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- Title
Temperature and salinity tolerances of yellowfin sea bream, Acanthopagrus latus, at different salinity and temperature levels.
- Authors
Jian, C-Y.; Cheng, S-Y.; Chen, J-C.
- Abstract
Yellowfin sea bream Acanthopagrus latus (Houttuyn) (0.98 ± 0.27 g) were examined for temperature and salinity tolerances at nine different environmental regimes (0.3, 15 and 33 ppt combined with 10, 25 and 32 °C), in which the fish were subjected to gradual and sudden changes in temperature and salinity respectively. The 50% CTMax (critical thermal maximum) and the UILT (upper incipient lethal temperature) were in the range of 34.8-38.2 °C and 32.8-36.4 °C respectively. The 50% CTMin (critical thermal minimum) and the LILT (lower incipient lethal temperature) were in the ranges of 4.9-9.4 °C and 7.1-17.6 °C respectively. The 50% CSMax (critical salinity maximum) and the UILS (upper incipient lethal salinity) were in the ranges of 54-69‰ and 9-44‰, respectively. The fish at lower temperature (10 °C) and salinity of 33‰ tolerated temperature as iow as 6 °C when the temperature was decreased gradually. The fish at 33 and 15‰ and lower temperature (10 °C) tolerated salinity as high as 66-67‰, whereas those at freshwater salinity level (0.3 ‰) and 32 °C tolerated salinity to 50‰ when salinity was increased gradually. The relationships among UILT, LILT, 50% CTMax, 50% CTMin, UILS, 50% CSMax, salinity and temperature are given.
- Subjects
ACANTHOPAGRUS; WATER salinization
- Publication
Aquaculture Research, 2003, Vol 34, Issue 2, p175
- ISSN
1355-557X
- Publication type
Article
- DOI
10.1046/j.1365-2109.2003.00800.x