Journal of Fisheries and Life Sciences

Author(s): Ashok Kumar Verma and Sadguru Prakash

Abstract: The physico-chemical condition of water plays a vital role in the wetland ecosystem. The various physico-chemical parameters of water of Semara Taal have been studied during Jan, 2018 to Dec., 2018 to find out its impact on planktonic population, fish culture and agriculture. The authors recorded that water temperature ranges from 12.8-35.4áµ’C, transparency ranges from 28.6-38.8 cm, dissolved oxygen ranges from 6.1-9.4 ppm, free carbon dioxide ranges from 15.0-28.0 ppm, pH ranges from 7.1-9.8, total alkalinity ranges between 137.0 and 296.0 ppm, total solids ranges between 34 and 116 ppm, nitrate ranges between 1.08 and 1.41 ppm and phosphate ranges from 1.02-1.08 ppm. Total 25 species of phytoplankton and 24 species of zooplankton were also recorded. Bimodal pattern of seasonal variation of plankton was observed with a primary peak in the month of July and secondary peak in January. The physico-chemical and biological conditions were found suitable for fish culture and agriculture.