Sh. Ahmad et Ak. Singh, CORRELATION BETWEEN PHYSICOCHEMICAL FACTORS AND ZOOPLANKTERS DURING DIURNAL-VARIATIONS IN A FRESH-WATER TANK AT DHOLI (BIHAR), INDIA, Journal of environmental biology, 14(2), 1993, pp. 95-105
Diurnal changes in the physico-chemical properties of water and zoopla
nkters were recorded in a perennial tank at Dholi (Bihar), India. The
variations in the abundance of zooplankters showed a distinct increase
towards the surface niche at night hours and reduction at daytime. Th
e physico-chemical characteristics of water showed a well marked diurn
al fluctuation, but only a very few species of zooplankters were found
to be significantly correlated.