吕泗渔场沿岸海域春夏季鱼类生态类群

应用生态学报

吕泗渔场沿岸海域春夏季鱼类生态类群

徐捷^1,2,孙岳³,徐兆礼^1**

(¹中国水产科学研究院东海水产研究所，上海 200090; ^2上海海洋大学海洋科学学院，上海 201306; ³国家海洋局海洋咨询中心，北京 100860)

出版日期:2014-01-18 发布日期:2014-01-18

Fish assembles in the coastal water of Lüsi fishing ground during spring and summer.

XU Jie^1,2, SUN Yue³, XU Zhao-li^1

(¹East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Shanghai 200090, China; ²College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China; ^3National Oceanic Consultation Center, Beijing 100860, China)

Online:2014-01-18 Published:2014-01-18

摘要/Abstract

摘要：

根据2010年春夏季吕泗渔场沿岸海域2个航次渔业资源调查资料，对该海域鱼类的种类组成和生态类群结构进行分析，并与我国不同纬度海域进行比较.结果表明：春季(5月)出现鱼类21种，生态类群以暖温种(9种)为主，分别占该季节鱼类总尾数和总质量的45.2%和72.9%；优势种主要由暖温性的小黄鱼、焦氏舌鳎和半滑舌鳎组成.夏季(9月)出现鱼类28种；暖水种(21种)大量出现，分别占该季鱼类总尾数和总质量的75.2%和71.7%，棘头梅童鱼、凤鲚等成为优势种.方差分析表明，两个季节吕泗渔场温度和盐度均差异明显，导致鱼类物种更替，呈现出暖温种、沿岸种和近海种逐渐减少，而暖水种和河口种逐渐增加的趋势.

Abstract: Based on data from bottom trawl surveys during spring and summer of 2010, the species composition and community structure of fish community in Lüsi fishing ground were investigated and compared with those at different latitudes. A total of 21 were identified in spring and 28 identified in summer. In spring, it was mainly composed of warmtemperate fish (9 species), accounting for 45.2% and 72.9% in the individual density and biomass density, respectively. Warmtemperate species Larimichthys polyactis, Cynoglossus joyneri and Cynoglossus semilaevis were dominant in spring. In summer, warm water species appeared in large numbers by 21, accounting for 75.2% and 71.7% in the individual density and biomass density, respectively. Collichthys lucidus and Coilia mystus were the predominant species in summer. One wayANOVA indicated that the temperature and salinity between spring and summer in Lüsi fishing ground were significantly different, which resulted in the succession of fish community, i.e. the gradual decrease of the warmtemperate, neritic and nearshore species and the concomitant gradual increase of warm-water and estuarine species.

徐捷1,2,孙岳3,徐兆礼1**. 吕泗渔场沿岸海域春夏季鱼类生态类群[J]. 应用生态学报.

XU Jie1,2, SUN Yue3, XU Zhao-li1. Fish assembles in the coastal water of Lüsi fishing ground during spring and summer. [J]. Chinese Journal of Applied Ecology.