Language: English
From the introduction:
"Aquatic ecosystems are essential segments of the environment of man. The study of lake ecosystems – limnology – involves, basically, the causal relationships of biotic communities to their environment including the inter-associations of organisms or, in essence, aquatic ecology.
The major lacustrine system available in the region of Shillong, Meghalaya, N.E. India is primarily utilised for recreational purposes, and was taken up for detailed investigation. A number of physico-chemical variables were measured to get an adequate knowledge of their oscillating rhythmic patterns, and to give a greater insight into the nature of the system. This was corroborated by the analaysis of biota at the phytoplankton, zooplankton and bacterial levels to judge their resilience and capacity for change in response to abiotic factors seasonally. This was followed by the study of production levels in the system to identify the turnover in the system.
Finally, it was with the idea that studies of the general rules of biotic transformations of matter and energy in aquatic ecosystems are necessary for they may stimulate the biological analysis of the ecosytstem components. Hence, the comparision ot the final data would probably reveal some general qualities Of freshwater ecosystems of this region and thereby initiate more studies helping us te discover the characteristic distinctions of the various types of aquatic ecosystems in these hilly regions of North-Eastern India."