Durden, Jennifer M; Gates, Andrew R (2023): Observations of sedimentation near a hydrocarbon drilling site and impacts on a sponge specimen [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955147
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Abstract:
The data consist of hourly observations of sedimentation impacts located approximately 31 m southwest of the drilling location, including measurements of proxies of suspended material in the water column, along with observations of the lamellate desmosponge specimen. Acoustic backscatter (1.9-2.0 MHz) and current speed were measured using a Seaguard RCM DW. A time-lapse camera was also deployed: the Nikon E995 camera was set to F 6.0, ISO 200, exposure 1/60, with photos of 2048 x 1536 pixels. As another estimate of suspended material in the water column, brightness (as mean RGB) was calculated for top corners (256 x 256 pixels) in photos, where the corners were not obscured by fish. Settlement of sediment on the sponge specimen was estimated as brightness of a portion of it (approximately 3600 pixels2) in the images. Movement of the sponge was estimated as the distance between successive xy-positions of the apex of the sponge in images. Mean values (6- and 12-hourly) centred on the hourly data, and sums of distance over 6- and 12-h periods were also calculated.
Supplement to:
Durden, Jennifer M; Clare, Michael A; Vad, Johanne; Gates, Andrew R (2023): First in-situ monitoring of sponge response and recovery to an industrial sedimentation event. Marine Pollution Bulletin, 191, 114870, https://doi.org/10.1016/j.marpolbul.2023.114870
Related to:
Gates, Andrew R; Durden, Jennifer M (2021): SERPENT Activity Report: Lincoln 205/26b-14 and Warwick Crestal. 2019. UK. National Oceanography Centre, Southampton, UK, 40pp., https://nora.nerc.ac.uk/id/eprint/531012
Project(s):
Funding:
Horizon 2020 (H2020), grant/award no. 818123: Integrated Assessment of Atlantic Marine Ecosystems in Space and Time
NERC National Capability Funding, grant/award no. NE/R015953/1: UK NERC Climate Linked Atlantic Sector Science project
Coverage:
Latitude: 60.123740 * Longitude: -4.158010
Date/Time Start: 2019-09-22T12:00:00 * Date/Time End: 2019-11-09T00:00:00
Minimum Elevation: -156.0 m * Maximum Elevation: -156.0 m
Event(s):
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
9829 data points
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