Author(s): A Jacobsson
Kustrapport / Fiskeriverket. Kustlaboratoriet, ISSN 1102-5670 ; 1993:6 Pages: 22 p. This is the final report from the project "Viviparous blenny as an indicator of effects of toxic substances" designed to develop a system of environmental monitoring where the viviparous blenny, or eel-pout, (Zoarces viviparus L.) is used as indicator species for occurrence of toxic substances in the sea and for ecological effects of such substances. The system should be possible to use both within programmes concerning monitoring of emissions and receiving waters as well as in long-term monitoring of reference areas. Several single species systems have been developed in order to enable laboratory measurements of biological effects of toxic substances. Reactions observed are, however, frequently difficult to transfer to ecologically relevant disorders in nature. A single species system for programmes concerning control of emissions and receiving waters should include not only measurements of effects on the individual level in the laboratory and the field, but also monitoring of population variations as well as, if the relevant substances are persistent and bioaccumulating, chemical analyses.