Pathology of Carp Blood Infested by Haemogregarina L. I. Smirnova OriginalPaper 01 February 1971 Pages: 1 - 6
Ecological Studies in the Plankton of Certain freshwater Ponds of Hyderabad — India I. Physico-chemical Complexes G. Seenayya OriginalPaper 01 February 1971 Pages: 7 - 31
The limnology of “Swetganga” — A thermal spring of Bakreswar, West Bengal, India B. B. JanaH. L. Sarkar OriginalPaper 01 February 1971 Pages: 33 - 47
Temperature-related occurrence of protozoa S. M. GittlesonT. Ferguson OriginalPaper 01 February 1971 Pages: 49 - 54
Ecological studies in the plankton of certain freshwater ponds of hyderabad — India II, phytoplankton —1 G. Seenayya OriginalPaper 01 February 1971 Pages: 55 - 88
Koagulation der Algen bei der Wasseraufbereitung Libuše Švorcová OriginalPaper 01 February 1971 Pages: 89 - 137
An ecological study of the macrophytic vegetation of the Doodhadhari Lake, Raipur, M. P., India 1. Distribution and seasonal change in aquatic plants K. Sankaran Unni OriginalPaper 01 February 1971 Pages: 139 - 155
Two new Gammaridean Amphipods (Crustacea) from the Gulf of Mannar, S. India P. Rabindranath OriginalPaper 01 February 1971 Pages: 157 - 172