A video-survey using a Super Mohawk remotely operated vehicle (ROV) was conducted in October 2015 near Qikiqtarjuaq, Nunavut. The benthic environment was video-recorded and opportunistically photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels), at a depth of ~620-680 m along a transect line 954m long.

In July 2014 and October 2015 a Super Mohawk (SuMo) remotely operated vehicle (ROV) aboard the CCGS Amundsen was used to video-survey a deep-water environment at Scott Inlet. In 2014, a video-transect ~2.7 km long was followed across depths of 475-650 m. Videos and photographs were obtained using a high-definition camera, and specimens of invertebrates (sponges) were collected using the ROV. In 2015, no transect was followed and the main objective was to sample carnivorous sponges using a sampling platform.

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.

A benthic survey using a Super Mohawk remotely operated vehicle (ROV) was conducted in July 2017 at Disko Fan, SE Baffin Bay. The benthic environment was video-recorded and opportunistically photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels), at a water depth of ~930 m. An experimental frame deployed in 2016 was recovered during this ROV dive, but no other collections took place at this site during this dive.

A video-survey using a Super Mohawk remotely operated vehicle (ROV) was conducted in October 2015 at Inner Frobisher Bay, Nunavut. The benthic environment was video-recorded and opportunistically photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels), at a depth of ~59-139 m along a transect line 1.2 km long.

A video-survey using a Super Mohawk remotely operated vehicle (ROV) was conducted in October 2015 in a site near Cape Dyer, Nunavut. The benthic environment was video-recorded and opportunistically photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels), at a depth of ~750 m along a transect line 935 m long.

The ROV dive at this site was aborted after 35 minutes underwater due to strong winds.

Two video surveys were conducted in July 2016 at Disko Fan (South East Baffin Bay, Nunavut, Canada) using a Super Mohawk remotely operated vehicle (ROV) aboard CCGS Amundsen. The benthic environment was video-recorded and photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels), at a depth range of 888-941 m. Sites suitable for the deployment of box-cores and piston-cores were identified from the videos during the first survey, samples of corals, sponges and a zoanthid were collected (N= 13), and a video transect was conducted. Sea water was collected at several depth intervals from surface to near-bottom to determine calcium carbonate saturation.

A remotely operated vehicle (ROV) video survey was conducted at the NE Hatton Sill location, at a depth of ~620 m in August 2018. The primary purpose of the ROV dive at this location was to obtain video-transect data for species composition determination, site characterization and depth distribution of corals and sponges, and to collect live and dead corals and sponges. Bottom type was mainly sand and gravel with occasional boulders. Semi-consolidated sand was observed at various points within the dive. Corals observed during this dive include Primnoa resedaeformis (including dead skeletons), soft corals, mushroom corals (e.g. Anthomastus sp.), Paramuricea sp., Radicipes sp., sea pens, sponges including Asconema spp. and Geodia spp.

A video-survey using a Super Mohawk remotely operated vehicle (ROV) was conducted in July 2017 at Lancaster Sound, Nunavut. The benthic environment was video-recorded and opportunistically photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels), at ~740 m. The ROV recorded transect data for approximately 1 km over a level muddy sand bottom with abundant Umbellula sea pens, Chondrocladia sp. carnivorous sponges, small Virgularia sp. sea pens, and common other sessile, sedentary and mobile epifauna and infauna including cerianthids, sea anemones, large Gorgonocephalus sp., and two common ophiuroid species, small holothurians and sea stars. The most common fish were eelpouts (Lycodes sp.), although several other types of fish were observed. Depth change over the 1 km transect was less than 10 m.