The Israeli Journal of Aquaculture - Bamidgeh 54(2), 2002, 73-78

EARLY DEVELOPMENT AND GROWTH OF ARCTIC CHARR
(SALVELINUS ALPINUS) AND RAINBOW TROUT
(ONCORHYNCHUS MYKISS) AT A LOW WATER TEMPERATURE


Telat Yanik* and Sukriye Aras Hisar
Fisheries Department, Agricultural Faculty. University, 25240 Erzurum, Turkey


Canan Bolukbasi
Animal Sciences Department, Agricultural Facufty, University, 25240 Erzurum, Turkey

(Received 17.2.02, Accepted 25.4.02)

Key words: arctic charr, growth,l ow water temperature, rainbow trout, survival

Abstract

Hatchery traits and growth of eggs and fry of rainbow trout, Oncorhynchus mykiss, and arctic charr, Satvetims alpinus, were tested in fresh water of a low temperature. There were significant differences (p<0.05) between the survival rates from fertilization through the eyed stage and the tirsi exogenous feeding. No significant differences were observed between species with regard to feed conversion or survival of fry at the end of the 154-day trial, but weight gain and specific growth rate differed significantly (p<0.05). These results suggest that the arctic charr could be considered an alternative to rainbow trout, particularly in coldwater farms.

*Corresponding author. E-mail: telatyanik@yahoo.com
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