Application of Condition Index to Evaluate Environmental Health of Fishes: A Case Study With Labeo Rohita

Authors

  • Manmatha Nath Sarker Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India
  • Sana Ahmed Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India
  • Shampa Mitra Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India
  • Prosenjit Pramanick Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India
  • Sufia Zaman Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India
  • Abhijit Mitra Department of Marine Science, University of Calcutta, 35 B.C. Road, Kolkata 700019, India

DOI:

https://doi.org/10.3329/bjz.v50i3.65538

Keywords:

Diamond Harbour, Labeo rohita, Condition Index (CI), hydrological parameters, correlation coefficient

Abstract

We monitored the Condition Index (CI) of Labeo rohita, which is an important indicator to evaluate the health and well-being of the cultured fish. In this pilot project, we initiated the culture with Labeo rohita as a candidate species in 12 rain water stocked ponds at Diamond Harbour during March, 2022 to October, 2022 and computed monthly condition index considering the mean weight and length of the cultured species (n = 65 for each pond). Simultaneously we measured the relevant hydrological parameters like surface water temperature, Dissolved Oxygen (DO), surface water pH, dissolved NO3, PO4 and SiO3 for all the ponds. We observed significant positive correlations of CI with surface water temperature, DO, and surface water pH, and significant negative correlations with dissolved NO3 and PO4. The results reveal the use of CI of Labeo rohita as proxy to well-being of the species.

Bangladesh J. Zool. 50(3): 309-319, 2022  

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Published

2023-06-18

How to Cite

Sarker, M. N. ., Ahmed, S. ., Mitra, S. ., Pramanick, P. ., Zaman, S. ., & Mitra, A. . (2023). Application of Condition Index to Evaluate Environmental Health of Fishes: A Case Study With Labeo Rohita. Bangladesh Journal of Zoology, 50(3), 309–319. https://doi.org/10.3329/bjz.v50i3.65538

Issue

Vol. 50 No. 3 (2022)

Section

Articles