%0 conference poster %@ %A Siebert, U., Fonfara, S., Hasselmeier, I., Das, K., Wohlsein, P., Harder, T. %D 2004 %J ECS Annual Conference 2004 %T Investigations on the Development oF the Health status of harbour Seals in the Year of the PDV-Seal Die-off in 2002 %U %X