| 摘要: |
| 采用室内实验生态学方法研究了不同温度梯度、规格体重等特质对大弹涂鱼（Boleophthalmus pectinirostris）耗氧率（RO）和排氨率（RN）的影响，以及氧氮比（O︰N）对大弹涂鱼能源物质的分析。结果表明，当温度恒定时，大弹涂鱼的耗氧率和排氨率分别随大弹涂鱼体重的增加而下降，体重（W）与单位体重的耗氧率之间的关系呈负指数相关。温度和体重对大弹涂鱼耗氧率、排氨率均有显著影响（F>0.01）。随着温度的升高（16-31℃），大弹涂鱼耗氧率明显升高；在31-36℃时，耗氧率从高位缓慢下降；排氨率在此温度范围内，一直上升到最高。大弹涂鱼耗氧率和排氨率随体重的增加而下降，而温度和体重的交替作用对耗氧率、排氨率影响不显著。O︰N比也随着温度升高而下降，不同温度下大弹涂鱼平均O︰N比为23.1，呼吸Q10平均值为1.495，排泄Q10平均值为1.798；大、中规格的大弹涂鱼O︰N比值接近，比小规格鱼的O︰N比值低。16-31℃时大弹涂鱼主要以脂肪和碳水化合物为能源，蛋白质其次。 |
| 关键词: 实验生态学方法 大弹涂鱼 温度梯度 体重规格 耗氧率 排氨率 |
| DOI：10.11693/hyhz20161100252 |
| 分类号: |
| 基金项目:广东省自然科学基金项目，8152408801000015号；广西科学研究与技术开发计划项目，桂科攻1598006-6-4号；国家海洋局广东海洋经济创新发展区域示范项目，粤财农[2013]176号；广东省普通高校省级重大科研项目，GDOU2013050219号；湛江市财政资金科技专项，2015A06006号。 |
附件 |
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| INFLUENCE OF TEMPERATURE AND BODY WEIGHT ON OXYGEN CONSUMPTION AND AMMONIA EXCRETION OF BOLEOPHTHALMUS PECTINIROSTRIS |
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ZHOU Yin-Huan, CAO Fu-Jun, LUO Jie, YE Ning
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Key Laboratory for Marine Ecology and Mariculture Environmental Science of Zhanjiang City, Fisheries College, Guangdong Ocean University, Zhanjiang 524025, China
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| Abstract: |
| The effects of temperature and weight on oxygen consumption rate and ammonia excretion rate of Boleophthalmus pectinirostris were studied by means of the experimental ecology method in laboratory. The results showed that temperature and weight had significant effects on oxygen consumption rate (RO) and ammonia excretion rate (RN) (P<0.01). ANOVA showed that RO was not significantly affected by the interaction of temperature and body weight (P>0.05). From 16℃ to 31℃, RO of B. pectinirostris significantly increases as the temperature increased, then decreased from 31℃ to 36℃. The transformation conditions in RN were same. RO and RN of B. pectinirostris decreased significantly as the individual body weight increased. The O/N ratio decreases with the temperature increased. The O/N ratio average for different temperatures, the Q10 respiration and the Q10 excretion were 23.1, 1.495 and 1.798 respectively. The average of oxygen-nitrogen ratio of big-sized B. pectinirostris was close to middle-sized fish, and deeper than small-sized fish. B. pectinirostris took fat or saccharide as the major energy source in the range between 16℃ and 31℃, and protein were the secondary energy source. |
| Key words: experimental ecology method in laboratory Boleophthalmus pectinirostris temperature weight the oxygen consumption rate the ammonia excretion rate |
