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Turkish Journal of Fisheries and Aquatic Sciences 2009, Vol 9, Num, 1     (Pages: 29-31)

Effects of Sodium Bicarbonate on Anaesthesia of Common Carp (Cyprinus carpio L., 1758) Juveniles

Tülay Altun 1 ,Ramazan Bilgin 2 ,Durali Danabaş 1

1 Çukurova University, Fisheries Faculty, Aquaculture Department, 01330 Adana, Turkey
2 Çukurova University, Faculty of Science and Letters, Chemical Department, 01330 Adana, Turkey
Viewed : 1763 - Downloaded : 1962 In current study, anaesthetic effects of sodium bicarbonate (NaHCO3) in 6 concentrations were determined in common carp (Cyprinus carpio) juveniles (7.70±0.4 g and 8.38±0.8 cm) kept in two different pH levels and at 23°C water temperature. Its effective concentrations were 1000 and 600 mg L-1 in pH 6.5 and 7.7, respectively. While stage of anaesthesia and recovery time increased, induction time decreased; opercular rate firstly increased but than slowly decreased with increasing the concentration of anaesthetic in both pH. No mortality was observed in the study. Applications of NaHCO3 in high pH levels, seems to be suitable on anaesthesia of common carp. Keywords : Cyprinus carpio, sodium bicarbonate, induction time, recovery time, opercular rate, pH, water temperature