Effects of salinity changes on growth performance and survival of climbing perch, Anabas Testudineus (Bloch, 1795)

Authors

  • Faijun Nahar
  • Wahida Haque
  • Dewan Ali Ahsan
  • Md. Ghulam Mustafa

Keywords:

Aquaculture, Effects of salinity, Survival, Growth

Abstract

An experiment was carried out to find the salinity tolerance capability
and growth performance of Climbing Perch, Anabas testudineus (Bloch, 1795).
Anabas testudineus commonly cultured fish in Bangladesh was reared in
laboratory conditions at different salinities of 0, 3, 6, 9, 12, 15, 18 and 21‰ for 60
days. Hundred per cent survivals were detected at 0, 3, 6 and 9‰ salinity while
100% mortality was recorded at 18 and 21‰ salinity. Various responses to threat
and feeding were observed among the fish in different treatments. Lowest feed
conversion ratio was found in the control group while the highest was detected
at 15‰ salinity. On the other hand, decreasing trend of specific growth and
average growth rate were observed in A. testudineus fingerlings from 0 to 15‰
salinity. Significantly higher specific growth rate and average growth rate were
detected in A. testudineus fingerlings reared at 0 ‐ 6‰ salinity (p < 0.05). The
present study suggests that Climbing Perch fingerlings can be reared at fresh
water growth rates in coastal water with salinity up to 6‰.

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