Abstract
A study of the effects of active sonar transmissions on fish and marine mammals in Norwegian waters has been launched following the ordering of new frigates by the Royal Norwegian Navy (RNoN). The frigates will be equipped with active sonars operating at lower frequencies than those of the sonars currently in operation in the RNoN. Lower frequency sonar transmissions are believed to be potentially more harmful to marine life than higher frequency transmissions. The objective of the study is to acquire knowledge about the effects of active sonar on marine life, and produce a set of recommended rules for naval sonar operations in Norwegian waters based on scientific grounds.
Published Version
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