桂林地区福寿螺冬季繁殖力研究  

Winter Fertility of Pomacea canaliculata in Guilin,China

作　　者：梁碧霞 黄锦龙 韩丽霞 武正军[1,2] LIANG Bixia;HUANG Jinlong;HAN Lixia;WU Zhengjun(Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University),Ministry of Education,Guilin Guangxi 541006,China;Guangxi Key Laboratory of Rare and EndangeredAnimal Ecology (Guangxi Normal University),Guilin Guangxi 541006,China)

机构地区：[1]珍稀濒危动植物生态与环境保护教育部重点实验室(广西师范大学),广西桂林541006 [2]广西珍稀濒危动物生态学重点实验室(广西师范大学),广西桂林541006

出　　处：《广西师范大学学报（自然科学版）》2019年第3期166-173,共8页Journal of Guangxi Normal University:Natural Science Edition

基　　金：广西自然科学基金重大专项(2011GXNSFE018005);广西研究生教育创新计划(XYCSZ 2018057)

摘　　要：为了解冬季福寿螺Pomacea canaliculata繁殖力大小及其影响因素,于2017年12月中旬采集广西桂林地区福寿螺卵块,置于室温下进行孵化实验,记录孵化期间的气温以及孵化率,测量卵块长、宽、质量、卵粒总数和卵粒直径,并进行相关性分析。结果表明:冬季福寿螺单块卵粒数为48~608粒,均值(mean±SD)为214.14±10.45粒;卵粒直径为2.31~3.32mm,均值(mean±SD)为2.69±0.018mm;孵化率为0~93.94%,均值(mean±SD)为29.21%±3.12%。其中冬季(12月—次年2月)孵化的卵粒占所有孵化卵粒的82.18%,春季(3月)孵化的卵粒仅占17.82%,表明福寿螺冬季产的卵主要采取冬季孵化策略。福寿螺孵化率与卵粒总数(r=0.365,P<0.001)呈显著正相关,与卵粒直径(r=-0.248,P=0.013)呈显著负相关,卵粒数多少是孵化率高低的关键。冬季孵化量与气温相关(r=0.607,P=0.002),春季孵化量随时间的延长而减少。In order to understand the fecundity of Pomacea canaliculata and its influencing factors,in the middle of December 2017,the egg stalks of P.canaliculata in Guilin,Guangxi,were collected and placed at room temperature for hatching experiments.The length,width and weight of the eggs mass and egg diameter were measured.Meanwhile,the total number of eggs and incubation rate were recorded.The correlations between incubation rate and these factors were analyzed,respectively.The results showed that the number of egg per egg mass in winter was 48-608,and the mean(mean±SD)was 214.14±10.45.The egg diameter was 2.31~3.32 mm,and the mean(mean±SD)was 2.69±0.018 mm.The incubation rate was 0-93.94%,and the mean(mean±SD)was 29.21%±3.12%.Among them,the hatched eggs accounted for 82.18%in winter(December-February)and 17.82%in spring(March),respectively.The results indicated that the eggs produced by P.canaliculata in winter mainly adopt winter hatching strategy.The incubation rate of P.canaliculata was significantly positively correlated with the total number of eggs(r=0.365,P<0.001),and negatively correlated with the egg diameter(r=-0.248,P=0.013).The number of eggs was the key to the incubation rate.The winter incubation rate was related to temperature(r=0.607,P=0.002).The incubation amount was decreased with time in spring.

关 键 词：冬季 福寿螺 繁殖参数 繁殖策略 

分 类 号：Q95-331[生物学—动物学]