| 史氏鲟南移驯养及生物学的研究:Ⅱ.几种环境因子对仔鱼的影响 |
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| 引用本文： | 庄平,倪朝晖,周运涛,张征,吴恢碧,张涛.史氏鲟南移驯养及生物学的研究:Ⅱ.几种环境因子对仔鱼的影响[J].淡水渔业,1998,28(5):3-6. |
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| 作者姓名： | 庄平 倪朝晖 周运涛 张征 吴恢碧 张涛 |
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| 作者单位： | 中国水产科学研究院长江水产研究所，湖北荆州434000 |
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| 基金项目： | 国家科技攻关项目，96-008-01-01-007， |
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| 摘 要： | 非离子氨对史氏鲟早期仔鱼７２和９６小时的ＬＣ５０分别为０６８和０６３ｍｇ／Ｌ；对晚期仔鱼的８、１２、１４、４８、７２和９６小时的ＬＣ５０分别为０５０、０４３、０３５、０２６、０２１和０１７ｍｇ／Ｌ，当浓度达到０３５ｍｇ／Ｌ时，在１７小时内造成试验鱼全部死亡。４８小时内造成早期仔鱼５０％死亡的总铁浓度为５００ｍｇ／Ｌ。史氏鲟仔鱼对ｐＨ忍耐性的上限和下限分别为９２５和３６０，立刻致死的ｐＨ值分别为２０９—２５０和１０１０—１０００。
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| 关 键 词： | 史氏鲟，非离子氨，铁，pH，急性毒性 |
| 修稿时间： | 1998年7月5日 |
DOMFSHCATION OF AMUR STURGEON (ACIPENSER SCHRENCKI) IN CENTRAL CHINA AND ITS BIOLOGY: Ⅱ .EFFFCTS OF SEVERAL ENVIROMENTAL FACTORS ON LARVA |
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| Zhuang Ping,Ni Zhaohui,Zhou Yuntao,Zhang Zhen and Wu Huibi.DOMFSHCATION OF AMUR STURGEON (ACIPENSER SCHRENCKI) IN CENTRAL CHINA AND ITS BIOLOGY: Ⅱ .EFFFCTS OF SEVERAL ENVIROMENTAL FACTORS ON LARVA[J].Freshwater Fisheries,1998,28(5):3-6. |
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| Authors: | Zhuang Ping Ni Zhaohui Zhou Yuntao Zhang Zhen and Wu Huibi |
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| Abstract: | The toxicity of several environmental factors to Amur sturgeon larvae was studied,LC 50 of NH 3 for early-stage larvae were 0.68mg/L at 72hr and 0.63mg/L at 96hr respectively and for late-stage larvae were 0.50mg/L at 8hr,0.43mg/L at 12hr,0.35mg/L at 14hr,0.26mg/L at 48hr,0.21mg/L at 72hr and 0.17mg/L at 96hr.LC 50 of Fe for early-stage larvae was 6.78mg/L at 24hr and the concentration of Fe causing 50% mortality for the larvae was 5.00mg/L.The late-stage larvae could survive within pH value of 9.25-3.60. |
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| Keywords: | pH |
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