Journal
FISH PHYSIOLOGY AND BIOCHEMISTRY
Volume 43, Issue 5, Pages 1421-1431Publisher
SPRINGER
DOI: 10.1007/s10695-017-0382-z
Keywords
Sablefish; Temperature; Salinity; Oxidative stress; Immune responses
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Funding
- Ministry of Oceans and Fisheries, Korea
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Juvenile sablefish, Anoplopoma fimbria (mean length 15.5 +/- 1.9 cm, mean weight 68.5 +/- 4.8 g), were used to evaluate the effects on growth, oxidative stress, and non-specific immune responses by changes of water temperature (8, 10, 12, 14, 16, 18, and 20 A degrees C) and salinity (100 (35.0), 90 (31.5), 80 (28.0), 70 (24.5), 60 (21.0), 50 (17.5), and 40% (14.0) (aEuro degrees)) for 4 months. The growth performance was significantly increased at the temperature of 12 and 14 A degrees C, and the feed efficiency was notably decreased at the temperature of 18 A degrees C. The growth performance and feed efficiency were also significantly decreased at low salinity. The antioxidant responses such as superoxide dismutase and catalase were significantly increased by the high temperature and decreased by the low salinity. The immune responses such as lysozyme and phagocytosis were elevated by the temperature of 18 A degrees C and decreased by the salinity of 50%. The results of this study indicate that the growth performance of juvenile sablefish, A. fimbria, is influenced by the temperature and salinity, and the excessive temperature and salinity levels can affect the antioxidant and immune responses.
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