30, March 2026

Estimation of Primary Productivity and Energy Transformation in Urban Fish Ponds of Bhagalpur

VOLUME-10; ISSUE-3; MAR-2026

Author(s): Dr. Priyama Kumari

Authors Affiliations:

University Department of Zoology, T.M. Bhagalpur University, Bhagalpur, Bihar, India

DOIs:10.2017/IJRCS/202603012     |     Paper ID: IJRCS202603012


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Quantifying primary productivity is essential for understanding energy flow and fish-carrying capacity. This study investigates Gross Primary Productivity (GPP), Net Primary Productivity (NPP), and Community Respiration (CR) of two urban ponds in Bhagalpur (Bhairwa) from 2021 to 2022. Using the light and dark bottle method, research identified a high metabolic rate, with peak GPP reaching during summer. The P/R ratio remained consistently above 1.0, indicating a healthy autotrophic state.

Primary Productivity, Energy Flow, Bhagalpur, Carbon Fixation, Trophic Efficiency.

Dr. Priyama Kumari (2026); Estimation of Primary Productivity and Energy Transformation in Urban Fish Ponds of Bhagalpur, International Journal of Research Culture Society,    ISSN(O): 2456-6683,  Volume – 10,   Issue –  3,  Available on – https://ijrcs.org/

  • APHA (2018). Standard Methods for the Examination of Water and Wastewater. 23rd Ed.
  • Bhatnagar, A. et al. (2004). Water quality guidelines for management of pond fish culture. CCS HAU.
  • Cui, X., et al. (2022). Ponds as pollution sinks: mechanisms of nutrient retention. Journal of Environmental Management, 312.
  • Kumari, P. (2023). Study of Primary Productivity of Fish Ponds of Bhagalpur, Bihar. Ph.D. Thesis, T.M.B.U.
  • Saha, A., et al. (2023). Anthropogenic impact on urban lentic systems. Water Resources Management, 37.
  • Wetzel, R. G. (2001). Limnology: Lake and River Ecosystems. Academic Press.
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