Sea-floor images from during POLARSTERN cruise ANT-XV/3 to the Weddell Sea, Antarctica ...

• Main Authors: Gutt, Julian, Teixidó, Núria
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2004
• Subjects: Photo sledge; Remote operated vehicle SPRINT 103; Multiple investigations; ANT-XV/3; Polarstern; Archive of Underwater Imaging AUI; Ecology of the Antarctic Sea Ice Zone EASIZ; Antarc*; Antarctic; Antarctica; Sea ice; Weddell Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.755491; https://doi.pangaea.de/10.1594/PANGAEA.755491

Transects of a Remotely Operated Vehicle (ROV) providing sea-bed videos and photographs were carried out during POLARSTERN expedition ANT-XV/3 focussing on the ecology of benthic assemblages on the Antarctic shelf in the South-Eastern Weddell Sea. The ROV-system sprint 103 was equiped with two video- and one still camera, lights, flash-lights, compass, and parallel lasers providing a scale in the images, a tether-management system (TMS), a winch, and the board units. All cameras used the same main lense and could be tilted. Videos were recorded in Betacam-format and (film-)slides were made by decision of the scientific pilot. The latter were mainly made under the aspect to improve the identification of organisms depicted in the videos because the still photographs have a much higher optical resolution than the videos. In the photographs species larger than 3 mm, in the videos larger than 1 cm are recognisable and countable. Under optimum conditions the transects were strait; the speed and direction of the ...