【作者】 昝肖肖； 徐宾铎； 陈晓娟； 薛莹； 纪毓鹏；

【Author】 ZAN Xiao-xiao,XU Bin-duo,CHEN Xiao-juan,XUE Ying,JI Yu-peng (College of Fisheries,Ocean University of China,Qingdao 266003,China)

【机构】 中国海洋大学水产学院；

【摘要】 根据2008年9月至2009年8月胶州湾中部海域全年逐月定点底拖网调查资料,分析了该海域十足目动物的种类组成及其多样性特征。结果表明,调查共捕获十足目动物35种。平均网获量与底层水温呈显著正相关,夏季最高,冬季最低。优势种组成有较明显的季节变化,主要有鹰爪糙对虾Trachysalambria curvirostris、日本蟳Charybdis iaponica、脊腹褐虾Crangon affinis和双斑蟳Charybdisbimaculata等。多样性指数值秋末冬初季节与春季较高,夏季较低,冬季最低。十足目动物更替率秋末至春初变动较大,夏季变化最小。更多还原

【Abstract】 The study on species composition and diversity of Decapoda was carried out based on monthly bottom trawl surveys in the central waters of Jiaozhou Bay from September 2008 to August 2009.The results showed that there were 35 species of Decapoda collected in all.There was a positive correlation between the water temperature and the mean catch weight per haul,which was the highest in summer and the lowest in winter.The dominant species varying among seasons were mainly white-hair rough shrimp Trachysalambria curvirostris,Japanese stone crab Charybdis japonica,and Japanese sand shrimp Crangon affinis and so on.The diversity index value was relatively higher at the turn of autumn and winter as well as in spring and relatively lower in summer and the lowest in winter.The interspecific replacement rate of Decapoda was the highest during autumn and spring,which was the lowest in summer.更多还原