On the ecology and distribution of Pseudoterranova decipiens C (Nematoda: Anisakidae) in an intermediate host, Hippoglossoides platessoides, in northern Norwegian waters.

The distribution of Pseudoterranova decipiens C helps demonstrate the ecological basis of this genetically defined sibling species. In northern Norwegian waters the major fish intermediate host is Hippoglossoides platessoides. Overall prevalence, mean intensity and intensity range in H. platessoides were 15%, 16.5 and 1-165, respectively. Outside the range of its only known definitive host, the seal Erignathus barbatus, the parasite was not found in the same intermediate host.