Survival Rate with Long Distance Transplantation and Growth Performance of Sablefish Juvenile, Anoplopoma fimbria

Abstract

We investigated the survival followed long period of transplantation, growth performance in indoor tank of juvenile sablefish. Transplantation time was about 43-45 hours and optimal transportation condition of A. fimbria juvenile (TL 3-5 cm, BW 0.2-0.8 g) was 2.9-3.7℃, 31.3-33.4 mg/L (DO) and 28.7 psu. Juvenile sablefish (18.9±0.7 g) were randomly placed in nine experimental tanks, each containing 300 L of water, at 10 individuals/tank. Juveniles were assigned to three treatments (6, 9 and 12℃) in triplicates. After eight weeks, growth performance (weight gain and specific growth rate) of juveniles was increased water temperature-dependently among three treatments. In the rearing of juvenile in indoor tank, salbefish showed a rapid growth with total length (TL) with 49.1±3.0 cm and body weight (BW) with 1,073.2±262.4 g with water temperature 7.2-16.9℃ after 17 months of rearing. The relationship between BW and TL was BW=0.005TLSUP3.1177/SUP (r²=0.9971). Condition factor was 8.0±1.3. There results suggest that the range of optimum water temperature for juvenile growth was 12-16℃. In addition, the present study demonstrates that sablefish would be a possible aquaculture species under indoor-rearing condition in Korea.