Skip to main content

Analysis of The Crown Estate aerial survey data for marine mammals for the FTOWDG region

Abstract

The Crown Estate (TCE) commissioned a series of aerial surveys of offshore wind farm sites during 2009-2010 around the UK. The Scottish Territorial Waters and Round 3 sites within the Firths of Forth and Tay were surveyed during summer 2009 and winter 2009-2010. The surveys employed standard visual aerial survey methods to record seabirds and marine mammals with a view to these data contributing to the baseline information required to inform the Environmental Impact Assessments for each of the lease areas. The purpose of this document is to report on analyses carried out on the marine mammal data collected on these surveys. Legislation requires developers to assess the local density and abundance of marine mammals within development sites – these data were suitable for doing this for three species (harbour porpoise, white-beaked dolphin and ‘all seals’).