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Framework for assessing impacts of pile-driving noise from offshore wind farm construction on a harbour seal population

Research output: Contribution to journalArticle

Author(s)

P.M. Thompson, G.D. Hastie, J. Nedwell, R. Barham, K.L. Brookes, Line S. Cordes, H. Bailey, Nancy McLean

School/Research organisations

Abstract

Offshore wind farm developments may impact protected marine mammal populations, requiring appropriate assessment under the EU Habitats Directive. We describe a framework developed to assess population level impacts of disturbance from piling noise on a protected harbour seal population in the vicinity of proposed wind farm developments in NE Scotland. Spatial patterns of seal distribution and received noise levels are integrated with available data on the potential impacts of noise to predict how many individuals are displaced or experience auditory injury. Expert judgement is used to link these impacts to changes in vital rates and applied to population models that compare population changes under baseline and construction scenarios over a 25. year period. We use published data and hypothetical piling scenarios to illustrate how the assessment framework has been used to support environmental assessments, explore the sensitivity of the framework to key assumptions, and discuss its potential application to other populations of marine mammals.
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Details

Original languageEnglish
Pages (from-to)73-85
Number of pages13
JournalEnvironmental Impact Assessment Review
Volume43
Early online date29 Jun 2013
DOIs
Publication statusPublished - 1 Nov 2013

    Research areas

  • EU habitats directive, Appropriate assessment, Population consequences, Disturbance, Offshore wind farm, Marine mammal

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