2016 ROV video surveys (Dives 50-51) in a deep-water environment at Hatton Basin (Labrador, Canada) aboard CCGS Amundsen
Ship: CCGS Amundsen CA
Principal Investigator: Edinger, Evan
Start Date: 18-07-2016
End Date: 19-07-2016
Citation: Edinger, E., de Moura Neves, B., Archambault, P., Hillaire-Marcel, C., Sherwood, O., Davin, S., Wareham, V. and Azetsu-Scott, K. (2017) 2016 ROV video surveys (Dives 50-51) in a deep-water environment at Hatton Basin (Labrador, Canada) aboard CCGS Amundsen. Waterloo, Canada: Canadian Cryospheric Information Network (CCIN). Unpublished Data
Abstract: Video surveys were conducted in July 2016 aboard CCGS Amundsen, using a Super Mohawk remotely operated vehicle (ROV) at Hatton Basin, Labrador (Canada). ROV dives occurred at two nearby sites (~28 km apart) in the Hatton Basin area (Dives 50 and 51). The benthic environment was video-recorded and photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels) mounted on the ROV, at depths ranging between 556-633 m. ROV transects were conducted to collect video data, and samples of corals and sponges were also collected during dive 51. Box-cores were deployed at the two sites. Sea water was collected at several depth intervals from surface to near-bottom to characterize particulate organic matter and to determine calcium carbonate saturation. The main purpose of these surveys was to collect data to allow an assessment of invertebrate (e.g. corals and sponges) and fish biodiversity within the Hatton Basin area (Canada). Steep and deep hard-bottom environments are the main focus of the video-surveys, as these environments cannot be sampled effectively using box-cores or trawls. Sampling of deep-water corals and sponges was another objective of the survey at this site.