Preliminary results on automated video-imaging for the study of behavioural rhythms of tubeworms from the tempo-mini ecological module (Neptune, Canada)

Type Article
Date 2013-03-13
Language English
Other localization http://upcommons.upc.edu/handle/2099/13906
Author(s) Aron M., Cuvelier D., Aguzzi J., Costa C., Doya C., Sarrazin Jozee1, Sarradin Pierre-Marie1
Affiliation(s) 1 : Ifremer, france
Meeting Martech 2013 5th International Workshop on Marine Technology, Girona, Spain
Source Instrumentation Viewpoint (1886-4864) (SARTI), 2013-03-13 , N. 15 , P. 35-37
Keyword(s) Cabled observatories, TEMPO-mini, NEPTUNE, time lapse photograpHY, Automated video imaging, tube worms rhythms
Abstract The presence of behavioural rhythms has been studied in organisms of coastal areas in relation to circadian and tidal cycles, but their presence in benthic fauna inhabiting dark deep-sea regions remains largely unknown. Cabled video-observatories allow the study of these activity rhythms via the acquisition of pictures or footages over extended periods of time. In this work, we present the preliminary steps in the automation of biological data extraction for the determination of deep-sea fauna activity rhythms with TEMPO-mini (NEPTUNE; Canada). Automated analyses of tube worm behaviour were carried out with the Hough transform algorithm. Some different testing parameters were applied to the same image with siboglinid tubes. Tube openings identifications showed to be difficult, since circle placing was in some cases attributed to animals. The future step of automation will be to run the Hough transform algorithm within sub Region of Interests were tube identifications is the most efficient as we identified with this preliminary screening. Then, we will focus on each singe individual producing time series in terms of opening identification (as marker of moments of animals’ retractions) per unit of time (e.g. 10 min).
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Aron M., Cuvelier D., Aguzzi J., Costa C., Doya C., Sarrazin Jozee, Sarradin Pierre-Marie (2013). Preliminary results on automated video-imaging for the study of behavioural rhythms of tubeworms from the tempo-mini ecological module (Neptune, Canada). Instrumentation Viewpoint, (15), 35-37. Open Access version : https://archimer.ifremer.fr/doc/00287/39835/