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Studying Chondrichthyans Using Baited Remote Underwater Video Systems: A Review.
Francesco Luigi Leonetti1, Massimiliano Bottaro2, Gianni Giglio1
1Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy.
Animals : an Open Access Journal From MDPI
|July 13, 2024
Summary
Baited Remote Underwater Video Systems (BRUVS) provide a non-invasive method for studying vulnerable cartilaginous fish populations. This review highlights BRUVS
Area of Science:
- Marine Biology
- Fisheries Science
- Conservation Science
Background:
- Cartilaginous fish populations are declining globally due to overfishing and slow reproduction.
- Traditional capture-based surveys pose risks to sharks and rays, impacting their survival.
- Non-invasive survey methods are crucial for effective marine species monitoring and conservation.
Purpose of the Study:
- To conduct a comprehensive review of Baited Remote Underwater Video Systems (BRUVS) applications in studying cartilaginous fish.
- To analyze trends in BRUVS usage, common configurations, and the scope of species and life history aspects studied.
- To assess the contribution of BRUVS to the conservation of endangered and data-deficient chondrichthyan species.
Main Methods:
- Systematic literature review of 81 peer-reviewed papers published between 1990 and 2023.
- Analysis of BRUVS deployment trends, geographical focus, equipment configurations, and bait types.
- Cataloging of chondrichthyan species and life history aspects studied using BRUVS.
Main Results:
- A significant increase in BRUVS utilization for cartilaginous fish research over the past three decades, with notable hotspots in Australia, South Africa, and Central America.
- Common BRUVS setups include benthic deployments, mono-camera systems, and the use of Clupeidae and Scombridae as bait.
- BRUVS have been applied to study 195 chondrichthyan species, providing data on up to thirteen life history aspects, including critical information for endangered species.
Conclusions:
- BRUVS have emerged as a powerful, non-invasive tool for studying diverse aspects of cartilaginous fish biology and ecology.
- The widespread adoption and versatility of BRUVS support effective monitoring and conservation strategies for vulnerable chondrichthyan populations globally.
- Continued application and refinement of BRUVS methodologies will be vital for addressing data gaps and informing conservation actions for these threatened species.
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