Impact of temperature on growth rate and survival of Indian fry carp (Catla catla), Rohu (Labeo rohita) and Mrigal (Cirrhinus reba) in cultured ponds condition in Khozestan Provience

Subject Areas : New Technologies in Aquaculture Development

Received: 2020-12-08 Accepted : 2020-12-08 Published : 2012-02-20

Keywords: growth, temperature, Survival, Khozestan Province, Keywords: Indian fry carp,

Abstract :

Abstract[1] Temperature is a major factor affecting fish growth in natural environment. To survey water temperature on growth rate and survival 10500 specimen in 3 ponds with 700 m2 (3500 density each pond) including 46.7% catla (Catla catla), 35% Rohu (Labeo rohita) and 18.3% mrigal (Cirrhinus reba) were selected. Mean weight and total length of specieman were 0.3±0.01 gr and 23.6±0.75 mm in rohu, 0.1±0.01 gr and 33.26±0.35 mm in catla, 0.16±0.01 gr and 34.8±0.96 mm. samples carried out monthly biometry, mortality and temperature was record daily. Artificial feed was used. with decreasing temperature decreased feeding rate till stoped in Decamber, Junurey and Febrary. The results indicated maximum growth was occurred in Septamber (29.74±0.45), October (23.74±0.77) and Novamber (20.12±0.46) while mean weight, total and standard length were constant in Decamber (15.4±0.67), Junurey (10.21±0.48), Februry (11.21±0.78) and March (19.41±0.49). Survival rate was observed 80.6-95.71 in 10.19-29.71 °Ctemperature in 3 ponds .In low temperature 7 °C in Junurey and Maximum temperature 34 °C in septamber was not observed mortality. Maximum growth rate was in Rohu Major reason was in density rate, regarding this fish, survival in low temperature, it can be concluded that this fish are suitable culture in Khuzestan climate. *- Corresponding Authors; Email: [e-mail]