| HUO Yuanzi,WEI Zhangliang,LIU Qiao,YANG Fangfang,LONG Lijuan,ZHANG Qi,BI Hongsheng,HE Qing,HE Peimin. 2018. Distribution and controlling factors of phytoplankton assemblages associated with mariculture in an eutrophic enclosed bay in the East China Sea. Acta Oceanologica Sinica, 37(8):102－112 |
| Distribution and controlling factors of phytoplankton assemblages associated with mariculture in an eutrophic enclosed bay in the East China Sea |
| 东海富营养化封闭海水养殖海域浮游植物分布与控制因子 |
| Received:October 17, 2017 Revised:December 11, 2017 |
| DOI：10.1007/s13131-018-1238-9 |
| Key words:Sansha Bay phytoplankton eutrophication microalgae blooms bioremediation East China Sea |
| 中文关键词: 三沙湾 浮游植物 富营养化 微藻水华 生物修复 东海 |
| 基金项目:The Public Science and Technology Research Funds Projects of Ocean under contract No. 201205009-5; the Key Projects in the National Science and Technology Pillar Program under contract No. 2012BAC07B03; the Shanghai Universities First-class Disciplines Project (Discipline name:Marine Science (0707)); the Plateau Peak Disciplines Project of Shanghai Universities (Marine Science 0707). |
| Author Name | Affiliation | E-mail | | HUO Yuanzi | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
Maine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, China | yzhuo@shou.edu.cn | | WEI Zhangliang | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | LIU Qiao | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
Maine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, China | | | YANG Fangfang | Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | LONG Lijuan | Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | ZHANG Qi | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
Maine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, China | | | BI Hongsheng | Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD 20688, USA | | | HE Qing | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
Maine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, China | | | HE Peimin | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
Maine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, China | |
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| Abstract: |
| The distribution of phytoplankton and its correlation with environmental factors were studied monthly during August 2012 to July 2013 in the Yantian Bay. A total of 147 taxa of phytoplankton were identified, and the average abundance was in the range of 0.57×104 to 7.73×104 cell/L. A total of 19 species dominated the phytoplankton assemblages, and several species that are widely reported to be responsible for microalgae blooms were the absolutely dominant species, such as Skeletonema costatum, Navicula sp., Thalassionema nitzschioides, Pleurosigma sp., and Licmophora abbreviata. The monthly variabilities in phytoplankton abundance could be explained by water temperature, dissolved oxygen, salinity, dissolved inorganic nitrogen (DIN), and suspended solids. The results of a redundancy analysis showed that pH and nutrients, including DIN and silicate (SiO4), were the most important environmental factors controlling phytoplankton assemblages in specific months. It was found that nutrients and pH levels that were mainly influenced by mariculture played a vital role in influencing the variation of phytoplankton assemblages in the Yantian Bay. Thus, a reduction of mariculture activities would be an effective way to control microalgae blooms in an enclosed and intensively eutrophic bay. |
| 中文摘要: |
| 本文研究报道了盐田港2012年8月至2013年7月浮游植物时空分布特征及其与环境因子之间的关系。研究期间共鉴定出147种（属）的浮游植物，平均丰度为0.57×104~7.73×104 cells L-1，优势种为19种，其中一些种类为赤潮种类，例如中肋骨条藻（Skeletonema costatum）、舟形藻（Navicula sp.）、菱形海线藻（Thalassionema nitzschioides）、斜纹藻（Pleurosigma sp.）、短楔形藻（Licmophora abbreviata）等。浮游植物丰度的月变化与水体温度、溶解氧、盐度、溶解无机氮（DIN）和悬浮物显著相关。RDA分析结果表明，水体pH和营养盐，主要包括溶解无机氮和硅酸盐（SiO4），是影响浮游植物群落结构最为重要的环境因子。分析表明水体pH和营养盐水平受到盐田港海水养殖活动的强烈影响。因此，减少海水养殖活动是控制封闭型富营养化海湾微藻水华发生的有效方法。 |
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