天津厚蟹与褶痕相手蟹对杭州湾北岸典型盐沼植物的摄食偏好  

Preference of Helice tientsinensis and Sesarma plicata for typical salt marsh plants in the north of Hangzhou Bay

作　　者：骆蓓菁 李翔 罗鼎晖 徐平[1,2] 陈雪初[1,2] 由文辉[1,2] LUO Bei-jing;LI Xiang;LUO Ding-hui;XU Ping;CHEN Xue-chu;YOU Wen-hui(School of Ecological and Environmental Sciences,East China Normal University,Shanghai 200241,China;Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration,East China Normal University,Shanghai 200241,China)

机构地区：[1]华东师范大学生态与环境科学学院,上海200241 [2]华东师范大学上海城市化生态过程与生态恢复重点实验室,上海200241

出　　处：《华东师范大学学报（自然科学版）》2019年第6期123-131,共9页Journal of East China Normal University(Natural Science)

基　　金：国家重点研发项目(2017YFC0506002)

摘　　要：在奉贤潮滩样地调查的基础上,通过开展室内喂食实验分析了天津厚蟹(Helice tientsinensis)与褶痕相手蟹(Sesarma plicata)两种优势蟹类对典型盐沼植物互花米草(Spartina alterniflora)和芦苇(Phragmites australis)的摄食偏好性及相关影响因子,为进一步揭示蟹类摄食作用下互花米草和芦苇竞争生长的控制机制提供参考.结果显示:两种蟹对不同植株部位的偏好性均为叶片>细根>茎秆;但对不同植物的偏好有所差异,天津厚蟹偏好摄食芦苇叶片,而褶痕相手蟹更偏好互花米草叶片;对茎秆和细根的摄食量均是互花米草>芦苇.蟹类的摄食偏好除了受蟹重和种类的影响,还与植物中的粗蛋白质含量成正相关.Based on an investigation of Fengxian tidal flats,this study analyzed the feeding preference and influencing factors of two dominant crabs-Helice tientsinensis and Sesarma plicata-on typical salt marsh plants Spartina alterniflora and Phragmites australis via an indoor feeding experiment.The study provides a reference to further understanding of the control mechanisms for competition between Spartina and Phragmites.The results showed that the preference of the two crabs for different plant organs was:Leaves>Roots>Stalk.However,the preference varies across different plants;namely,Helice tientsinensis prefers Phragmites leaves,while Sesarma plicata prefers Spartina leaves.The consumption of stalk and roots of Spartina is higher than Phragmites.In addition to crab weight and species,the feeding preference is also positively correlated with the content of crude protein in plants.

关 键 词：天津厚蟹 褶痕相手蟹 互花米草 芦苇 摄食偏好 

分 类 号：Q958.1[生物学—动物学]