The biotransformation of three 14C-labelled phenolic compounds in twelve species of freshwater fish.

1. The urinary and biliary excretion of 14C-labelled m-cresol, 1-naphthol and o-chlorophenol were investigated in 12 species of freshwater fish (bitterling, Rhodeus sericeus amarus; bream, Abramis brama; crucian carp, Carassius carassius; goldfish, Carassius auratus; gudgeon, Gobio gobio; guppy, Poecilia reticulata; minnow, Phoximus phoximus; perch, Perca fluviatilis; roach, Rutilus rutilus; rudd, Scardinius erythropthalmus; three-spined stickleback, Gasterosteus aculeatus; tench, Tinca tinca) when immersed in sub-lethal concentrations of the compounds in the aquarium water for 48 h. 2.

Hydrolysis of the biliary glucuronic acid conjugate of phenol by the intestinal mucus/flora of goldfish (Carassius auratus).

1. An investigation was carried out on the hydrolytic activity of the intestinal mucus/flora on phenylglucuronide in the bile of goldfish. 2.

The biotransformation of [14C]phenol in some freshwater fish.

1. The biotransformation of phenol was investigated in eight species of freshwater fish: bream (Abramis brama), goldfish (Carassius auratus), guppy (Poecilia reticulata), minnow (Phoxinus phoxinus), perch (Perca fluviatilis), roach (Rutilus rutilus), rudd (Scardinius erythropthalmus) and tench (Tinca tinca), when exposed to sublethal concentrations of phenol in the aquarium water. 2.