摘要
为探究渤海中南部海域浮游植物群落结构及其与环境因子的关系,于2018年5月和9月采用浅水Ⅲ型浮游生物网对渤海中南部海域进行了2个航次的浮游植物调查,并应用典范对应分析(CCA)研究环境因子对浮游植物群落结构的影响。结果显示,共鉴定浮游植物3门类34属80种,其中硅藻门65种,甲藻门14种,金藻门1种。5月鉴定浮游植物27种,第一优势种为夜光藻(Noctilucascientillans),9月鉴定71种,第一优势种为洛氏角毛藻(Chaetoceros lorenzianus)。调查海域Shannon-Wiener多样性指数均值为2.42,均匀度指数均值为0.61,物种丰富度指数均值为1.87。由于夜光藻等优势度明显,5月调查海域浮游植物丰度均值(3.92×10^(4)ind/m^(3))高于9月(0.51×10^(4)ind/m^(3))。空间分布上,5月浮游植物丰度高值出现在调查海域中部和北部,西部浮游植物丰度较低,9月浮游植物丰度高值出现在调查海域的北部和西部,东部和南部丰度值均较低。典范对应分析结果显示,表层水温、溶解氧、pH、油类和无机氮是影响渤海中南部海域浮游植物群落结构的主要环境因子。
In order to explore further the relationship between phytoplankton community and environmental factors in central and southern Bohai Sea,the phytoplankton and environmental factors surveying data collected two voyages in May and Sept.,2018 were analyzed.The influence of environmental factors on the phytoplankton community was determined through canonical correlation analysis(CCA).In total,80 species belonging to 34 genera,3 phyla were identified,of them,27 phytoplankton species were identified in May,and 71 species were identified in Sept..The first dominant species in May was Noctiluca scientillans,and the first dominant species in Sept.was Chaetoceros lorenzianus.The annual average Shannon-Wiener diversity index of the surveyed sea area was 2.42.The average abundance of phytoplankton was higher in May(3.92×10^(4)ind/m^(3))than in Sept.(0.51×10^(4)ind/m^(3)).High abundance of phytoplankton appeared in the central and northern part of surveyed sea area,and low abundance appeared in the western part of surveyed sea area in May.High phytoplankton abundance appeared in the north and west part of surveyed sea area,and low abundance appeared in eastern and southern area in Sept.The canonical correlation analysis showed that the main factors affecting phytoplankton community were surface temperature,dissolved oxygen,acidity,petroleum and dissolved inorganic nitrogen.
作者
刘潇
潘玉龙
温若冰
刘霜
赵升
LIU Xiao;PAN Yulong;WEN Ruobing;LIU Shuang;ZHAO Sheng(North China Sea Environmental Monitoring Center,State Oceanic Administration,Qingdao 266061,China;Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation,Qingdao 266061,China)
出处
《海洋湖沼通报》
CSCD
北大核心
2023年第4期137-145,共9页
Transactions of Oceanology and Limnology
关键词
渤海中南部
浮游植物
群落结构
典范对应分析
central and southern Bohai Sea
phytoplankton
community structure
canonical correlation analysis
