| 亚硝酸盐和氨对罗氏沼虾幼体的毒性 |
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| 引用本文： | 臧维玲,沈林华.亚硝酸盐和氨对罗氏沼虾幼体的毒性[J].上海水产大学学报,1996,5(1):15-22. |
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| 作者姓名： | 臧维玲 沈林华 |
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| 作者单位： | 上海水产大学渔业学院!200090，上海水产大学渔业学院!200090，上海水产大学渔业学院!200090，上海水产大学渔业学院!200090，浙江省平湖市水产试验场!314204，浙江省平湖市水产试验场!314204，浙江省平湖市水产试验场!314204，浙江省平湖市水产试验场!314204，浙江省平湖市水产试验场! |
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| 摘 要： | 本文研究了ＮＯ２＾－Ｎ与ＮＨ３－Ｎ对罗氏沼虾幼体的毒性作用，分别给出了ＮＯ２％－－Ｎ与ＮＨ３－Ｎ对罗氏沼虾Ｚ５、Ｚ７与Ｚ９的２４ｈ、４８ｈ、７２ｈ、９６ｈ的ＬＣ５０值，提出ＮＯ２＾－－Ｎ对Ｚ５、Ｚ７和Ｚ９的安全浓主工分别为０．６４，１．３８和１．６８ｍｇ／ｌ，ＮＨ３－Ｎｔ（ＮＨ３－Ｎｍ（的安全浓度分别为２．０４（０．２８７），２．２６（０．３１８）和２．５５（０．３５８）ｍｇ／ｌ。Ｚ５与Ｚ７分别经
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| 关 键 词： | 罗氏沼虾 虾 氨 毒性 安全浓度 幼体 亚硝酸盐 |
THE TOXIC EFFECTS OF NO_2~--N AND NH_3-N ON MACROBRACHIUM ROSENBERGII LARVA |
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| Zang Wei-ling, Jiang Min, Zhang Jian-da and Dai Xi-lin.THE TOXIC EFFECTS OF NO_2~--N AND NH_3-N ON MACROBRACHIUM ROSENBERGII LARVA[J].Journal of Shanghai Fisheries University,1996,5(1):15-22. |
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| Authors: | Zang Wei-ling Jiang Min Zhang Jian-da and Dai Xi-lin |
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| Abstract: | This paper deals with the toxic effects of NO2 - N and NH3 - N on Macrobrachium rosenbergii larva. The 24h, 48h, 72h, and 96h LC50 values of NO2-N and NH3-N for Z5, Z7 and Z9 were obstained. The safe concentrations of No-2-N and NH3-Nt (NH3-Nm) for Z5, Z7 and Z9 were 0. 64, 1. 38, 1. 68mg/L and 2. 04(0. 287), 2. 26(0. 318),2. 55 (0. 358)mg/L respectively. The Larva of Z7 and Z5 poisoned subacutely for 12-day showed that the larval developement, metaborphosis and survival rate decreased with the concentration. The toxic effects of the toxicant strengthen obviously when the toxicant concentration exceeded the safe concentration. |
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| Keywords: | Macrobrachium rosenbergii nitrite-nitrogen ammonia-nitrogen toxic effect median tolerated concentration safe concentration larva |
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