II I I I I I I 41 - 3S 3. " 31 9. - 8. 23- S --- --- -- --- | -- 1 --- --- ---- [ 6 9 12 15 18 21 24 3 6h Figure 11. Station 7. Diurnal variables measured at Benner Bay Mangrove Lagoon. Solid lines March 21-22, 1970, broken lines April 20-21, 1971. 0 indicates D.0 saturation points.