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ORIGINAL RESEARCH article

Front. Fish Sci.
Sec. Elasmobranch Science
Volume 2 - 2024 | doi: 10.3389/frish.2024.1391062

Identifying spatial movements and residency of pelagic thresher sharks (Alopias pelagicus) using satellite and passive acoustic telemetry to inform local conservation in central Indonesia Provisionally Accepted

Rafid A. Shidqi1, 2* Mark Erdmann3 Edy Setyawan4 Nerea Lezama-Ochoa5 Dewi R. Sari2 Abraham B. Sianipar6 Joshua Stewart7 Donald Croll8
  • 1Nicholas School of the Environment, Duke University, United States
  • 2Thresher Shark Indonesia, Indonesia
  • 3Conservation International Aotearoa, New Zealand
  • 4Independent researcher, Indonesia
  • 5Institute of Marine Sciences, Division of Physical & Biological Sciences, University of California, Santa Cruz, United States
  • 6School of Veterinary and Life Sciences, Murdoch University, Australia
  • 7Ocean Ecology Lab, Marine Mammal Institute, College of Agricultural Sciences, Oregon State University, United States
  • 8Department of Ecology and Evolutionary Biology, Division of Physical & Biological Sciences, University of California, Santa Cruz, United States

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The pelagic thresher shark (Alopias pelagicus) is globally endangered, threatened by bycatch, and targeted in industrial and artisanal fisheries in Indonesia. However, a lack of information about their ecology, particularly movement and habitat use, hinders the development of science-based conservation measures to protect the species. Here, we report our research, which is the first to use a combination of satellite and passive acoustic telemetry to investigate the movement and residency of the pelagic thresher shark within Indonesia's waters, especially in areas impacted by local fisheries. A total of 24 sharks were tagged with archival satellite tags (n = 9), internal acoustic tags (n = 10), and both tags (n = 5) in Selat Pantar Marine Protected Area (MPA). The tagged sharks, dominated by

Keywords: endangered species1, Lesser Sunda Islands2, telemetry studies3, Sunda Banda Seascape4, habitat use5, Alor Island6, pelagic thresher shark7, shark conservation8 Not Highlight Formatted: Indent: Left: 0

Received: 24 Feb 2024; Accepted: 30 Apr 2024.

Copyright: © 2024 Shidqi, Erdmann, Setyawan, Lezama-Ochoa, Sari, Sianipar, Stewart and Croll. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Mx. Rafid A. Shidqi, Nicholas School of the Environment, Duke University, Durham, 27708, North Carolina, United States