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Comparing towed and baited underwater video techniques for assessing temperate marine fishes

conference contribution
posted on 2023-05-24, 17:42 authored by Jacquomo MonkJacquomo Monk, Ierodiaconou, D, Versace, VL, Rattray, A, Stagnitti, F, Harvey, E
Accurate estimates of fish species occurrence are important to any species’ assessments and distribution model. With increasing emphasis on non-destructive sampling, underwater video techniques are commonly used without a thorough understanding of their advantages and disadvantages. This study compared data collected from baited remote underwater stereo-video systems (stereo BRUVS) and towed-video systems to determine; (1) the differences between these video techniques in terms of fish assemblages, functional groups (i.e. pelagic carnivore, epibenthic carnivore/omnivore or herbivore) and observability (i.e. conspicuous or cryptic), and (2) what impact do these two techniques have on the interpretation of spatially-explicit, predictive models. We found stereoBRUVS and towed-video techniques recorded very different assemblages, functional groups and observability categories across structurally complex benthic biological habitats (i.e. macroalgae dominated habitats). However, as the habitat complexity became less (e.g. seagrass and areas with no visible macro-biota) both techniques appeared to provide similar fish assemblage information. We also found considerable differences in the predicted extents of habitat suitability between the two video techniques.


Publication title

GEOHAB 2011 Program


Institute for Marine and Antarctic Studies

Event title


Event Venue

Helsinski, Finland

Date of Event (Start Date)


Date of Event (End Date)


Repository Status

  • Restricted

Socio-economic Objectives

Marine biodiversity

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    University Of Tasmania