patterns, movement ecology, and regional estimates of abundance of white sharks (Carcharodon carcharias) in the Western North Atlantic (WNA), patterns of spatial distribution remain relatively unknown in the northern Gulf of Maine. In this study, we utilize data collected from multiple acoustic telemetry projects from 2012-2023 to assess the spatiotemporal distribution of white sharks along sections of the Maine coastline and regional offshore waters. Acoustic receivers were deployed each year from 2012-2019 (mean number of receivers ± SD: 11 ± 4), and effort increased following the first-ever white shark related fatality in Maine in 2020 (2020-2023: 40 ± 15). In total, 107 white sharks tagged by researchers in the WNA were detected, with the majority (n = 90) detected in shallow (<50 m depth) waters post-2019. Reflective of the tagged population at-large, total length of individuals ranged from 2.1 to 4.9 m, with most individuals estimated to be in the juvenile or subadult life stages. White sharks were detected between the months of May-December, with peaks between July and September, and were observed in close proximity to several of Maine’s western beaches and islands/outcroppings, with higher numbers observed at several sites in eastern Casco Bay. Although the overall quantity of detections was relatively low when compared to white shark aggregation sites in other regions, this study provides baseline information on the presence of this species in the northern Gulf of Maine. While future research should include expanded receiver coverage in eastern Maine and the use of additional tagging technologies, this study contributes early insights for informing marine spatial planning, fisheries management, and conservation strategies for white sharks in the region.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Early insights into the seasonal and spatial distribution of white sharks (Carcharodon carcharias) along the Maine coastline
- Date Crossref
- 03/03/2025
- Éditeur
- Frontiers Media SA
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Maine Department of Marine Resources pays non établi dans la noticeOrganisme public
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Atlantic White Shark Conservancy pays non établi dans la noticeOrganisation à but non lucratif
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University of New England pays non établi dans la noticeUniversité ou école supérieure
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Naval Undersea Warfare Center pays non établi dans la noticeInstitution
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Oregon State University Coastal Oregon Marine Experiment Station pays non établi dans la noticeUniversité ou école supérieure
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NOAA National Marine Fisheries Service pays non établi dans la noticeOrganisme public
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National Oceanic and Atmospheric Administration pays non établi dans la noticeOrganisme public
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Massachusetts Maritime Academy pays non établi dans la noticeUniversité ou école supérieure
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Division of Ecology and the Environment pays non établi dans la noticeInstitution
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School of Marine and Environmental Programs pays non établi dans la noticeUniversité ou école supérieure
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Division Newport pays non établi dans la noticeInstitution
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Atlantic Highly Migratory Species Management Division pays non établi dans la noticeInstitution
Maine Department of Marine Resources, Atlantic White Shark Conservancy et University of New England, avec 9 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.