The characteristic of phytoplankton community and its variation at artificial reef area of the coastal sea of Tianjin  

天津近岸人工鱼礁海域浮游植物群落及其变化特征（英文）

作　　者：ZHANG Xue XU Xiao-fu FANG En-jun HOU Chun-qiang CHEN Wei ZHANG Bo-lun 张雪;徐晓甫;房恩军;侯纯强;陈卫;张博伦(天津渤海水产研究所天津市海洋牧场技术工程中心)

机构地区：[1]Tianjin Bohai Sea Fisheries Research Institute,Tianjin Marine Ranching Technical Engineering Center,Tianjin 300457,China

出　　处：《Marine Science Bulletin》2019年第1期40-55,共16页海洋通报（英文版）

摘　　要：Three cruises were investigated respectively in May,July and November 2016 in the artificial reef area of 2010,2012,and 2014 and the non-artificial reef area(control area)in the coastal area of Tianjin.Each area had 3 sampling stations,a total of 12 sites.The result showed that 58 taxa of phytoplankton were identified which belongs to 2 phyla 28 genera,Among these species,bacillariophyta including 19 genera 44 species,pyrrhophyta including 9 genera and 14 species.Give priority to with diatom species,accounting for 75.9%of the total species,followed by dinoflagellates,accounting for 24.1%.Dominant phytoplankton species give priority to with coscinodiscus and Chaetoceros of bacillariophyta,mainly including Coscinodiscus wailesii,C.asteromphalus,C.granii,C.oculus-iridis,C.spp.,Chaetoceros castracanei,C.lorenzianus,C.curvisetus,Pseudo-nitzschiapungens,Guianardia delicatula,Rhizosolenia setigera,Proboscia alata f.indica and Noctilluca scintillans.Phytoplankton cell abundance revealed obviously seasonal changes,the average cell abundance respectively was 94.79×10^4 cells/m^4、39.53×10^4 cells/m^4 and 21.5×10^4 cells/m^3.Phytoplankton diversity index has obviously seasonal variation,and in November,shannon-wiener diversity index,Margalef index and Pielou index are higher than in May and July.Comparing the artificial reef areas with the control area,the phytoplankton cells abundance of the control area in May was significantly higher than the artificial reef areas.In July and November,the artificial reef area of 2014 phytoplankton cell abundance was significantly higher than other artificial reef area and the control area.Diversity index of phytoplankton in the control area and the artificial reef of 2012 was lower than the artificial reef area of 2010 and 2014,and lowest in non-artificial reef areas.Obviously,the construction of artificial reef had significant effect for the improvement of the phytoplankton community diversity,but the phytoplankton community diversity is not always increasing and fluctuating to a ce2016年5月、7月和11月分别对天津近岸海域2010年、2012年和2014年投放的人工鱼礁区及非人工鱼礁区(对照区)进行3个航次的调查,每个区域设置3个站位,共计12个站位。结果显示:共鉴定浮游植物2门28属58种,其中硅藻门19属44种,甲藻门9属14种。物种以硅藻为主,占总物种的75.9%,其次为甲藻,占总物种的24.1%。浮游植物优势种以硅藻门的圆筛藻属和角毛藻属为主,主要有威氏圆筛藻(Coscinodiscus wailesii)、星脐圆筛藻(C.asferomphalus)、格氏圆筛藻(C.granii)、虹彩圆筛藻(C.oculus-iridis)、圆筛藻(C.spp.)、卡氏角毛藻(Chaetoceros castracanei)、劳氏角毛藻(C.lorenzianus)、旋链角毛藻(C.curvisetus)、尖刺伪菱形藻(Pseudo-nizschia pungens)、柔弱几内亚藻(Guianardia delicatula)、刚毛根管藻(Rhizosolenia setigera)、翼鼻状藻印度变型(Proboscia alafaf.indica)和夜光藻(Nortilluca scintillans)。浮游植物细胞丰度存在明显的季节差异,11月份、7月份和5月份浮游植物细胞丰度分别为94.79×10^4 cell/m^3、39.53×10^4 cell/m^3和21.5×10^4 cel丨/m^3,浮游植物多样性指数也有明显的季节差异,11月份香农-威纳多样性指数,丰富度指数和均匀度指数都比5月份和7月份高。从人工鱼礁区与对照区对比来看,5月份浮游植物细胞丰度礁区外显著高于鱼礁区,7月份和11月份2014年鱼礁区浮游植物细胞丰度显著高于其它鱼礁区和礁区外。浮游植物多样性指数礁区外和2012年鱼礁区低于2010年和2014年鱼礁区浮游植物多样性指数,礁区外最低。可见,人工鱼礁的构建对于提高浮游植物群落多样性具有显著的效果,但是随着时间的延长,浮游植物群落多样性不是一直增高的,有一定程度的波动。

关 键 词：PHYTOPLANKTON artificial reef community structure 

分 类 号：Q94[生物学—植物学]