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Formal report series, containing results of research and monitoring carried out by Marine Scotland Science

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EMEC Billia Croo Wave Test Site: Wildlife Observations Project Annual Report

Scottish Marine and Freshwater Science Vol 5 No 8

A key concern expressed by policy makers, regulators and environmental stakeholders about deployment of marine energy devices in open waters relates to the possibility of negative impacts they may have on marine mammals and diving birds. The potential for direct collision with such devices, or harmful effects caused by their presence, including the potential for displacement of marine wildlife from habitual waters, are issues which need to be addressed. In order to get as accurate a picture as possible about the presence and behaviour of marine wildlife in the vicinity of operating devices, data needs to be collected both underwater and at the sea surface. The current wildlife observation programme underway at the European Marine Energy Centre (EMEC) in Orkney gathers surface-visible wildlife information across EMEC?s grid-connected and nursery test sites, and the data gathered can be used to inform regulatory decisionmaking, as well as in guiding developers? device-specific wildlife monitoring programmes. Activities of the wildlife observation programme underway at EMEC are overseen by the EMEC Monitoring Advisory Group (MAG), whose membership includes representatives from Marine Scotland Science, Marine Scotland Licencing Operations Team, Marine Scotland Compliance, Scottish Natural Heritage, Scottish Government, and the Sea Mammal Research Unit at the University of St Andrews. The Billia Croo wildlife observation project commenced in July 2005, with the Scottish Government funding the current contract. During the period 1 April 2013 to 31 March 2014, a total of 886 hours of observations were completed. Observations at the site for this reporting period have shown seasonal peaks in grey and harbour seal abundances corresponding with pupping seasons, which is mirrored in the data collected to date at the site. During this reporting period the majority of cetacean sightings have been of White-beaked Dolphin, whereas typically the most sighted cetacean is Harbour Porpoise. A typically diverse range of marine birds has also been observed, although for several species, numbers in April and May 2013 fell below the mean. This could be due to the enduring winter of 2012/2013 and resultant late spring experienced in Orkney as was the case for the rest of the UK. Detailed analysis of the data collected is outwith the scope of this project; however a separate project, funded by Marine Scotland and Scottish National Heritage, has been established to carry out an in-depth analysis of the data.

doi: 
10.7489/1498-1
Citation: 
European Marine Energy Centre (EMEC). 2014. EMEC Billia Croo Wave Test Site: Wildlife Observations Project Annual Report. Scottish Marine and Freshwater Science Vol 5 No 8. Edinburgh: Scottish Government, 18pp. DOI: 10.7489/1498-1
FieldValue
Publisher
Modified Date
2014-12-12
Release Date
2014-10-17
Identifier
5c314861-e830-4207-9f20-1d9de10220e5
Spatial / Geographical Coverage Location
Scotland
Temporal Coverage
Monday, April 1, 2013 - 00:00 to Monday, March 31, 2014 - 00:00
License
UK Open Government Licence (OGL)
Data Dictionary

Due to the featureless nature of the Billia Croo test site area, a grid-based recording system as used at the other sites within the EMEC wildlife observation programme was deemed unsuitable for this project. Instead the survey area is defined as a hemispherical shape extending offshore from the observation point. This area encompasses the whole of the Billia Croo test site and its surrounding area, extending to approximately 5km from shore (this is around the sighting limit for small cetaceans from a cliff-top at the height of the observation point). The angle of declination and horizontal angle from the viewing tripod are used, together with information on tidal height, to estimate the geographical location of species sighted.

Contact Name
Marine Scotland Science Enquiries
Contact Email
Public Access Level
Public