POTENTIAL OF CLIMBING PERCH Anabas testudineus CULTURE AT COASTAL ZONE

Thumronk Amornsakun1*, Ponpanom Promkaew 2and Anuar bin Hassan3
 
1Fisheries Technology Program
Department of Technology and Industries
Faculty of Sciences and Technology
Prince of Songkla University Pattani Campus
Mueang, Pattani, 94000 Thailand
2 Pattani Inland Fisheries Development Center
Yarang, Pattani, 94000 Thailand
3 School of Fisheries and Aquaculture Science
Universiti Malaysia Terengganu
Mengabang Telipot, Kuala Terengganu, Malaysia 21030
 
*thumronk.a@psu.ac.th
 thumronk.a@gmail.com
 

A study on the effect of water salinity ranging from 0-30 ppt on hatching success of climbing perch, Anabas testudineus was conducted in a 15-liter glass aquarium (water volume 10 liters) containing 500 eggs for various level of water salinity. Fertilization rate at 0, 5, 10, 15, 20, 25 and 30 ppt were 76.67, 61.33, 77.00, 47.33, 0, 0 and 0 %, respectively. The fertilization rate at 0-10 ppt water salinity was significantly (P<0.05) higher than that at 15, 20, 25 and 30 ppt water salinity.  Hatching rate at 0, 5, 10 and 15 ppt were 91.33, 87.90, 86.20 and 77.49 %, respectively.  The hatching rate at 0-10 ppt water salinity was significantly (P<0.05) higher than that at 15 ppt water salinity.  The times of hatching out at water salinity of 0-15 ppt were between 1,255-1,300 minutes.

The survival tolerance of climbing perch larvae in different water salinity (0-30 ppt) within 24 hour were then studied using a 50-liter glass aquarium (water volume 30 liters) containing 50 larvae at each level of water salinity.  All treatments were done in triplicate. The survival rate of fish larvae in the 0, 5, 10, 11, 12, 13, 14, 15, 20, 25 and 30 ppt water salinity were 100, 100, 100, 83.3, 83.3, 73.3, 70, 70, 0, 0 and 0 %, respectively.  The survival rate at 0-12 ppt water salinity was not significantly (P>0.05).  The gain rate of total body length at 8 weeks at water salinity ranging from 0, 5, 10 and 12 ppt were 1.33, 1.41, 1.36, 1.43 and 1.63 cm, respectively.  The gain rate of total body length at 0-12 ppt water salinity was not significantly (P>0.05).  Water salinity in the range of 0-12 ppt was suitable for climbing perch culture.