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Costs and benefits of towed videos and remotely operated vehicles for sampling shallow reef habitats and fish

Citation

Davis, TR and Cadiou, G and Williams, J and Coleman, MA, Costs and benefits of towed videos and remotely operated vehicles for sampling shallow reef habitats and fish, Marine and Freshwater Research, 71, (8) pp. 953-961. ISSN 1323-1650 (2020) [Refereed Article]


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DOI: doi:10.1071/MF19207

Abstract

Where several different tools are available for research, the costs and benefits associated with each option become an important part of the selection process. Towed video (ToV) and remotely operated vehicles (ROVs) are both widely used to assess shallow reef benthic habitats and fish assemblages, but quantitative data on their comparative performance is limited. The relative abilities of commercially available ToV and ROV were assessed using two low-cost (less than A$10 000), manually deployable systems. These systems were deployed to collect photographs of marine habitats and videos of fish assemblages along six 200-m transects at three separate sites. The time required to operate each system and the specific limitations and advantages of each system were compared. Both systems performed equally in terms of the resolution of data collected on benthic habitats and fish assemblages on shallow reefs. However, ToV required significantly less time (~60% less) to collect data than ROV, and should allow cost savings with no loss in data quality. We recommend ToV as a cost-effective and easily deployable system for assessing rocky reef habitats and fish assemblages.

Item Details

Item Type:Refereed Article
Keywords:sampling design, towed video, ROV, kelp, invertebrates, habitat mapping, mapping
Research Division:Environmental Sciences
Research Group:Environmental management
Research Field:Environmental assessment and monitoring
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Assessment and management of coastal and estuarine ecosystems
UTAS Author:Williams, J (Dr Joel Williams)
ID Code:146321
Year Published:2020
Web of Science® Times Cited:4
Deposited By:Ecology and Biodiversity
Deposited On:2021-08-30
Last Modified:2021-09-01
Downloads:0

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