水产学报2018，Vol.42Issue(7)：1060-1076,17.DOI:10.11964/jfc.20170610881
东海近岸海域浮游动物群落时空分布
Analysis of the temporal and spatial variations of zooplankton community in coastal East China Sea
摘要
Abstract
In order to discuss the temporal and spatial variations of zooplankton community in coastal East China Sea and based on the data obtained from 3 cruises of zooplankton surveys conducted in the coastal waters of East China Sea in May, August and December of 2013, the species composition, biomass and abundance, dominant spe-cies and ecological groups were investigated. The results showed that a total of 108 species belonged to 15 groups in 7 phyla, including undefined species, together with 14 classes of pelagic larvae. The 7 phyla including Cnidaria, Ctenophora, Annelina, Mollusca, Arthropoda, Chaetognatha and Urochordata. Copepoda and Medusae were the most dominant groups in numbers of species and abundance. The most dominant group of zooplankton was Cope-poda, including 47 species accounting for 43.52%. Medusae ranks second with a total of 19 species, accounting for 17.59%. There was a considerable seasonal variation in species of zooplankton in the coastal waters of East China Sea. In summer, the species richness was significantly higher than spring and winter. The linear relationship of species and latitude was negative correlated in May, August and December, which reached an extremely signific-ant level. The whole area average abundance and biomass of zooplankton of coastal waters in East China Sea changed seasonally. Both the average abundance and biomass in winter were the lowest, the average biomass was the highest in summer, and the average abundance was the highest in spring. The community can be divided into 6 ecological groups according to the tolerance of zooplankton in hydrological environment and the differences of liv-ing areas, which were coastal species of low salinity, wide temperature and salinity species, high temperature and salinity species, warm coastal species, warm water species and cosmopolitan species. In spring and winter the coastal species of low salinity, wide temperature and salinity species accounted for absolute advantage in the southern Yellow Sea coastal waters, but warm water species were in higher proportion in summer. However, in Yangtze River estuary and adjacent waters, the warm water species were the dominant community in spring, sum-mer and winter. What's more, in the central and southern coastal waters, warm water species play a dominant role in spring and winter. But the high temperature and salinity species, cosmopolitan species community was obvi-ously dominant in summer. Calanus sinicus was the only common dominant species in these seasons. Dominant species changed more obviously, and the dominant species turnover rate was 90.9% from spring to summer, which was 50% from summer to autumn.关键词
浮游动物/优势种/生态类群/丰度/生物量/东海Key words
zooplankton/dominance species/ecological groups/abundance/biomass/East China Sea分类
农业科技引用本文复制引用
杨杰青,全为民,史赟荣,王云龙..东海近岸海域浮游动物群落时空分布[J].水产学报,2018,42(7):1060-1076,17.基金项目
公益性行业(农业)科研专项(201303047) （农业）
