Fig. 5. The relationship between concentrations of calcium in ovarian fluid and in
plasma of pregnant eelpout after 35 days water exposure to isopropanol
(control, C), 25 µgl-1 4-tert-octylphenol (4-tOP)
(OP25), 100 µgl-1 4-tOP (OP100) or 0.5 µgl-1
17ß-oestradiol (E2). Values are means ± S.E.M.