亚热带水库浮游植物群落的季节变化及其与环境的关系:两种功能群分类法的比较
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摘要
浮游植物是水库生态系统最重要的生物组成,因其对水体环境的变化敏感而常被用于指示水体生态系统状态.为了解功能群(FG)和形态功能群(MBFG)两种浮游植物功能群分类方法在指示水库环境变化中的适用性和差异性,本研究以青狮潭水库为例,于2016年3月—2017年2月对该水库浮游植物和环境因子进行逐月采样调查.应用两种浮游植物功能群分类方法分析了青狮潭水库浮游植物群落结构、季节演替及其影响因子,并比较了两种功能群分类方法在指示水库环境状态中的应用及差异.结果表明:青狮潭水库共检出浮游植物7门109种,可划分为17个FG功能群和5个MBFG功能群.两种功能群分类法的结果都表明青狮潭水库为中-富营养水体;在一年周期的浮游植物群落季节演替中,FG优势功能类群指示大坝和库中群落分别经过8、9个演替阶段,而MBFG优势功能类群指示大坝和库中群落均经过8个演替阶段.冗余分析表明,在相同环境梯度上,FG功能类群的响应比MBFG功能类群更灵敏,尤其是对pH值和硝态氮浓度的响应.在探究亚热带水库浮游植物群落演替过程及其与环境的关系上,采用FG功能群分类方法更为合适.
Phytoplankton is the most important biological component in the reservoir ecosystem, which could indicate the status of aquatic ecosystem due to its sensitive to environmental variation. To understand the application and difference between two methods of phytoplankton functional group classification, functional groups(FG) and morphology-based functional groups(MBFG), in indicating the changes of reservoir environment, we investigated water quality and phytoplankton in Qingshitan Reservoir monthly from March 2016 to February 2017. Two phytoplankton functional groups classifications(FG and MBFG) were used to analyze phytoplankton community composition, seasonal succession, and its driving factors. We compared the application and differences of two methods of functional group classifications in indicating environmental changes. The results showed that there were 109 species belonged to seven phylum, which could be classified into 17 FG or 5 MBFG functional groups. Results from both methods indicated that the reservoir was meso-eutrophic. The phytoplankton seasonal succession under 8 or 9 steps with FG or 8 steps with MBFG. Results from the redundancy analysis showed that the response of phytoplankton community reflected with FG to environmental variation was more sensitive than that with MBFG, especially in the response to the changes of pH and nitrate concentration. In conclusion, FG was more appropriate in describing community succession and exploring the relationship between phytoplankton and environment.
Phytoplankton is the most important biological component in the reservoir ecosystem, which could indicate the status of aquatic ecosystem due to its sensitive to environmental variation. To understand the application and difference between two methods of phytoplankton functional group classification, functional groups(FG) and morphology-based functional groups(MBFG), in indicating the changes of reservoir environment, we investigated water quality and phytoplankton in Qingshitan Reservoir monthly from March 2016 to February 2017. Two phytoplankton functional groups classifications(FG and MBFG) were used to analyze phytoplankton community composition, seasonal succession, and its driving factors. We compared the application and differences of two methods of functional group classifications in indicating environmental changes. The results showed that there were 109 species belonged to seven phylum, which could be classified into 17 FG or 5 MBFG functional groups. Results from both methods indicated that the reservoir was meso-eutrophic. The phytoplankton seasonal succession under 8 or 9 steps with FG or 8 steps with MBFG. Results from the redundancy analysis showed that the response of phytoplankton community reflected with FG to environmental variation was more sensitive than that with MBFG, especially in the response to the changes of pH and nitrate concentration. In conclusion, FG was more appropriate in describing community succession and exploring the relationship between phytoplankton and environment.
