• Rupa Dey
• SUNIL KUMAR CHOUDHARY

ABSTRACT Wetlands have nurtured the development of many important cultures around the world. Kabar wetland has ecological significance as it has been a home for several associated biodiversities. A study was carried out to the productivity status of Kabar wetland. Primary productivity of particular water body gives quantitative information about the amount of energy available to support the bioactivity of the system. The value of Gross Primary Production (GPP) ranged from 0.562 to 4.05 g C/l/d. Maximum GPP was recorded in summer and minimum GPP was recorded in monsoon. GPP showed positive correlation with community respiration (r = 0.968). Net primary production varied from 0.337 to1.35 g C/l/d. NPP values were lower during monsoon and maximum during summer. NPP showed positive correlation with ambient and water temperature and Cyanophycean density (r = 0.887) significant at 5%.Community respiration varied between 0.225 to 3.375 g C/l/d. Community respiration showed negative correlation with Chlorophycean density (r = -0.938). P/R ratio was found to vary from 0.181 to1.98 g C/l/d. The range of P/R ratio is an excellent functional index of unpolluted (P/R > 1) and polluted (P/R < 1) condition of aquatic system. In the present study the P/R ratio indicated that the wetland was progressing towards eutrophication.

Kabar wetland, GPP, NPP, Community respiration, Phytoplankton, Productivity

"Productivity scenario depicts an important relation with phytoplankton - A case study of Kabar wetland", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.659-665, June-2019, Available :http://www.jetir.org/papers/JETIR1906383.pdf

"Productivity scenario depicts an important relation with phytoplankton - A case study of Kabar wetland", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp659-665, June-2019, Available at : http://www.jetir.org/papers/JETIR1906383.pdf