In the 1976-1986 period Pariambus typicus was found across the entire Belgian part of the North Sea with a low distribution frequency. In the 1994-2001 period the distribution frequency increased but the distribution was limited to the near-coastal zone, with the exception of the eastern costal zone. The density levels increased as well: from a maximum of 220 ind./m2 in the 1976-1986 period to a maximum of 15,000 ind./m2 in the 1994-2001 period.
Degraer, S.; Wittoeck, J.; Appeltans, W.; Cooreman, K.; Deprez, T.; Hillewaert, H.; Hostens, K.; Mees, J.; Vanden Berghe, E.; Vincx, M. (2006). The macrobenthos atlas of the Belgian part of the North Sea. Belgian Science Policy. D/2005/1191/3. ISBN 90-810081-6-1. 164 pp. (look up in IMIS)