FURTHER-STUDIES OF THE EFFECTS OF EXHAUST FROM 2-STROKE OUTBOARD MOTORS ON FISH

Rainbow trout were exposed to an n-hexane extract of engine exhaust co ndensate by intra peritoneal (i.p.) injection or by feeding with conta minated home-made cod chips. Exposure levels were calculated and chose n to reflect those conditions possibly experienced by fish in their na tural habitats. Disruption of biological functions has been observed a t different levels of biological organization including cellular and s ubcellular processes (DNA-adduct levels and enzyme activity) and physi ological functions (carbohydrate metabolism). Female and male fish may be affected to a varying degree by these types of pollutants. Copyrig ht (C) 1996 Elsevier Science Ltd.