Resource Documents by Siebert, Ursula
Gilles, Anita; Sheidat, Meike; and Siebert, Ursula
Seasonal distribution of harbour porpoises and possible interference of offshore wind farms in the German North Sea
ABSTRACT: The seasonal distribution of harbour porpoises in the German North Sea was investigated, hot spot areas were identified and the proportion of porpoises potentially affected by the imminent construction of offshore wind farms was estimated. Data were collected during dedicated aerial surveys conducted year-round between 2002 and 2006 following line transect methodology. Survey effort amounted to 44 739 km during which a total of 5121 harbour porpoises was detected, including 258 calves. Our data suggest that porpoises move to distinct areas . . . Complete article »
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