生态环境学报Issue(5)：774-779,6.
干湿交替对福寿螺摄食和生长的影响
Influence of drying-wetting alternation on feed and growth of golden apple snail (Pomacea canaliculata)
摘要
Abstract
Golden apple snail (Pomacea canaliculata) is one of the 100 worst invasive alien species in the black list of World Conservation Union, and has resulted in a mass loss of rice production in South China. In order to develop water regulation method for controlling golden apple snails, we investigated the influences of drying-wetting alternation on the feed and growth of golden apple snails. Our results showed that weight growth rate, feeding rate, food conversion ratio and specific growth rate of the snails were significantly inhibited by the alternative drying-wetting treatments, sometimes with even negative effects. The shell height of the snails increased with water, but this increase is slow once the water disappear. The snail exhibited a compensation effect during the alternative drying-wetting process within a short-term, and this effect may result from the increase of feeding amount after a period starvation of the snails and would not appear when the drought stress on snails exceeded a certain extent. To recap, the snails would fail to grow normally under drought stress and the degree of influence would be enhanced with prolonged drought period. Moreover, the snails would come out again generally when their habitat becomes rewetting after drought within 180 minutes, so we can control them in this special period (opportunity) to avoid the injure of aquatic plants by snails. The research results may provide a theoretical reference for an integrated control of golden apple snail and water utilization and management.关键词
福寿螺/干湿交替/摄食/生长/防治Key words
golden apple snail (Pomacea canaliculata)/drying-wetting alternation/feeding/growth/prevention分类
农业科技引用本文复制引用
郭靖,章家恩,罗颢,刘文,彭莉,梁开明..干湿交替对福寿螺摄食和生长的影响[J].生态环境学报,2013,(5):774-779,6.基金项目
国家自然科学基金项目(U1131006；30770403；30900187)；广东省科技计划项目(2007B020709007；2011B020309009)；广东省高等学校高层次人才项目(粤教师函2010[79号])；广东省引进国(境)外高层次人才智力项目(粤外专[2010]51号) （U1131006；30770403；30900187）
