Time-Lapse Underwater Photography System with Event Sensor Capability

Lobsiger, U.; Hoar, G.; Johnson, Bruce D.

doi:10.1109/oceans.1986.1160517

Cited by 2 publications

(1 citation statement)

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“…Digital images have been used widely in biological and ecological studies, e.g. as a tool to monitor animal behaviour in Lobsigerl et al (1986), Van Rooij & Videler (1996) and Ishii et al (1998). Magorrian & Service (1998) and Pech et al (2004) used digital imagery to assess and quantify benthic Handling editor: K. Martens Electronic supplementary material The online version of this article (doi:10.1007/s10750-007-9064-7) contains supplementary material, which is available to authorized users.…”

Section: Introductionmentioning

confidence: 99%

The use of digital photography for the definition of coastal biotopes in Azores

et al. 2007

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Sampling benthic communities usually requires intensive field and lab work which is generally performed by skilled staff. In algal dominated communities, like those on the shores of the Azores, biotope characterization studies focused on the more conspicuous algae categories, thus reducing the skills required for species identification. The present study compares in situ quadrat quantifications done by a skilled reader, with computer based quadrat quantifications using digital photographic records of the same areas read in situ, accomplished by skilled and nonskilled readers. The study was conducted inter-and subtidally at various shore heights/depths. Quantification of algal coverage, both in situ and computer based, used the point to point method with quadrats of 0.25 m · 0.25 m for the intertidal, and 0.50 m · 0.50 m for the subtidal surveys, both subdivided into 36 intersection points. Significant differences were found between in situ readings and computer based readings of photographic records conducted both by experienced and inexperienced readers. Biotopes identified using in situ data and image based data differ both for the subtidal and intertidal.

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