Details of 2011, Envision, Isle of Lewis Wave Array,Benthic Survey


Dataset identification

Title of dataset2011, Envision, Isle of Lewis Wave Array,Benthic Survey
Narrative summary of datasetLewis Wave Power Ltd. (LWP) (a wholly owned subsidiary of Aquamarine Power Ltd.) was seeking to develop a wave energy demonstration array off the west coast of the Isle of Lewis. As a first stage of the Environmental Impact Assessment (EIA) for the project, LWP commissioned Royal Haskoning Ltd. to produce an Environmental Scoping Report (Lewis Wave Power Ltd., 2011) to facilitate the identification and assessment of the potential environmental impacts associated with the project. The survey reported on here formed this field-based benthic component. Its purpose was to provide site-specific benthic data to inform an assessment of impact of the proposed development. The key objectives were to: Determine the distribution and abundance of marine habitats and communities within the study areas; Determine the substrate type at all locations sampled and Identify habitats or species of conservation importance.
Summary of processing methodologyA field sampling strategy was created and approved Aquamarine Ltd. Transects were run roughly perpendicular to the shoreline (from shallow to deep water), transects were also placed equidistant over the sites with four video drops along each transect. Short camera drops with a small robust CCTV bullet camera system was used to withstand the rugged conditions at the survey site. Each video drop was recorded using a Sony DV tape recorder and time at the start and end of each deployment were logged. Positions were recorded using a differentially corrected GPS (dGPS) system (with a published accuracy of = 1m). These were displayed on the video. Depths were also noted for each video drop. The Transect survey areas were represented with line data and specific drop camera points are recorded using point data within GIS.
Start date2011-08-23
End date2011-08-30
Frequency of observationsday to sub-week

Responsible organisations

CountryUnited Kingdom
Organisation nameThe Crown Estate
Role of organisationPublisher
CountryUnited Kingdom
Organisation nameEnvision Marine Ltd
Role of organisationOriginator of Dataset
CountryUnited Kingdom
Organisation nameAquamarine Power Ltd
Role of organisationDataset Holding Organisation

Dataset availability

Original dataset download link
Dataset formatDatabase
Geographic Information System
Public accessNo limitations
License for useODC-ODbL


Latitude north boundary59.162
Longitude east boundary-3.212
Latitude south boundary59.001
Longitude west boundary-3.385
Sea areaNorth Atlantic Ocean
Celtic Sea

Data types, collection and processing

Observation typeBiota composition
Biota abundance, biomass and diversity
Human activity
Area Management/Designation
ParameterWave energy facility location
Habitat characterisation
Habitat extent
Instrument typeunderwater cameras
Argos GPS-localised transmitters
Platform typeself-propelled boat
Platform nameMV LochLann

Process information

Submitting organisationJoint Nature Conservation Committee, Peterborough Office
Submission identifier (UUID)30494685-d2ab-42b3-acd1-026005ee50c7
Date of dataset creation2015-10-28
Date of dataset revision2021-10-01
Date of metadata creation2021-10-01
Date of metadata latest revision2021-10-06
Date of publishing2021-10-12
Processing data centreJoint Nature Conservation Committee, Peterborough Office
Summary record-ID943