不同生境下福寿螺的可量性状特征、种群结构和密度效应

生态学杂志

不同生境下福寿螺的可量性状特征、种群结构和密度效应

房苗^1,2,徐猛¹,罗渡¹,牟希东¹,顾党恩¹,胡隐昌¹,章家恩³,罗建仁^1*

1. （¹中国水产科学研究院珠江水产研究所，农业部热带亚热带水产资源利用与养殖重点实验室，广州 510380； ^2上海海洋大学水产与生命学院，上海 201306； ^3华南农业大学农学院生态学系，广州 510642）

出版日期:2016-03-10 发布日期:2016-03-10

Measurable characters, population structure and density effect of Pomacea canaliculata in different habitats.

FANG Miao^1,2, XU Meng¹, LUO Du¹, MU Xi-dong¹, GU Dang-en¹, HU Yin-chang¹, ZHANG Jia-en³, LUO Jian-ren^1*

(¹ Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Guangzhou 510380, China; ^2 College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; ³ Department of Ecology, College of Agriculture, South China Agricultural University, Guangzhou 510642, China).

Online:2016-03-10 Published:2016-03-10

摘要/Abstract

摘要： 对广东省11个地区中4种不同生境下福寿螺（Pomacea canaliculata）种群的可量性状特征、年龄结构、性比和密度效应进行了对比研究。结果表明：福寿螺的可量性状特征在不同生境之间存在显著差异（P<0.05），体重与壳高之间关系符合异速生长方程，且不同生境下有不同的异速指数；福寿螺种群在不同生境条件下有不同的年龄结构，稻田、沟渠中种群表现为增长型，废田、池塘中种群表现为稳定型；生境因素对福寿螺的性比没有显著影响（P>0.05），但对性比与体重的关系影响显著（P<0.05）；福寿螺种群增长受密度制约，不同生境下的密度制约效应存在差异，沟渠中最小，池塘中最大，稻田和废田居中。本研究表明，生境条件对福寿螺的可量性状特征、种群结构均有显著的影响，不同生境下福寿螺种群的增长潜力也不同，需要制定有针对性的防控措施。

关键词: 正丁基磷酰三胺, 脲酶抑制剂, 脲酶抑制率, 质地, 尿素, 正丙基磷酰三胺

Abstract: A comparative study on measurable characters, age structure, sex ratio and density dependence of Pomacea canaliculata populations from 4 habitats in 11 areas of Guangdong Province were conducted. The results showed that measurable characters of P. canaliculata significantly differed among habitats (P<0.05). The relationship between body mass and shell height conformed to the allometric equation with different allometric indexes in different habitats. The age structure of P. canaliculata was different among different habitats, with expanding populations in the paddy fields and ditches and stable populations in the waste paddy fields and ponds. The habitat did not significantly affect sex ratio (P>0.05), but it significantly influenced the relationship between sex ratio and body weight (P<0.05). The population growth of P. canaliculata was densitydependent and the effect of density dependence was different among 4 habitats with the smallest value in the ditch, middle in the paddy field and waste paddy field, maximum in the pond. Our study suggested that the measurable characters and population structure of P. canaliculata populations were significantly affected by habitat conditions. Given its different growth potentials in different habitats, specific prevention and control measures should be drafted to manage this invasive species.

Key words: NBPT, urease inhibition rate, NPPT, urea, soil texture, urease inhibitors

房苗1,2,徐猛1,罗渡1,牟希东1,顾党恩1,胡隐昌1,章家恩3,罗建仁1*. 不同生境下福寿螺的可量性状特征、种群结构和密度效应[J]. 生态学杂志.

FANG Miao1,2, XU Meng1, LUO Du1, MU Xi-dong1, GU Dang-en1, HU Yin-chang1, ZHANG Jia-en3, LUO Jian-ren1*. Measurable characters, population structure and density effect of Pomacea canaliculata in different habitats.[J]. cje.

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