highly significantP < 0.001
Physicochemical Parameters There was a highly significant overall variation on dissolved oxygen ( F (6,56) = 33.85; P < 0.001) but not in temperature ( F (6,56) = 2.15; P > 0.05), pH ( F (6, 56) = 0.83; P > 0.05), and vertical transparency ( F (6, 56) = 0.47; P > 0.05) among the sampling sites (Tables 2 and 3 ).