Seasonal and spatial variation in species diversity, abundance, and element accumulation capacities of macroalgae in mangrove forests of Zhanjiang, China

查看全文 作　　者：ZHANG [1]Yubin;LI [1]Yuan;SHI [1]Fei;SUN [1]Xingli;LIN [2]Guanghui

机构地区：[1]Monitoring Center for Marine Resources and Environments,Guangdong Ocean University;[2]Graduate School at Shenzhen,Tsinghua University

出　　处：《Acta Oceanologica Sinica》索引2014年第33卷第8期,共10页

基　　金：The Public Science and Technology Research Funds Projects of Ocean in China under contract Nos 201305021 and 201105008-E 摘　　要：The objective of this study was to investigate whether there was distinctive seasonal and zonal variation in the species diversity, biomass, and element accumulation capacities of macroalgae in two major intertidal mangrove stand types(Avicennia marina assemblage and Sonneratia apetala assemblage) in the Zhanjiang region of southern China. Over a year, 31 species in 15 genera were identified in both mangrove assemblages, of which the dominant species were Cladophoropsis zollingeri and Enteromorpha clathrat. Macroalgal species were significantly most abundant in spring(p<0.05), followed by summer, winter, and autumn. Variation in the zonal distribution of macroalgal species was conspicuous in both intertidal mangrove assemblages, with the greatest abundance in the middle zone, and the least in the front zone. Patterns in the seasonal and zonal variation in macroalgal biomass in the S. apetala assemblage were similar to those of macroalgal species diversity in both mangrove assemblages. The seasonal patterns in tissue concentrations of 15 analyzed elements were not uniform among the macroalgae C. zollingeri, E. clathrata, and Gracilaria salicornia in the A. marina assemblage. All three species exhibited variation in their responses to ambient concentrations of different elements, implying their differential ability to absorb and selectively accumulate certain elements. 关键词：物种多样性大型海藻积累能力湛江地区红树林季节性空间变化中国

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Seasonal and spatial variation in species diversity, abundance, and element accumulation capacities of macroalgae in mangrove forests of Zhanjiang, China

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