论文部分内容阅读
对平均体质量为16.0g～18.4g的军曹鱼在不同水温和盐度条件下的耗氧率进行了测定。结果表明,水温对军曹鱼的耗氧率有显著影响。盐度29‰时,水温从17℃上升到32℃,军曹鱼的耗氧率从0.357mg/g·h增加到0.880mg/g·h,水温(X)与耗氧率(Y)的关系可用幂函数表示:Y=0.0045X1.5197。在水温29℃时,军曹鱼的耗氧率随着盐度的变化而变化。此外,军曹鱼的耗氧率表现出较明显的昼夜变化规律,在中午前和傍晚后较高。水温对军曹鱼幼鱼的窒息点有显著影响。水温从21℃升高到33℃,窒息点从0.74mg/L增加到1.44mg/L。盐度对窒息点的影响不显著。
The oxygen consumption rate of cobia under the condition of different water temperature and salinity was determined on the average body weight of 16.0g ~ 18.4g. The results showed that water temperature had a significant effect on the oxygen consumption of cobia. When the salinity was 29 ‰, the water temperature increased from 17 ℃ to 32 ℃, and the oxygen consumption rate of cobia increased from 0.357mg / g · h to 0.880mg / g · h. The relationship between water temperature (X) and oxygen consumption rate Power function: Y = 0.0045X1.5197. At 29 ℃, the oxygen consumption of cobia changed with salinity. In addition, the oxygen consumption rate of cobia showed a more obvious diurnal variation, which was higher before and after noon. Water temperature has a significant impact on the juvenile coma juvenile smothering point. Water temperature increased from 21 ℃ to 33 ℃, and the asphyxia point increased from 0.74mg / L to 1.44mg / L. Salinity had no significant effect on the point of suffocation.