基于RDA与GAMs模型的东海近岸海域浮游动物与温盐关系  

Analysis of the relationships between zooplankton and temperature-salinity based on RDA and GAMs model in coastal East China Sea

作　　者：杨杰青 史赟荣[1] 全为民[1] 王云龙[1] Yang Jieqing;Shi Yunrong;Quan Weimin;Wang Yunlong(Key Laboratory of East China Sea Fishery Resources Exploitation of Ministry of Agriculture and Rural Affairs, East China Sea FisheriesResearch Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China)

机构地区：[1]中国水产科学研究院东海水产研究所农业农村部东海渔业资源开发利用重点实验室

出　　处：《海洋学报》2019年第8期72-84,共13页

基　　金：国家公益性行业(农业)科研专项经费项目(201303047)

摘　　要：为进一步探讨东海近岸海域浮游动物季节演替与温盐的变化关系,根据2013年5月(春季)、8月(夏季)和12 月(冬季)东海近岸海域3 个航次的浮游动物调查资料,利用冗余分析模型分析了优势种与温盐的变化关系,广义加性模型分析了生物多样性参数与温盐之间的关系。结果表明:(1)优势种季节演替较为明显,由春季2 种演替成夏季10 种,再更替为冬季5 种,春季和冬季优势种的种类和生态类群相对单一,夏季较为丰富。(2)优势种时空分布是综合多层环境因子的结果,如春季中华哲水蚤(Calanus sinicus)与表层盐度和底层盐度正相关,夏季与表层温度和底层温度负相关,冬季与表层盐度正相关;春季五角水母(Muggiaea atlantica)与底层温度、底层盐度呈现较好的正相关;夏季盐度是决定暖水性和高温高盐性优势种分布的关键因子,且呈现较强的正相关;冬季真刺唇角水蚤(Labidoceraeuchaeta)、强壮滨箭虫(Aidanosagitta crassa)与表层温度关系密切,并呈现较强的负相关。(3)春季和冬季香农–威纳指数多样性指数与纬度呈负相关。(4)温度和盐度对生物多样性参数影响显著,但季节上又呈现出差异。In order to further explore the changes in relationships between seasonal succession of zooplankton and temperature-salinity in coastal East China sea, zooplankton survey data of three voyages in May (spring), August (summer) and December (winter) of 2013 were analyzed. Redundancy analysis model (RDA) was used to analyze the relationship between the changes of the dominant species and temperature-salinity, then the general algebraic modeling system (GAMs) was applied to analyze the relationship between temperature-salinity and parameters of the biological diversity. Results show that the dominant species’ succession changes seasonally from spring (2 kinds) to summer (10 kinds), then becomes 5 kinds in winter. Dominant species and the ecological groups are relatively single in spring and winter, but rich in summer. The temporal and spatial distribution of dominant species are the results of a comprehensive multi-level of environmental factors. For example, Calanus sinicus positively relates to surface salinity and bottom salinity in spring, negatively relates to surface temperature and bottom temperature in summer, positively relates to surface salinity in winter. Muggiaea atlantica presents better positive correlations with bottom temperature and bottom salinity in spring. What’s more, salinity is the key factor to determine the distribution of dominant species like warm water species and high temperature-salinity groups in summer, it also presents strong positive correlations. Labidocera euchaeta and Aidanosagitta crassa have strong negative correlations with surface temperature in winter. Shannon-Wiener diversity index negatively correlates with latitude in spring and winter. Biodiversity parameters are significantly affected by the temperature and salinity, but the influence presents differences seasonally.

关 键 词：东海 浮游动物 优势种 生物多样性参数 温度 盐度 

分 类 号：S932.8[农业科学—渔业资源]