Concentration and BCF of 4-tert-octylphenol and 17β-oestradiol in plasma and ovarian fluid after 35 days of water exposure of the pregnant eelpout (Zoarces viviparus) to the compounds
| . | 4-tert-octylphenol† (μg l-1) . | . | . | 17β-oestradiol (ng l-1) . | . | |||
|---|---|---|---|---|---|---|---|---|
| . | Control (N=8) . | OP25 (N=8) . | OP100 (N=7) . | Control (N=8) . | E2 (N=7) . | |||
| Concentration | ||||||||
| Water | BD | 14±2 | 65±3 | ND | ND | |||
| Plasma | BD | 5 026±874 | 54 904±5 357 | 48.3±8.1 | 11 074±786*** | |||
| Ovarian fluid | BD | 4.8±0.9 | 1 421±415 | 24.6±2.6 | 57.8±9.0** | |||
| BCF | ||||||||
| Plasma | - | 201±35 | 549±57 | - | 22.2±1.6 | |||
| Ovarian fluid | - | 0.21±0.04 | 15.2±4.5 | - | 0.12±0.02 | |||
| . | 4-tert-octylphenol† (μg l-1) . | . | . | 17β-oestradiol (ng l-1) . | . | |||
|---|---|---|---|---|---|---|---|---|
| . | Control (N=8) . | OP25 (N=8) . | OP100 (N=7) . | Control (N=8) . | E2 (N=7) . | |||
| Concentration | ||||||||
| Water | BD | 14±2 | 65±3 | ND | ND | |||
| Plasma | BD | 5 026±874 | 54 904±5 357 | 48.3±8.1 | 11 074±786*** | |||
| Ovarian fluid | BD | 4.8±0.9 | 1 421±415 | 24.6±2.6 | 57.8±9.0** | |||
| BCF | ||||||||
| Plasma | - | 201±35 | 549±57 | - | 22.2±1.6 | |||
| Ovarian fluid | - | 0.21±0.04 | 15.2±4.5 | - | 0.12±0.02 | |||
Values are expressed as means ± S.E.M.
Significant difference from the control is indicated by asterisks: **P<0.01 and ***P<0.001. †No statistics are applied to the data for 4-tOP, as all data in the control group were below detection limits.
Abbreviations: BCF, bioconcentration factor; 4-tOP,4-tert-octylphenol; E2, 0.5 μg l-117β-oestradiol; OP25, 25 μg l-1 4-tOP; OP100, 100 μg l-1 4-tOP; N, number of mother fish; BD, below detection limit; ND, not determined.
BCF was calculated as the actual concentration of the compound in the compartment compared with the nominal water concentration of the compound.