Effects of water temperature on metabolism of triploid and diploid oyster Crassostrea gigas
ZHOU Yi-bing, HUANG Pu-yi, LI Xiao-yan, YANG Da-zuo , ZHANG Guo-fan
1. College of Life Science ＆ Biotechnology, Dalian Fisheries University, Dalian 116023, China ;2. College of Wildlife Resources, Northeast Forestry University, Harbin 150040, China; 3. College of Biological Engineering, Dalian University, Dalian 116622, China; 4. Institute of Oceanology, Chinese Aeodemy of Science, Qingdao 266071, China
Abstract: Effects of water temperature （ 12, 18, 24 and 30℃ ） on oxygen consumption and ammonia - N excretion of triploid （3n） and diploid oyster （2n） （Crassostrea gigas） were studied in laboratory. At 12 - 24℃, oxygen consumption rate increased with accelerated temperature, peaks at 24℃ for 3n and 2n oyster. At 30℃, however, oxygen consumption decreased. Ammonia - N excretion rate of the oyster increased with increase in water temperature. Under controlled temperature of 12 - 30℃, the regressive equation between body weight of the oyster（W） and oxygen consumption rate （R） is described as R = aW^b-1, the ranges of a and b were 1. 532 -1. 737, 0.728 -0.887 for triploid ; 1. 197 -2. 173, 0.823 -0. 854, for diploid. Under 12 -30℃, the relationship between body weight （W） of oyster and ammonia - N excretion rate （N） is described as regressive equation N = cW^d-1 , the means of c and d were 194. 992 and 0. 669 in diploid, and 251. 746, 0. 610 in triploid. ANOVA showed that oxygen consumption rate was significantly affected by temperature, and the triploid had higher value than diploid; the ammonia - N excretion rate was significantly affected by the water temperature and ploidity.
周一兵, 黄璞祎, 李晓艳, 杨大佐, 张国范. 温度对不同规格长牡蛎三倍体和二倍体代谢影响的比较[J]. 大连海洋大学学报, 2006, 21(3): 226-230.
ZHOU Yi-bing, HUANG Pu-yi, LI Xiao-yan, YANG Da-zuo , ZHANG Guo-fan . Effects of water temperature on metabolism of triploid and diploid oyster Crassostrea gigas. Journal of Dalian Ocean University, 2006, 21(3): 226-230.
2006, Vol. 21 
