Effect of water temperature on embryonic development of Japanese flounder
SI Fei, LIU Hai-jin, SUN Zhao-hui, JIANG Xiu-feng, WANG Yu-fen
1. Sehool of Life Science and Technology, Dalian Fisheries University, Dalian 116023, China; 2. Chinese Academy of Fishery Sciences, Beijing 100039, China; 3. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; 4. Beidaihe Central Experiment Station, Chinese Academy of Fishery Seienee,Qinhuangdao 066100, China
Abstract: The embryonic development of Japanese flounder Paralichthys olivaceus was observed at water temperature of 12,15,18,21, and 24 ℃ to evaluate the biological zero and effective accumulative temperature for the embryonic development. The embryos were found to develop normally at water temperature between 12 and 24 ℃, with rate hatching of 86.2% at 15 ℃, and below 50% at 24 ℃. Death of the gastrula was appeared at 27 ℃. The gastrula stage, heart - bud stage, kupffer＇s vesicle formation stage, and tail - bud formation stage developed rapidly with increase in water temperature between 12 and 24 ℃, with short incubation period. It was found that 15 ℃ was the optimal water temperature for the embryonic development of Japanese flounder with upper limit of 24 ℃. The biological zero was found to be 7.41 ℃ and effective accumulative temperature was calculated to be 534.32 ℃ · h for the embryonic development of the flounder.
司飞, 刘海金, 孙朝徽, 姜秀凤, 王玉芬. 温度对牙鲆胚胎发育的影响[J]. 大连海洋大学学报, 2008, 23(6): 476-478.
SI Fei, LIU Hai-jin, SUN Zhao-hui, JIANG Xiu-feng, WANG Yu-fen. Effect of water temperature on embryonic development of Japanese flounder. Journal of Dalian Ocean University, 2008, 23(6): 476-478.
2008, Vol. 23 
