Videos and still images of the seabed from the 2017 survey of Grenada and the Grenadines Islands in the Caribbean

• Published by: Marine Environmental Data & Information Network
• Last updated: 10 September 2024
• Topic: Not added
• Licence: Other Licence ; View licence information

Summary

As part of the Commonwealth Marine Economies Programme (CMEP) Cefas collected 87 drop camera video tows of the seabed on the southern and western sides of the island of Grenada and around the Carriacou and the Grenadines Islands. These videos of the seabed were to characterise the benthic fauna within the area and support the creation of benthic habitat maps from UKHO lidar data. The videos and still images were acquired during the 2017 survey using a lightweight drop camera frame with two GoPros simultaneously collecting stills and video data. Two lasers were fitted for scaling images and additional lighting provided real colour images of the seabed. The drop camera frame was lowered to the seabed by hand from a vessel, with the video monitored to maintain a consistent height above the seabed. Tows were 15 minutes long with the vessel drifting in neutral so the distance covered in each tow varied. Sample depths ranged from 3-40 m and covered a range of habitats including bare sediment, seagrass, and coral and sponge dominated reefs. Still images were acquired every minute at a point when the seabed was clearly in focus.

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Data links

Link to the data	Format	File added	Data preview
Cefas Data Portal	N/A	10 September 2024	Not available

Additional information

View additional metadata

• Added to data.gov.uk: 2024-03-27
• Access contraints: Not specified
• Harvest GUID: CEFASa96617a7-06ad-4706-a0ab-cc31f89f9b0a
• Extent: Latitude: 20.00° to 10.00°
• Extent: Longitude: -70.00° to -60.00°
• Dataset reference date: 2021-07-21 (publication)
• Dataset reference date: 2024-03-27 (revision)
• Dataset reference date: 2021-07-16 (creation)
• Frequency of update: notPlanned
• Responsible party: Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) (originator, custodian, distributor)
• ISO 19139 resource type: dataset
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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