Megafauna of Vestbrona Carbonate Field and surrounding benthos from seafloor mosaics
Citation
Sinner M, Sen A, Hong W L, Michel L, Vadakkepuliyambatta S, Knies J (2023). Megafauna of Vestbrona Carbonate Field and surrounding benthos from seafloor mosaics. Version 1.0. The University Centre in Svalbard. Samplingevent dataset. https://ipt.gbif.no/resource?r=vestbrona_carbonate_field_megafauna_seafloor_mosaics&v=1.0 https://doi.org/10.15468/5vrbbj accessed via GBIF.org on 2024-08-26.Description
This dataset consists of benthic fauna and features from the Vestbrona Carbonate Field and the adjacent seafloor. The Vestbrona Carbonate Field (VCF) seep site on the Norwegian continental shelf (270 m water depth) was video surveyed with the Remotely Operated Vehicle Ægir 6000 in June 2020. Using extracted images and navigation data, two georeferenced seafloor mosaics were generated and all visible features were enumerated in ArcMap (animals, substrates, litter). Three transects just outside the VCF seep were also surveyed and fauna and seafloor features in those transects were also enumerated. The data were used in Sinner et al. 2023 Frontiers in Earth Sciences 'Lack of detectable chemosynthesis at a sponge dominated subarctic methane seep.'Sampling Description
Study Extent
Seafloor at the Vestbrona Carbonate Field seep site (Norwegian continental shelf): 2 mosaicked areas of 679.09 sq. m and 562.97 sq. m. Seafloor adjacent to the Vestbrona Carbonate Filed seep site: 3 transects of 129.87 sq. m, 58.06 sq. m and 87.36 sq. mSampling
Georeferenced mosaics from the VCF seep site were generated using extracted images from the Ægir 6000 remotely operated vehicle (ROV) with the camera facing downwards (perpendicular to seafloor) through the Agisoft Metashape software. All features were then digitized in ArcMap and numbers and areas were exported from ArcMap. Transects from outside the VCF seep site were based on downwards but slightly forward tilted camera on the ROV, and all features were enumerated from them. Details are in Sinner at al. 2023 Frontiers in Earth Science, 'Lack of detectable chemosynthesis at a sponge dominated subarctic methane seep.'Method steps
- Seafloor video survey with the remotely operated vehicle (ROV) Ægir 6000 using an HD camera Image extraction with ffmpeg. Mosaic construction with Agisoft Metashape Digitization and enumeration of all features in ArcMap Pro.
Taxonomic Coverages
Geographic Coverages
Norwegian continental shelf (approx. 63°N, 6.5°E)
Bibliographic Citations
- Sinner M, Hong W L, Michel L, Vadakkepuliyambatta S, Knies J, Sen A (2023) Lack of detectable chemosynthesis at a sponge dominated subarctic methane seep. Frontiers in Earth Science. -
Contacts
Melina Sinneroriginator
position: student
University of Southampton, University of Basque Country, University of Liège
Arunima Sen
originator
position: Associate Professor
The University Centre in Svalbard (UNIS), Nord University
Arunima Sen
metadata author
position: Associate Professor
The University Centre in Svalbard (UNIS), Nord University
Melina Sinner
metadata author
position: student
University of Southampton, University of Basque Country, University of Liège
Wei Li Hong
metadata author
position: Associate Professor
Stockholm University
Loïc Michel
metadata author
position: Associate Professor
University of Liège, Ifremer
Sunil Vadakkepuliyambatta
metadata author
position: Scientist
National Centre for Polar and Ocean Research (NCPOR)
Jochen Knies
metadata author
position: Senior Scientist
Geological Survey of Norway (NGU), iC3: The Centre for ice, Cryosphere, Carbon and Climate
Arunima Sen
user
email: arunimas@unis.no
Arunima Sen
administrative point of contact
position: Associate Professor
The University Centre in Svalbard (UNIS), Nord University