Effect on seals at Rødsand seal sanctuary from the construction of Nysted Offshore Wind Farm based on aerial surveys Technical report to Energi E2 A/S Jonas Teilmann 1 , Jacob Carstensen 2 , Rune Dietz 1 , Susi Manuela Clermont Edrén 1 National Environmental Research Institute (NERI) 1 Department of Arctic Environment 2 Department of Marine Ecology Ministry of the Environment Denmark June 2004