| 牙鲆自净式养殖槽中异养细菌和硝化细菌数量及硝化速率 |
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| 引用本文： | 马悦欣,许兵玲,何洁,杨凤,雷衍之.牙鲆自净式养殖槽中异养细菌和硝化细菌数量及硝化速率[J].中国水产科学,2001,8(1):33-36. |
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| 作者姓名： | 马悦欣 许兵玲 何洁 杨凤 雷衍之 |
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| 作者单位： | 大连水产学院，辽宁大连116023 |
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| 摘 要： | 对牙鲆(Paralichthys
olivaceus)自净式养殖槽水层和过滤沙层的异养细菌和硝化细菌数量及硝化速率进行了研究，测得装有循环过滤装置的水槽水中和沙粒上异养细菌平均数量分别为2.32×10
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| 关 键 词： | 循环过滤装置 异养细菌 硝化细菌 硝化速率 牙Ping 自净式养殖槽 |
| 文章编号： | 1005-8737(2001)01-0033-04 |
| 修稿时间： | 2000年7月26日 |
Numbers and nitrification
rates of heterotrophic bacteria and nitrifiers in self-purification culture of
Paralichthys olivaceus |
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| MA Yue xin,XU Bing ling,HE Jie,YANG Feng,LEI Yan zhi.Numbers and nitrification
rates of heterotrophic bacteria and nitrifiers in self-purification culture of
Paralichthys olivaceus[J].Journal of Fishery Sciences of China,2001,8(1):33-36. |
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| Authors: | MA Yue xin XU Bing ling HE Jie YANG Feng LEI Yan zhi |
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| Abstract: | Six ponds were designed for the test, each 60 cm×24 cm×40 cm witha density of Paralichthys olivaceus at 70～80 inds/m2 and body weight 4～8 g. Among those, 4 ponds were equiped with recircling filters and covered with sand on the bottoms and 2 ponds were controls without filters nor sand. All fish were fed 3 times per day with formulated feed for 30 d. The results show that in the test ponds the numbers of heterotrophic bacteria in water and sand were 2.32×104 CFU/ml and 2.89×106 CFU/ml (wet sand); the nitrite bacteria were 3.0×102 ml-1 and 2.0×104 ml-1 (wet sand), respectively. At water temperature 20℃, the ammonia oxidation rates in water and sand were 0.032 mg/(L.d) and 7.59 mg/(L.d)(wet sand); the nitrite oxidation rates were 0.259 mg/(L.d) and 28.0 mg/(L.d), respectively. While in the controls, the average numbers of heterotrophic bacteria, nitrite bacteria and nitrate bacteria were 1.38×106 CFU/ml, 3.5×103 and 3.5×103 ml-1, respectively, and the oxidation rates of ammonia and nitrite were 0.712 mg/(L.d) and 1.56 mg/(L.d) in water, respectively. |
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| Keywords: | recircling filter apparatus heterophic bacteria nitrifiers nitrification rate |
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