摘要
实验测定了不同温度、不同规格大鳞鲃(Barbuscapito)的耗氧率和窒息点。水温16～34℃范围内,大鳞鲃1龄鱼[(24.78±2.19)g]和2龄鱼[(185.94±5.53)g]的耗氧率和窒息点随温度的升高都表现出上升的趋势。水温26℃时,随着体重规格(10 g、30 g、180 g)的增大,大鳞鲃的耗氧量逐渐升高,耗氧率逐渐下降。1龄大鳞鲃[(34.61±3.75)g]白天的耗氧率显著高于夜间耗氧率,白天12:00～14:00最高,平均耗氧率为(0.195 8±0.037)mg/(g.h),夜间22:00～24:00最低,平均耗氧率为(0.145 9±0.029)mg/(g.h)。测得1龄大鳞鲃在水温26～32℃时的窒息点为0.180 5～0.525 2 mg/L,2龄大鳞鲃的窒息点为0.292 1～0.588 8 mg/L。
Oxygen consumption rate and suffocation point of Barbus capito with different temperature and body weights were measured. The oxygen consumption rate and suffocation point of lyear and 2-years Barbus capito increase respectively as water temperature go up under a range of 16 -34 ℃. It is demonstrate that oxygen consumption is moving up and oxygen consumption rate is dropping clown gradually as body weight under a range of 10 - 180 g at 26 ℃. The average oxygen consumption rate of 1-year fish in the day is significantly higher than that at night. The highest value appears between 12：00 and 14：00 on an average of （0. 195 8 ±0. 037） mg/（ g · h）, the lowest one appears between 22：00 and 24：00 on an average of （0. 145 9 ± 0. 029） mg/（g · h）. The suffocation point are respective 0. 180 5 -0. 525 2 mg/L and 0. 292 1 -0.588 8 mg/L for 1-year fish and 2-years fish under a range of 26 -32 ℃.
出处
《上海海洋大学学报》
CAS
CSCD
北大核心
2012年第3期363-367,共5页
Journal of Shanghai Ocean University
基金
黑龙江水产研究所基本科研业务费专项(2007HSYZX-YZ-04)
黑龙江水产研究所基本科研业务费专项(2009HSYZX-YY-09)
中央级公益性科研院所基本科研业务费专项(201007)
农业部水产生物技术重点开放实验室项目(2010NYBSJ-03)
农业部"948"引进项目(2001-479-5)
关键词
大鳞鲃
耗氧率
窒息点
Barbus capito
oxygen consumption rate
suffocation point
