| 温度和盐度对龙虎斑耗氧率和排氨率的影响 |
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| 作者姓名： | 梁华芳 黄东科 吴耀华 王成桂 黎明江 |
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| 作者单位： | 广东海洋大学水产学院,湛江524025 |
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| 基金项目： | 广东省海洋渔业科技推广专项项目（A201100I03;A201108B04;A201208G02）资助 |
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| 摘 要： | 利用实验生态学方法研究了温度和盐度(S)对体质量为(98.8±4.3)g龙虎斑(棕点石斑鱼♀×鞍带石斑鱼♂)的呼吸和排泄影响。结果表明,不同温度和S对龙虎斑的耗氧率(RO)和排氨率(RN)有显著影响(P0.05)。在水温15-35℃范围内,龙虎斑的RO随着温度的升高而升高,在35℃时达到最大值,为(0.228±0.011)mg/(g·h),但RN随着温度的升高先升高后降低,在30℃时达到最大值,为(3.985±0.094)μg/(g·h)。S为5-35时,龙虎斑的RN随着S的升高而降低,其关系式为RN=3.689e-0.067S(R2=0.963);在S处于5-15和25-35范围内,RO随S升高而下降,但S在15-25范围时,RO则随S升高而升高。在S为28,水温15-35℃范围内,龙虎斑代谢的O∶N范围为44.416-73.667;在水温28℃,S为5-35时,O∶N值为59.577-275.034。
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| 关 键 词： | 温度 盐度 耗氧率 排氨率 棕点石斑鱼♀×鞍带石斑鱼♂杂交鱼 |
| 收稿时间： | 2013/3/26 0:00:00 |
| 修稿时间： | 2014/4/20 0:00:00 |
Effects of temperature and salinity on oxygen consumption and ammonia excretion of hybrid grouper （Epinephelus fuscoguttatus ♀ × Epinephelus lanceolatus ♂） |
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| Authors: | LIANG Hua-fang HUANG Dong-ke WU Yao-hua WANG Cheng-gui LI Ming-jiang |
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| Institution: | ( Fisheries College, Guangdong Ocean University, Zhanjiang 524025 ) |
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| Abstract: | The effects of temperature and salinity on the respiration and excretion of dragon-tiger grouper （hybrid of Epinephelus fuscoguttatus ♀ × E.lanceolatus ♂） at body weight of （98.8 ±4.3） g were studied using methods in experimental ecology.The results showed that temperature and salinity had significant effects on both oxygen consumption and ammonia excretion （P 〈 0.05） of the grouper.The oxygen consumption rate increased as the temperature increased from 15℃ to 35℃,with the highest value of （0.228 ± 0.011） mg/（g· h） at 35 ℃ ; while the ammonia excretion rate showed an increase-decrease trend with the highest value of （3.985 ± 0.094）μg/（g.h） at 30℃.As salinity increased from 5 to 35,the ammonia excretion rate decreased and the relationship was expressed as RN =3.689e-0.067S（R2 =0.963）.At salinity ranges of 5-15 and 25-35,the oxygen consumption rate decreased as salinity increased,while within salinity of 15-25 it increased with the increasing salinity.The O/N ratio ranged from 44.416 to 73.667 at temperature of 15-35℃ and salinity of 28,and from 59.577 to 275.034 at salinity of 5-45 and temperature of 28℃. |
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| Keywords: | Temperature Salinity Oxygen consumption rate Ammonia excretion rate Epinephelus fuscoguttatus ♀ × Epinephelus lanceolatus ♂ |
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