Report 543 revised version
Analysis of long-term effort-related land-based observations to identify whether coastal areas of harbour porpoise and bottlenose dolphin have persistent high occurrence and abundance
(2015)
Evans, P.G.H., Pierce, G.J., Veneruso, G., Weir, C.R., Gibas, D., Anderwald, P. and Begoña Santos, M.
Under Article 4 of the EU Habitats Directive there is a requirement, where certain conditions are met, to protect bottlenose dolphins and harbour porpoises through the designation of Special Areas of Conservation (SACs) as part of the Natura 2000 network. Since 1965 dedicated shore watches for cetaceans have been conducted at a number of sites around the UK. Over 75,000 hours of watches and c50,000 associated sightings of bottlenose dolphin and harbour porpoise from 678 sites around the coasts of Britain have been analysed. This analysis is aimed at determining whether areas of persistent high occurrence and relative abundance of the two species can be identified.
 

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ISSN 0963 8091
 
Please cite as: Evans, P.G.H., Pierce, G.J., Veneruso, G., Weir, C.R., Gibas, D., Anderwald, P. and Begoña Santos, M., (2015), Analysis of long-term effort-related land-based observations to identify whether coastal areas of harbour porpoise and bottlenose dolphin have persistent high occurrence and abundance, JNCC Report 543 revised version, ISSN 0963 8091