Seasonal and diel changes in nekton assemblages of an intertidal salt marsh creek in the Yangtze River estuary,China
会议名称:《中国海洋湖沼动物学会鱼类学分会第七届会员代表大会暨朱元鼎教授诞辰110周年庆学术研讨会》
会议日期:2006年
摘 要:Salt marsh estuaries have long been recognized as areas which naturally support high densities and production levels of *** mesotidal and macrotidal estuaries systems,intertidal creeks provide major routes for tidal migratory nekton to move from subtidal channels into salt marshes,and provide abundance of food and protection form *** study investigated the utilization of an intertidal salt marsh creek by nekton assemblages based on seasonal sampling surveys with a fyke net between July 2004 and May *** hundred and sixty-eight sample collections were taken from the salt marsh creek,and yielded a total number of 65762 individuals belonging to 34 fish and 2 crustaceans *** residents and marine nursery species were the dominant ecological gulids. Dominant species included Liza haematocheila and Synechogobius ommaturus,which together accounted for 90.7% of all fish,and Palaemon carinicauda,which composed 94.7% of the crustaceans throughout the sampling *** results showed that nekton assemblages had strong season patterns and weak diel variations.