A study on the effects of temperature on growth and survival of Angel Fish frys (Pterophyllum scalare)
Subject Areas : Marine Biology
S. Abdolbaghiyan
1
(
Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University
)
Sh. Jamili
2
(
Iranian Fisheries Research Organization, Tehran
)
A. Matinfar
3
(
Iranian Fisheries Research Organization, Tehran
)
Keywords: growth, temperature, Survival, Pterophyllum scalare, Angel fish,
Abstract :
There are several factors affecting Angel Fish fry's (Pterophyllum scalare) survival and quality. In this study, the effect of temperature on weight, length and survival of Angel Fish fry has been studied. Three temperatures of 27, 29 and 31 degree of centigrade were considered with three repetitions. Thus 9 aquariums with 60 × 40 × 30 centimeter dimension were allocated for these treatments and dry Blood worm in addition to Artemia decapsulated cyst was used to feed aquariums in 30 days. Other factors such as food, pH and oxygen were similar for all treatments. The result of this search has showed that growth and survival of Angel fish fry in 31˚C had the best result and more growth and survival in comparison to the other observed temperature. Using the mean test between length and survival percentage, it became known that there is significant difference between the temperature treatments (P<0.05) and for weight there is significant difference at 27 degree of centigrade in comparison to the treatment of 29 and 31 degree of centigrade, but there is no significant difference at 29 degree of centigrade in comparison to the treatment of 31 degree of centigrade (P>0.05).
