Effects of stocking densities on growth and survival of Thai Sharpunti (Barbonymus gonionotus) in earthen ponds

Authors

  • MFA Mollah Department of Fisheries Biology & Genetics, Bangladesh Agricultural University, Mymensingh-2202
  • M Moniruzzaman Bangladesh Fisheries Research Institute, Riverine Sub-Station, Rangamati Sadar, Rangamati-4500
  • MM Rahman Faculty of Fisheries Science, Hokkaido University

DOI:

https://doi.org/10.3329/jbau.v9i2.11048

Keywords:

Stocking density, Growth, Survival, Thai Sharpunti

Abstract

The present study was conducted over 4 months during 1st September to 30th December 2005 to observe the effects of stocking density on growth and survival of Thai Sharpunti, Barbodes gonionotus in 3 earthen ponds of size of 2.8    decimal each. The stocking densities of 80, 100 and 120 fish/decimal were treated as T1, T2 and T3, respectively. All    the treatments were subjected to the same feeding regime and fertilization. The range of water quality parameters    such as temperature were 30.31, 30.16 and 29.65 0C, transparency were 29.94, 37.63, and 40.02 cm, water depth    were 143.91, 148.67 and 151.54 cm, dissolved oxygen were 4.72, 4.35 and 4.24 mg/l, pH were 7.71, 7.49 and 7.31,    plankton biomass were 43.05 x 105 /l, 37.97 x 105 /l and 36.05 x 105 /l in T1, T2 and T3, respectively. Among the    growth parameters, mean weight gain were 48.87 g, 41.43 g and 34.09 g, percent weight gain were 698.21%,    591.93% and 487%, the average daily gains were 1.65, 1.54 and 1.20 g, the specific growth rate were 1.73, 1.61 and    1.47%, in T1, T2 and T3 respectively. The gross total productions of Barbonymus gonionotus were 1041.96, 1085.71    and 1019.64 kg/ha/120 days while the net productions were 911.60, 929.46 and 846.43 kg/ha/120 days in T1, T2 and    T3, respectively. The gross and net total productions in T2 were highest among the treatments. The highest growth    and survival rate were obtained in T1.

 

DOI: http://dx.doi.org/10.3329/jbau.v9i2.11048

 

J. Bangladesh Agril. Univ. 9(2): 327338, 2011

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Published

2012-06-29

How to Cite

Mollah, M., Moniruzzaman, M., & Rahman, M. (2012). Effects of stocking densities on growth and survival of Thai Sharpunti (Barbonymus gonionotus) in earthen ponds. Journal of the Bangladesh Agricultural University, 9(2), 327–338. https://doi.org/10.3329/jbau.v9i2.11048

Issue

Section

Fisheries