Chin J Schisto Control ›› 2014, Vol. 26 ›› Issue (1): 22-.

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Distribution of univalvia molluscs in area with natural decline of Oncomelania hupensis snails in Eastern Dongting Lake area

LI Lin-han1 |ZHOU Yi-biao1* |ZHENG Sheng-bang1 |WU Jin-yi 1 |SONG Xiu-xia1 |HE Zhong2 |YOU jia-bian3 |CAI Bin4 |ZHAO Gen-ming1 | JIANG Qing-wu1   

  1. 1 Department of Epidemiology|School of public Health|Fudan University|Key laboratory of Public Health Safety|Ministry of Edu? cation|Tropical Disease Research Center|Fudan University|Shanghai 200032|China;2 Junshan Anti ? schistosomiasis Office| Yueyang City|Hunan Province|China;3 Qianliang Lake Anti ? schistosomiasis Station|Yueyang City|Hunan Province;4 Jun? shan County Anti?schistosomiasis Station| Yueyang City|Hunan Province|China
  • Online:2014-02-22 Published:2014-02-22
  • Contact: ZHOU Yi?biao

东洞庭湖钉螺自然消亡地区单壳类软体动物分布调查

李林瀚1|周艺彪1*|郑盛邦1|伍劲屹1|宋秀霞1|何忠2|游加边3|蔡斌4|赵根明1|姜庆五1   

  1. 1 复旦大学公共卫生学院流行病学教研室、 教育部公共卫生安全重点实验室、 复旦大学热带病研究中心 (上海 200032); 2 湖南省岳 阳市君山区血吸虫病防治工作领导小组办公室; 3湖南省岳阳市钱粮湖血吸虫病防治站; 4湖南省岳阳市君山区血吸虫病防治站
  • 通讯作者: 周艺彪
  • 作者简介:李林瀚| 女| 硕士研究生。研究方向: 血吸虫病流行病学
  • 基金资助:
    国家自然科学基金 (30872159); 国家重大科技专项 (2012ZX10004?220、 2008ZX10004?011)

Abstract: Objective To understand the distribution of univalvia molluscs in Eastern Dongting lake area where the Oncome? lania hupensis is extinct,so as to explore the causes of extinction and to provide the evidence for formulating schistosomiasis con? trol strategy. Methods The univalvia molluscs of the Qianliang Lake district,Jianxin District and Junshan Park were investigat? ed in August of 2013. All the collected snails were classified and identified. The data were analyzed by using the method of Shapiro? Wilk normality test and non?parametric test. The ecological biodiversity differences from each district were compared by the biodi? versity indexes. Results The univalvia molluscs collected were from 6 species in 3 families in Gastropoda class,namely Oncome? lania hupensis Gredler in Pomatiopsidae family,Parafossarulus striatulus,Alocinma longicornis,Parafossarulus sinensis,Bithynia fuchsisana in Bithyniidae family,and one genus provisionally named Radix in Lymaneidae family. In Junshan Park,a total of 4 553 snails were collected,among which 1 264 were Oncomelania snails. In Jianxin District,336 univalvia molluscs were collect? ed,and no Oncomelania snails were found. In Qianliang Lake district,there were only 7 Alocinma longicornis snails,2 Parafossa? rulus sinensis snails and 1 Parafossarulus striatulus snail collected. There were significant differences among the distributions of the samples from the three districts(χ2 =166.225,P<0.01).The Simpson’ s diversity indexes in Qianliang Lake area,Jianxin District and Junshan Park were 0.402 8,0.718 6 and 0.678 8,respectively,and the Shannon?Wiener indexes of the 3 areas were 0.721 5,1.431 3 and 1.199 9,respectively. Conclusions With the extinction of Oncomelania snails,the species and quanti? ties of other snails become rare in Qianliang Lake area. Whether their causes are relevant is worth further studying.

Key words: Oncomelania hupensis;Natural extinction;Schistosomiasis;Univalvia Mollusc;Distribution; Eastern Dongting Lake

摘要: 目的 目的 了解东洞庭湖钉螺自然消亡地区单壳类软体动物的分布, 探索钉螺消亡的可能原因, 为制定血吸虫病防 治策略提供参考依据。方法 方法 于2013年8月对钱粮湖、 建新、 君山公园地区进行水体单壳类软体动物调查, 对样本进行分 类鉴定后, 对数据进行Shapiro?Wilk正态性检验和非参数检验。用生物多样性指数对不同现场的生物多样性进行比较。 结果 结果 所收集样本初步鉴定为腹足纲3科6种:圆口螺科包括湖北钉螺, 豆螺科包括纹沼螺、 长角涵螺、 中华沼螺、 赤豆螺, 椎实螺科1种未鉴定到种, 暂定为萝卜螺。君山公园外洲水体共采集到单壳类软体动物4 553只, 其中钉螺1 264只; 建新 未采集到钉螺, 其余单壳类软体动物共计336只; 而钱粮湖仅采集到7只长角涵螺、 2只中华沼螺和1只纹沼螺。3个现场 螺类分布的差异有统计学意义 (χ2 =166.225, P<0.01)。钱粮湖地区、 建新地区及君山公园的辛普森多样性指数分别为 0.402 8、 0.718 6及0.678 8, 香农?威纳多样性指数分别为0.721 5、 1.431 3及1.199 9。结论 结论 钱粮湖地区钉螺消亡的同时, 其 他种类单壳类软体动物无论是种类上还是数量上都已十分稀少, 两者原因是否相关还有待进一步研究。

关键词: 钉螺; 自然消亡; 血吸虫病; 软体动物; 分布; 东洞庭湖

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