52991d36-eb97-436a-a1c5-70e44253b144 English dataset 52991d36-eb97-436a-a1c5-70e44253b144 Marine Data JNCC Joint Nature Conservation Committee, Peterborough Office marinedata@jncc.gov.uk pointOfContact 2025-07-29 MEDIN 3.1.2 EPSG Geodetic Parameter Registry 2021-01-06 revision WGS 84 2024 Marine Natural Capital and Ecosystem Assessment programme (mNCEA) St Kilda survey: Imagery data COR0924 2025-07-29 publication COR0924 The Joint Nature Conservation Committee (JNCC), in collaboration with the Agri-Food and Biosciences Institute (AFBI), conducted an offshore seabed survey on the Scottish Continental Shelf (OSPAR Region III - Celtic Seas) in September / October 2024, under the marine Natural Capital and Ecosystems Assessment (mNCEA) programme. Imagery data (video and still images) were collected using a Cathx R300 camera camera system mounted on a camera sledge at St Kilda and Stanton banks and a drop camera frame at stations in Stanton banks survey area. The video data has been analysed for habitats and species and is undergoing QA/QC. This data will be made available via DASSH in due course. The stills data has not yet been analysed. Department for Environment, Food and Rural Affairs helpline@defra.gsi.gov.uk owner Marine Data JNCC Joint Nature Conservation Committee, Peterborough Office Data manager marinedata@jncc.gov.uk custodian Marine Data JNCC Joint Nature Conservation Committee, Peterborough Office Data manager marinedata@jncc.gov.uk originator Marine Data JNCC Joint Nature Conservation Committee, Peterborough Office Data manager marinedata@jncc.gov.uk distributor asNeeded Marine Environmental Data and Information Network MEDIN metadata record availability 2025-07-29 revision Habitats and biotopes Protected sites Species distribution GEMET - INSPIRE themes, version 1.0 2021-09-28 revision Habitat characterisation Habitat extent Seabed photography SeaDataNet Parameter Discovery Vocabulary 2021-09-28 revision otherRestrictions Data is made available under Open Government Licence v3 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) otherRestrictions Data is freely available provided appropriate attribution statements are used to acknowledge the data providers in onward publications. English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 biota environment geoscientificInformation oceans -8.900000 -4.860839 54.250980 57.740378 SeaVox salt and freshwater body gazetteer 2021-01-06 creation Inner Seas off the West Coast of Scotland SeaVox salt and freshwater body gazetteer 2021-01-06 creation Irish Sea SeaVox salt and freshwater body gazetteer 2021-01-06 creation Northeast Atlantic Ocean (40W) Charting Progress 2 Sea Areas 2021-01-06 creation Irish Sea Charting Progress 2 Sea Areas 2021-01-06 creation Minches and Western Scotland Charting Progress 2 Sea Areas 2021-01-06 creation Scottish Continental Shelf ICES Statistical Areas 2021-01-06 creation VIa ICES Statistical Areas 2021-01-06 creation VIIa 2024-09-27 2024-10-11 SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision unknown Image Movie Documents Delimited dataset MEDIN data guideline for video surveys of species and benthos 2018-01-23 publication Data should be compliant with this standard true Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication Not evaluated A camera sledge frame and drop frame camera were used on this survey. Both frames were mounted with the same camera system and ~24 hours were required to swap camera systems between the two frames. For both camera frames video and still imagery was recorded using a Cathx R300 camera, with the image illuminated using 4 lamps, and scaling provided by two red point lasers. Lense: F2.0, 17.2 mm. Video was recorded at 30 fps in a .avi format. Five JPEG screenshots were collected from the video feed every second. Camera sledge: The Cathx R300 camera was mounted on the sledge frame at a 45 degree angle with the centre of the lens at a height of 750 mm, when measured from the deck. Lasers were set at 862 mm to create a “gate” that can be used to more accurately record densities of objects that pass between the laser points. The camera sledge was deployed from the stern of RV Corystes and towed along the seabed at a target speed of 08 – 1 knots for 15 minutes. A USBL positioning system was used to record an accurate position of the sledge. Drop frame: The Cathx R300 camera was mounted on the drop frame at a 65.5 degree angle with the centre of the lens at a height of 465 mm, when measured from the deck . Lasers were set at 200 mm. The drop frame camera was deployed from the side of RV Corystes and towed along the seabed at a target speed of 08 – 1 knots for 15 minutes. No USBL positioning was available for the drop frame, and the position of the camera is assumed to be closer to the position of the vessel for the deployment of this equipment. Video Analysis: The drop frame camera data analysis was undertaken by SeaStar Survey Ltd and analysis of the Camera Sledge data by APEM Ltd. The image annotation platform BIIGLE was used. Analysis and internal/external QA was conducted in line with the North-East Atlantic Marine Biological Analytical Quality Control schemes (NMBAQC) Epibiota interpretation guidelines (Turner et al. 2016) and Epibiota Quality Assurance (EQA) framework and according to a specification set out by JNCC. Results were provided in a MEDIN compliant Excel proforma spreadsheet and have undergone further internal QC by JNCC. The still images have not yet been analysed