作　　者： ; ; ; ; ; ; ;

机构地区： 中国水产科学研究院南海水产研究所

出　　处： 《中国水产科学》 2013年第5期968-974,共7页

摘　　要： 采用室内封闭静水式呼吸代谢实验装置, 开展不同水温梯度、不同体质量的南海野生真蛸（Octopus vulgaris）的呼吸代谢实验, 分析了不同水温条件下真蛸耗氧率和排氨率的变化, 不同体质量真蛸耗氧率和排氨率的变化, 以及真蛸呼吸代谢底物O：N比的变化。结果表明, 水温变化对南海野生真蛸耗氧率和排氨率有明显影响, 体质量对耗氧率和排氨率的影响不显著（P〈0.05）。在16-32℃实验水温范围内, 不同水温梯度下, 相同体质量南海野生真蛸耗氧率及排氨率呈现先升高后降低的趋势; 相同水温条件下, 随着个体体质量的增加, 南海野生真蛸的耗氧率和排氨率虽有缓慢下降但不明显（P〉0.05）。24℃可能为南海野生真蛸呼吸代谢的转折点, 在该水温下, 其耗氧率和排氨率最高, 代谢速率最快, 单位体质量真蛸的耗氧率和排氨率分别为0.86 mg/（g·h）和36.69 μg/（g·h）。真蛸呼吸代谢底物分析结果中, 在24-28℃水温变化范围内, O：N比不断增加, 表明真蛸呼吸消耗的能量中蛋白质供能比例不断降低。 The relationship between oxygen consumption rate, ammonia excretion rate and water temperature, body weight and the respiratory metabolism of wild Octopus vulgaris in South China Sea were investigated with a breather apparatus in closed static seawater system. The experimental results showed that water temperature had apparent effect on oxygen consumption rate and ammonia excretion rate （P〈0.05）, while the influence of weight was not significant（P〉0.05）. Under 16-32℃, the oxygen consumption rate and ammonia excretion rate first increased and then decreased with increasing temperature; under the same temperature, no significant changes were observed among different body weight. Temperature of 24℃ may be the kick point for Octopus vulgaris respiratory metabolism. Under this temperature, the highest oxygen consumption rate, ammonia excretion rate and fastest metabolic rate were recorded. At 24℃, Octopus vulgaris oxygen consumption rate and ammonia excretion rate were 0.86 mg/（g·h） and 36.69 μg/（g·h） per unit of body mass, respectively. The result of respiratory metabolism substrate analysis showed that under 24-28℃ the ratio of O： N increased with temperature increasing, which indicated that the proportion of energy provided by protein decreased.

关 键 词： 真蛸 南海 耗氧率 排氨率 水温 体质量

领　　域： [农业科学]