藁杆双脐螺分布特征与生境要素间的关系研究  

Study on the relationship between habitat factors and the distribution characteristics of Biomphalaria straminea

作　　者：高翼天 高帆 徐达 闵凤阳[1,5] 王家生 元艺[6] 朱孔贤[1] 刘小光[1] 章运超 GAO Yi-tian;GAO Fan;XU Da;MIN Feng-yang;WANG Jia-sheng;YUAN Yi;ZHU Kong-xian;LIU Xiao-guang;ZHANG Yun-chao(Changjiang River Scientific Research Institute,Wuhan,Hubei 430010,China;Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China;Changjiang Hospital of Changjiang water resourceces commission,Wuhan,Hubei 430010,China;College of Water Conservancy and Hydropower Engineering,Gansu Agricultural University,Lanzhou,Gansu 730070,China;College of Resources and Environment,Huazhong Agricultural University,Wuhan,Hubei 430079,China;Hubei Province Center for Disease Control and Prevention,Wuhan,Hubei 430079,China)

机构地区：[1]长江水利委员会长江科学院,湖北武汉430010 [2]清华大学水利水电工程系,北京100084 [3]长江水利委员会长江医院,湖北武汉430010 [4]甘肃农业大学水利水电工程学院,甘肃兰州730070 [5]华中农业大学资源与环境学院,湖北武汉430079 [6]湖北省疾病预防控制中心,湖北武汉430079

出　　处：《公共卫生与预防医学》2022年第3期22-27,共6页Journal of Public Health and Preventive Medicine

基　　金：国家自然科学基金项目(51809012);国家重大研发计划课题(2018YFC0407603);卫生部寄生虫病原与媒介生物学重点实验室开放研究课题(WSBKFKT-201707)资助。

摘　　要：目的 探究我国华南地区入侵藁杆双脐螺分布特征与生境要素间的关系。方法 于2019年8月至2021年3月丰水期、平水期和枯水期间,现场调查深圳及邻近地区河流中藁杆双脐螺孳生分布及生境要素特征,利用广义相加模型(GAM)研究影响藁杆双脐螺分布密度的主要生境要素。结果 藁杆双脐螺分布在空间上呈现出明显的聚集性和不均匀性,在时间上则以枯水时期藁杆双脐螺密度最高,平水期次之,而丰水期最少。GAM模型分析表明,影响藁杆双脐螺分布密度的主要生境因素为水深、水温、流速、溶解氧、总磷。当流速、水温分别为0.25m/s、26℃时藁杆双脐螺可能出现最大的分布密度。藁杆双脐螺分布密度与与溶解氧、总磷总体正相关。结论 藁杆双脐螺适宜生活在水质较差的水体环境中,今后应进一步加强监测,为防控藁杆双脐螺的扩散提供参考依据。Objective To explore the relationship between the distribution characteristics and the habitat factors of the invasive B.straminea in South China. Methods From August 2019 to March 2021,the breeding condition and habitat factors of B.straminea were investigated in the rivers of Shenzhen and its adjacent areas in the dry season, normal season and wet reason.The generalized additive model(GAM) was used to study the main habitat factors affecting the distribution density of B.straminea. Results The distribution characteristics of B.straminea showed obvious aggregation and unevenness in space.In terms of time, the density of snails was the highest in the dry season, followed by the normal water season and the least in the wet season.The GAM model analysis showed that the main habitat factors affecting the distribution density of B.straminea were water depth, water temperature, flow velocity, dissolved oxygen, and total phosphorus.When the flow velocity and water temperature were 0.25 m/s and 26 ℃,respectively, the largest distribution density of snails might appear.The distribution density of B.stramineawas positively correlated with dissolved oxygen and total phosphorus. Conclusion B.straminea is suitable to live in the water environment with poor water quality.In the future, the monitoring should be strengthened to provide reference for the prevention and control of the spread of the snails.

关 键 词：藁杆双脐螺 生境要素 广义可加模型 华南地区 

分 类 号：R181[医药卫生—流行病学]