Diving into the vertical dimension of elasmobranch movement ecology

Sims, DW, Humphries, NE, Southall, EJ, Andrzejaczek, S and Curnick, DJ 2022 Diving into the vertical dimension of elasmobranch movement ecology. Science Advances, 8 (33), eaho1754. https://doi.org/10.1126/sciadv.abo1754

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Official URL: https://www.science.org/doi/10.1126/sciadv.abo1754


Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements.

Item Type: Publication - Article
Additional Keywords: Scalloped Hammerhead Shark, Western North Pacific, Reproductive Biology, Sphyrna-Lewini, Habitat Use, Carcharhinus-Falciformis, Sexual Segregation, Violacea Bonaparte, Galeocerdo-Cuvier, Pelagic Stingray
Subjects: Biology
Ecology and Environment
Marine Sciences
Divisions: Marine Biological Association of the UK > Ocean Biology
Depositing User: Tamar Atkinson
Date made live: 07 Sep 2022 11:07
Last Modified: 09 Feb 2024 16:54
URI: https://plymsea.ac.uk/id/eprint/9791

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