Studies on Diel Oxygen Fluctuation in a Tidal Brackish Water Farm at Ikoyi, Lagos, Nigeria

P.U. Uzukwu ； F.O. Nwadukwe ； N.A. Jamabo

《Current Research Journal of Biological Sciences》 5卷5期 (2013/09) Pp. 190-194

並列摘要

This study provides baseline data on diel oxygen fluctuation in a tidal brackish water environment. Investigation on diel Dissolved Oxygen (DO) fluctuation was carried out in a tidal brackish water habitat at two-hourly intervals in three ponds (6, 8 and 9). The highest mean dissolved oxygen values of 6.80, 7.00 and 3.90mg/1 for ponds 6, 8 and 9 respectively were recorded during the afternoon in the dry season. On the other hand, the lowest dissolved oxygen levels of 1.98, 3.00 and 0.20mg/1 for ponds, 6, 8 and 9 respectively were recorded during periods of heavy influx of suspended clay and silt particles in the peak of the rainy season. Analysis of Variance (ANOVA) showed that DO values recorded during peak dry season were significantly higher (p ≤ 0.05) than those of the rainy season.

並列關鍵字

Brackish water ponds ； diel oxygen ； dry season ； rainy season