长江口沿岸碎波带三种暖水性鱼类仔鱼的出现  

Occurrences on the fish larvae of three warm water species in the surf zone of the Yangtze Estuary

作　　者：刘磊[1] 林楠[1] 钟俊生[1] 蒋日进[1] 张冬良[1] 

机构地区：[1]上海水产大学生命科学与技术学院,上海200090

出　　处：《海洋渔业》2008年第1期62-66,共5页Marine Fisheries

基　　金：农业部东海区渔政渔港监督管理局项目(6680105221);上海市教育委员会一般项目(6680105221);上海市重点学科项目(Y1101)资助

摘　　要：2006年6—10月，按月在长江口沿岸碎波带设置的13个采样点，用小型拖网进行仔稚鱼多样性调查时，采集到遮目鱼仔鱼1ind、海鲢仔鱼40ind、大海鲢仔鱼144ind，这是在长江口水域首次发现遮目鱼仔鱼和海鲢的仔鱼。本文详细描述了该三种暖水性鱼类仔鱼的形态特征，探讨了其水平分布与环境因子的关系，提出了长江口附近水域存在产卵场的可能性，为该三种暖水性鱼类早期生活史中的地理分布以及生态习性提供科学依据。The fish larvae of three warm water species including a individual of Chanos chanos, 40 ind. of Elops saurus and 144 ind. of Megalops cyprinoides were collected in monthly surveying by a seine net at 13 stations in the surf zone of the Yangtze Estuary from June to October 2006. It is the first record that Chanos chanos and Elops saurus larvae were found in the Yangtze Estuary. In present paper, it is not only described the morphological characters of these larvae but also clarified the relationship between their horizontal distribution and water temperature and salinity. Some scientific basis on their geographical distribution and ecological pattern in their early life history are herewith provided.

关 键 词：长江口 碎波带 遮目鱼 海鲢 大海鲢 仔鱼 

分 类 号：S931[农业科学—渔业资源]