Popis: |
A study of the benthic macroinvertebrates of a fourth order stream in southern Nigeria was carried out to assess the ecological impact of stream regulation. Three stations, 1, 2, and 3 were selected from upstream of the impoundment, the impoundment (reservoir) and it's downstream respectively. Among the physical and chemical parameters studied, only the water level, transparency, current velocity and dissolved oxygen were significantly different (P JOURNAL OF AQUATIC SCIENCES Volume 16, Number 2, October 2001, pp. 132-138 |