摘要
为了掌握浙江玉环披山省级海洋特别保护区岩礁潮间带贝类资源状况,于2015年11月、2016年2月、5月、8月,共4次对该区岩礁潮间带的5个断面进行了定量与定性采样调查,并对贝类的种类、数量、区系组成、优势种和物种多样性进行了分析。共鉴定出披山岩礁潮间带贝类33种,隶属于3纲9目17科。根据温度适应性质分,属于4个类群:广温广布性种18种,占54.6%;温带种1种,占3.0%;亚热带种13种,占39.4%;热带种1种,占3.0%。此次调查贝类总平均生物量为413.84 g/m^2,总平均栖息密度为266.71个/m^2。条纹隔贻贝是4个季度的绝对优势种。贝类物种Margalef丰富度指数D为1.75,Shannon-Wiener多样性指数H'为1.56,Pielou均匀度指数J'为0.67。研究表明,玉环披山潮间带贝类多样性指数属正常范围,显示未过度开发。
Seasonal rocky shore shellfish surveys were conducted in Pishan Provincial Special Marine Ptotected Area, Zhejiang Province, from November 2015 to August 2016. In totally four surveys, five sections were set in the study area. Both quantitative and qualitative samples were collected. Shellfish species composition, abundance, biomass, fauna composition, dominant species and biodiversity index were analyzed. Totally33 species of shellfish were identified, witch belongs to 17 families. Classified by temperature adaption characteristics, these species can be divided into 4 groups. In them 18 species were cosmopolitan species, 13 species subtropical species, 1 temperate species and 1 tropical species, witch shared a proportion of 54.6%, 39.4%,3.0% and 3.0% of total species respectively. The average biomass was 413.84 g/m^2, while average abundance was 266.71 inds/m^2. Septifer virgatus was the dominant species in all four seasons. The Margalef index, Shannon-Wiener and index Pielous index were 1.75, 1.56 and 0.67, respectively. These results showed the biodiversity index in Pishan rocky shore were in normal range. The study area hadn＇t experienced excessive exploitation yet.
出处
《浙江海洋学院学报（自然科学版）》
CAS
2017年第1期1-8,共8页
Journal of Zhejiang Ocean University(Natural Science Edition)
基金
国家自然科学基金项目(31270527)
玉环县海洋与渔业局委托项目(2015-2017)
关键词
玉环披山
岩礁潮间带
优势种
生物多样性
Pishan
Yuhuan County
rocky intertidal zone
dominant species
biodiversity index
