水生态学杂志Issue(3)：56-60,5.
温度对细鳞鲑幼鱼最大代谢率和代谢范围的影响
Effects of Temperature on Maximum Metabolic Rate and Metabolic Scope of Juvenile Manchurian Trout, Brachymystax lenok (Pallas)
摘要
Abstract
This study examined the effects of water temperature on the metabolic characteristics and aerobic exer-cise capacity of juvenile manchurian trout , Brachymystax lenok ( Pallas) .The resting metabolic rate ( RMR) ,maxi-mum metabolic rate (MMR), metabolic scope(MS)and critical swimming speed (UCrit) of juveniles were measured at different temperature (4, 8, 12, 16, 20℃).The results showed that both the RMR and the MMR increased sig-nificantly with the increasing of water temperature ( P<0 .05 ) .Compared with test group at 4℃, the RMR for 8℃, 12℃, 16℃ and 20℃increased by 62%, 165%, 390%, 411%,respectively, and the MMR increased by 3%, 34%, 111%, 115%, respectively .However , the MS decreased with the increasing of water temperature with the highest MS occurring at 4℃.UCrit was significantly affected by water temperature (P<0.05), but the varia-tions of UCrit didn′t follow certain pattern with temperature .In the test of aerobic exercise , the MMR for each tem-perature level occurred at the swimming speed of 70% UCrit , probably due to the start of anaerobic metabolism , which caused excessive creatine in body , consequently hindered the aerobic metabolism .关键词
细鳞鲑/代谢特征/临界游泳速度Key words
Brachymystax lenok (Pallas)/metabolic characteristics/critical swimming speed分类
生物科学引用本文复制引用
徐革锋,尹家胜,韩英,刘洋,牟振波..温度对细鳞鲑幼鱼最大代谢率和代谢范围的影响[J].水生态学杂志,2014,(3):56-60,5.基金项目
“十二·五”农村领域国家科技计划（2012BAD26B05）；中央级公益性科研院所基本科研业务费专项（HSY201312）。 （）
