ImagDOP Benthic Video Annotations in Condor seamount in 2010

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Annotations of benthic sessile and mobile species recorded on video by Remote Operated Vehicle (ROV) during dives performed in the Condor seamount, located 10 nm SW of Faial Island, in the Azores archipelago, Portugal. Videos were recorded between 180 and 1100 meters depth.

Several ROV dives in 2010 collected imagery date between 180 and 1100 meters depth, extending from the summit to the lower slope of the Condor seamount. Benthic sessile and mobile megafauna of conspicuous morphotype, or larger than circa 10 cm, as well as all icthyofauna present, was logged on to a database with the customizable video annotation software COVER (Ifremer). The ROV SP ( SeaBotix LBV300S-6 ; IMAR-DOP/Uaz), was operated from the R/L Águas Vivas . The ROV was equipped with a colour camera (570 line/02 Lux, 4:3), with four lights installed externally on the four front corners (480 Lumen each) and a scaling two-point laser system (5 cm apart) that was used to estimate sizes. ROV SP was positioned with a Subsea Micron Nav USBL (Ultra Short Baseline) unit fitted onto the vehicle in the transponder mode. The navigational data were manually filtered for outliers and smoothed with a moving average, to remove false loops. The moving average allowed adjusting the resulting dive track (Gomes-Pereira and Tempera 2015). For more detailed information on the daataset please contact data owner (zn.multimedia@gmail.com).

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