Cc. Tenhallerstjabbes et al., IMPOSEX IN WHELKS (BUCCINUM-UNDATUM) FROM THE OPEN NORTH-SEA - RELATION TO SHIPPING TRAFFIC INTENSITIES, Marine pollution bulletin, 28(5), 1994, pp. 311-313
Imposex in female whelks (Buccinum undatum L.) from the open North Sea
is reported for the first time. The frequency of occurrence of a peni
s homologue and the mean length of this homologue increased with shipp
ing intensity. Twenty years ago whelks from the area did not show sign
s of imposex.