Improving the statistical power of length estimates of reef fish: a comparison of estimates determined visually by divers with estimates produced by a stereo-video system.

By Euan Harvey, Mark Shortis, David J. Fletcher. 2001

93 citations recorded by the source corpus.

View Paper: https://www.semanticscholar.org/paper/7a0a5d83c6645afca462850a75a65b18b66abe31

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Citations in the corpus

Underwater video techniques for observing coastal marine biodiversity: A review of sixty years of publications (1952–2012) (2014, background): “Stereo-275 video has been shown to provide more accurate estimates of both fish length and distance 276 than visual estimation by divers (Harvey et al., 2001a, 2001b, 2002a, 2004) or single video 277 14 (Harvey et al., 2002b).”
Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia (2009, methodology): “Stereo-video systems can obtain much more accurate and precise measures of the lengths of individual fish than either estimation by divers or single video camera systems (Harvey & Shortis 1996, Harvey et al. 2002).”
Behaviour of temperate and sub-tropical reef fishes towards a stationary SCUBA diver (2007, background): “…that can be measured by the remote stereo–video cameras include accurate and precise estimates of fish length; the closest distance fish will approach the stereo–video cameras (Harvey et al. 2001a, b, 2002, 2004) and measurements of species richness and relative abundance (Watson et al. 2005).”
A comparison of the precision and accuracy of estimates of reef-fish lengths determined visually by divers with estimates produced by a stereo-video system. (2001, background): “…mask which causes objects to be magnifi ed in size by a factor of 1.3 and to appear to be closer to the observer than they actually are; 2 Researchers using SCUBA have been shown to be ineffi cient when performance underwater is compared with similar activities in air (Hollien and Rothman, 1975).”
Potential of video techniques to monitor diversity, abundance and size of fish in studies of Marine Protected Areas (2003, methodology): “…power of 90%), a stereo-video system detected a 15% (~5 cm) difference in the mean length of blue cod (Parapercis colias) in New Zealand with 63% fewer samples than those required by experienced divers (Harvey et al. 2001b), saving both time and money in visual surveys for this sedentary species.”
The accuracy and precision of underwater measurements of length and maximum body depth of southern bluefin tuna (Thunnus maccoyii) with a stereo-video camera system (2003, unknown): “…precise, non-invasive measurements of fish length (Naiberg et al., 1993; Harvey and Shortis, 1996; Li et al., 1996; Petrell et al., 1997; Steeves et al., 1998; Harvey et al., 2001a,b, 2002a) and may have many benefits for managers of wild stock and for aquaculturalists (Harvey et al., 2002b).”
A comparison of visual‐ and stereo‐video based fish community assessment methods in tropical and temperate marine waters of Western Australia (2013, methodology): “Despite the lower detection, this is sufficient replication to obtain the same power to detect changes as when using stereo-DOV to obtain fewer but more precise length estimates (Harvey et al. 2001a, 2001b).”