海洋科学2016，Vol.40Issue(3)：53-58,6.DOI:10.11759/hykx20141206002
2011~2012年度大亚湾海域浮游植物群落的季节变化
Seasonal changes of phytoplamkton community in Daya Bay, South China Sea, between 2011 and 2012
摘要
Abstract
An annual survey of the phytoplankton community was conducted at nine stations in Daya Bay in the South China Sea between December 2011 and November 2012. A total of 93 taxa were identified in this survey, in which 55 taxa of 40 genera were diatoms and 33 taxa of 14 genera were dinoflagellates. Species numbers were higher in autumn and lower in spring and summer. Cell densities ranged between 41 and 396 cells/mL, with the annual mean being 72.5 cells/mL. Cell densities were higher in summer and lower in spring. Diatioms dominated the phytoplankton community, which contributed 83.6% to the total phytoplankton average. The predominant dia-toms included Pseudo-nitzschia spp., Leptocylindrus danicus, and Skeletonema costatum ect. Dinoflagellates gen-erally occurred in low numbers, with seasonal average proportions of approximately 1.5% to 32.6%. However, high densities of Akashiwo sanguinea were recorded in spring samples, with amaximum cell number of 82.3 cells/mL. The Shannon–Weaver species diversity index (H′) and Pielou’s evenness (J) were higher in winter and autumn and lower in summer. H′ and J values were higher in the offshore stations and lower in the inshore stations. These re-sults suggest that both species and cell numbers of dinoflagellates have been clearly increased in Daya Bay, though the phytoplankton community is dominated by diatoms up till now. The high nutrient levels in the inshore areas resulted in a decrease of the species diversity of phytoplankton.关键词
浮游植物/群落结构/多样性/大亚湾Key words
phytoplankton/community structure/diversity/Daya Bay分类
生物科学引用本文复制引用
王朝晖,梁伟标,邵娟..2011~2012年度大亚湾海域浮游植物群落的季节变化[J].海洋科学,2016,40(3):53-58,6.基金项目
国家自然科学基金项目(41276154,41476132)@@@@National Natural Science Foundation of China, No.41276154, No.41476132 （41276154,41476132）
