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February 8, 2026SHILAP Revista de lepidopterologíaOpen Access

Stereo videography reveals fragility in a high value thresher shark population

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Authors

AGAlp GokgozUniversity of ChesterSOSimon P. OliverUniversity of ChesterJBJames G. Brown

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Implication

Stereo videography demonstrates population vulnerability of pelagic thresher sharks, indicating conservation needs.

Key Points

  • To assess the population dynamics and sustainability of pelagic thresher sharks using innovative stereo videography.
  • Deployed a remote stereo camera system (stereocam) in the Central Visayan Sea
  • Conducted surveys over a 4-month period from December 2019 to March 2020
  • Measured maturity of male and female sharks through morphometric observations
  • Constructed a demographic model using life history parameter estimates
  • Model projections indicate vulnerability to a fishing mortality of 5.3% per year
  • Removal of 15–18 females could lead to a population decline
  • First characterization of demographics of pelagic thresher sharks via stereo videography

Cite This Study

Gokgoz et al. (2026) studied this question.

synapsesocial.com/papers/698827570fc35cd7a8845f63https://doi.org/10.3389/fmars.2025.1696369
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Age, Growth, and Reproduction of the Pelagic Thresher Shark, Alopias pelagicus in the Northwestern Pacific1999 · 120 citations
  2. 2Sexual segregation of pelagic sharks and the potential threat from fisheries2009 · 217 citations
  3. 3A comparison of calibration methods and system configurations of underwater stereo-video systems for applications in marine ecology2015 · 96 citations
  4. 4Estimating Finite Rate of Population Increase for Sharks Based on Vital Parameters2015 · 33 citations