Oxygen uptake in relation to body weight in a Hillstream fish Glyptothorax telchitta (Ham.)

Authors

  • Bharat Raj Subba Department of Zoology, Post Graduate Campus, T.U., Biratnagar
  • Tapan Kumar Ghosh University Department of Zoology, TM Bhagalpur University, Bhagalpur

DOI:

https://doi.org/10.3126/njbs.v1i0.7464

Keywords:

Hill-stream, Glyptothorax telchitta, body weight, oxygen uptake

Abstract

Oxygen uptake (VO2) through the gills of a hill-stream fish Glyptothorax telchitta from the Saptakoshi river (Nepal) has been studied in relation to different body weights. The oxygen uptake was determined at 24.0±1°C using a cylindrical glass respirometer with continuous water flow system. The aquatic oxygen uptake through the gills increased from 1.048 to 8.115 mlO2 kg-1.h-1 within the body weight range of 3.215 to 31.355 g. A fish of 17.052 g average body weight consumes 4.461 mlO2-1.h-1. The relation between oxygen uptake (VO2) and body weight was determined by performing regression analysis using logarithmic transformation. It has been found that with a unit increase in body weight, the oxygen uptake per unit time (mlO2h-1) increases by a power of 0.930 showing significant positive correlation whereas, the weight specific oxygen uptake decreases by a power of 0.070 showing significant but negative correlation.

DOI: http://dx.doi.org/10.3126/njbs.v1i0.7464

Nepalese Journal of Biosciences 1: 11-18 (2011)

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Published

2013-01-23

How to Cite

Subba, B. R., & Ghosh, T. K. (2013). Oxygen uptake in relation to body weight in a Hillstream fish Glyptothorax telchitta (Ham.). Nepalese Journal of Biosciences, 1, 11–18. https://doi.org/10.3126/njbs.v1i0.7464

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