The status of the harbour porpoise, Phocoena phocoena, in Dutch waters and the state of related research in The Netherlands: An overview

Reijnders, P. J. H.; Leopold, M. F.; Camphuysen, C. J.; Heessen, H. J. L.; Kastelein, R. A.
Report of the International Whaling Commission (1996)

The reported decline of the harbour porpoise in the coastal areas of the North Sea after 1940, has also been seen in Dutch waters. Information on the distribution and abundance…