输水工程中沼蛤入侵的植物他感防治技术研究
Comparison of Oleander Extracts and Chemical Reagents on the Prevention and Control of Limnoperna fortunei
投稿时间:2017-02-27  修订日期:2019-01-17
中文关键词:沼蛤  夹竹桃  化学试剂  化感作用  防控技术
英文关键词:Limnoperna fortunei  Nerium indicum (oleander)  chemical reagent  allelopathic effect  prevent and control effect
基金项目:湖北工业大学博士科研启动基金计划项目(BSQD14017);科技部国际科技合作与交流专项(2014DFE70070);国家重点基础研究发展计划(973计划)(2014CB460601)
作者单位E-mail
谭纤茹 湖北工业大学土木建筑与环境学院 河湖生态修复与藻类利用湖北省重点实验室湖北 武汉 430068 tanqianru2016@163.com 
刘德富 湖北工业大学土木建筑与环境学院 河湖生态修复与藻类利用湖北省重点实验室湖北 武汉 430068 dfliu@189.cn 
张佳磊 湖北工业大学土木建筑与环境学院 河湖生态修复与藻类利用湖北省重点实验室湖北 武汉 430068 zhangjialei2015@sina.com 
李阳 湖北工业大学土木建筑与环境学院 河湖生态修复与藻类利用湖北省重点实验室湖北 武汉 430068 841191389@qq.com 
魏小熙 湖北工业大学土木建筑与环境学院 河湖生态修复与藻类利用湖北省重点实验室湖北 武汉 430068 244896757@qq.com 
摘要点击次数: 37
全文下载次数: 26
中文摘要:
      从植物化感作用防治沼蛤(Limnoperna fortunei)的角度,基于前期的预实验筛选出对沼蛤具有化感作用的植物—夹竹桃(Nerium indicum),化学试剂灭杀沼蛤容易对水质产生二次污染,物理防控方法操作困难,利用植物的化感作用防控沼蛤效果好、生物毒性低、不会对水质造成二次污染等优点,通过比较夹竹桃水浸液与化学试剂的防治效果,为沼蛤的防控技术提供理论依据。通过先比较5种常用试剂草甘膦、丹宁酸、高锰酸钾、次氯酸钠和氯胺对沼蛤的防治效果,观察沼蛤的死亡率、开壳率、粘附率和移动距离,筛选出防治效果较好的化学试剂,然后与前期筛选出夹竹桃水浸液进行沼蛤防治效果比较实验,确定他感植物对淡水壳菜的灭杀能力。结果表明,通过不同化学试剂防治效果比较实验,初步筛选出3种对沼蛤灭杀效果较好的次氯酸钠、高锰酸钾和氯胺,其沼蛤最高死亡率均大于50%,开壳率均在30%以下,而粘附率在50%以下且沼蛤基本未移动;通过夹竹桃水浸液与化学试剂的防治效果比较,次氯酸钠、高锰酸钾、氯胺和夹竹桃水浸液均具有较好的防控效果,其最佳投放浓度分别11 mg/L、4 mg/L、4 mg/L、4 mg/L,半致死时间分别为111 h、109 h、122 h、82 h。
英文摘要:
      Limnoperna fortunei (golden mussel) is a typical invasive organism. Preventing and controlling L. fortunei is difficult and, at present, the primary means is application of chemicals, resulting in serious secondary pollution of water. Based on our previous study of plant poisons and the physiological and behavioral characteristics of L. fortunei, we found that Nerium indicum (oleander) contained toxic substances that could potentially control L. fortunei with less secondary pollution. In this paper, we compared the effect of oleander extracts on L. fortunei with the effect of chemical reagents, aiming to provide a theoretical basis for controlling L. fortunei with a plant extract. The test L. fortunei were collected in the Yangtze River at Wuhan in September 2016 and divided into four groups according to body length (L≤5 mm, 5 mm25 mm). We first compared the effects of five chemical reagents (glyphosate, tannic acid, sodium hypochlorite, permanganate and chloramine) on L. fortunei and identified the most effective chemical reagents, based on mortality, shell opening rate, adhesion rate and movement. Four concentrations (0 mg/L, 5 mg/L, 50 mg/L, 100 mg/L) of each chemical were used for comparison, and each treatment was run in triplicate with 12 l. fortunei per trial (3 individuals of each body length). The three most effective chemical reagents were permanganate, sodium hypochlorite and chloramine at the highest exposure level (100 mg/L), all three chemicals gave l. fortunei mortality rates > 50%, open shell rates < 30%, adhesion rates < 50%, and no movement. These three chemicals were then compared with oleander extract under the same conditions, based on the same response parameters, using seven concentrations (0 mg/L, 1.0 mg/L, 2.0 mg/L, 4.0 mg/L, 6.0 mg/L and 8.0 mg/L). In all treatments death of L. fortunei occurred after 20 h exposure . The highest mortality of L. fortunei was > 90% in the permanganate and oleander treatments and > 60% in the sodium hypochlorite and chloramine treatments. The optimal concentration of sodium hypochlorite, permanganate, chloramine and oleander extracts were respectively 11 mg/L, 4 mg/L, 4 mg/L, 4 mg/L, and the median lethal times were 111 h, 109 h, 122 h, 82 h.
谭纤茹,刘德富,张佳磊,李阳,魏小熙.2019.输水工程中沼蛤入侵的植物他感防治技术研究[J].水生态学杂志,40(1):102-112.
查看全文  查看/发表评论  下载PDF阅读器
Copyright © 2008 《水生态学杂志》编辑部 地址:湖北省武汉市雄楚大街578号 
邮编:430079 电话:027-82926630 E-mail: sstx@mail.ihe.ac.cn  京ICP备09084417号