引文
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[31]El-Karim MSA.Survey to compare phytoplankton functional approaches:How can these approaches assess River Nile water quality in Egypt?Egyptian Journal of Aquatic Research,2015,41:247-255
[32]Bortolini JC,Rodrigues LC,Jati S,et al.Phytoplankton functional and morphological groups as indicators of environmental variability in a lateral channel of the Upper ParanáRiver floodplain.Acta Limnologica Brasiliensia,2014,26:98-108
[2]Naselli-Flores L,Barone R.Pluriannual morphological variability of phytoplankton in a highly productive Mediterranean reservoir(Lake Arancio,Southwestern Sicily).Hydrobiologia,2007,578:87-95
[3]Naselli-Flores L,Barone R.Invited review:Fight on plankton or phytoplankton shape and size as adaptive tools to get ahead in the struggle for life.Cryptogamie Algologie,2013,32:157-204
[4]Cellamare M,Morin S,Coste M,et al.Ecological assessment of French Atlantic lakes based on phytoplankton,phytobenthos and macrophytes.Environmental Monitoring&Assessment,2012,184:4685-4708
[5]Hu R,Han BP,Naselli-Flores L.Comparing biological classifications of freshwater phytoplankton:A case study from South China.Hydrobiologia,2013,701:219-233
[6]Kruk C,Peeters ETHM,Nes EHV,et al.Phytoplankton community composition can be predicted best in terms of morphological groups.Limnology&Oceanography,2011,56:110-118
[7]Padisák J,Borics G,Grigorszky I,et al.Use of phytoplankton assemblages for monitoring ecological status of lakes within the water framework directive:The assemblage index.Hydrobiologia,2006,553:1-14
[8]Padisák J,Crossetti LO,Naselli-Flores L.Use and misuse in the application of the phytoplankton functional classification:A critical review with updates.Hydrobiologia,2009,621:1-19
[9]Reynolds CS,Huszar V,Kruk C,et al.Towards a functional classification of the freshwater phytoplankton.Journal of Plankton Research,2002,24:417-428
[10]Kruk C,Huszar VLM,Peeters ETHM,et al.A morphological classification capturing functional variation in phytoplankton.Freshwater Biology,2010,55:614-627
[11]Kruk C,Mazzeo N,Lacerot G,et al.Classification schemes for phytoplankton:A local validation of a functional approach to the analysis of species temporal replacement.Journal of Plankton Research,2002,24:901-912
[12]Kruk C,Segura AM.The habitat template of phytoplankton morphology-based functional groups.Hydrobiologia,2012,698:191-202
[13]Xiao LJ,Wang T,Hu R,et al.Succession of phytoplankton functional groups regulated by monsoonal hydrology in a large canyon-shaped reservoir.Water Research,2011,45:5099-5109
[14]Yang W(杨文),Zhu J-Y(朱津永),Lu K-H(陆开宏),et al.The establishment,development and application of classification approach of freshwater phytoplankton based on the functional group:A review.Chinese Journal of Applied Ecology(应用生态学报),2014,25(6):1833-1840(in Chinese)
[15]Zutinic P,Udovic MG,Borojevic'KK,et al.Erratum to:Morpho-functional classifications of phytoplankton assemblages of two deep karstic lakes.Hydrobiologia,2014,740:147-166
[16]Lin S-J(林少君),He L-J(贺立静),Huang P-S(黄沛生),et al.Comparison and improvement on the extraction method for chlorophyll a in phytoplankton.Ecologic Science(生态科学),2005,24(1):9-11(in Chinese)
[17]Wei F-S(魏复盛).Water and Wastewater Monitoring and Analysis Method(4th Ed).Beijing:China Environmental Science Press,2002:210-220,243-284(in Chinese)
[18]Niu H-Y(牛海玉),Xiao L-J(肖利娟),Han B-P(韩博平).Data quality analysis of phytoplankton counted with the inverted microscopy-based method.Journal of Lake Sciences(湖泊科学),2016,28(1):141-148(in Chinese)
[19]Hu H-J(胡鸿钧),Wei Y-X(魏印心).Freshwater Alage in China:Systematics,Taxonomy and Ecology.Beijing:Science Press,2006(in Chinese)
[20]Santana LM,Nabout JC,Ferragut C.Taxonomic and functional classifications of phytoplankton in tropical reservoirs with different trophic states.Brazilian Journal of Botany,2017,41:1-12
[21]Paczuska B.Long-term changes in the dynamics and structure of cyanobacteria in Koronowo reservoir:Oceanological and hydrobiological studies.Oceanological&Hydrobiological Studies,2015,44:127-138
[22]Bovo-Scomparin VM,Train S.Long-term variability of the phytoplankton community in an isolated floodplain lake of the Ivinhema River State Park,Brazil.Hydrobiologia,2008,610:331-344
[23]Yang Y(杨毓),Lu J-S(卢金锁),Zhang Y(张颖).Seasonal succession characteristics of the morphologically-based functional groups(MBFG)in deep-water reservoir.Environmental Science(环境科学),2017,38(1):121-128(in Chinese)
[24]Mihaljevic M,Stevic F,?poljaric'D,et al.Application of morpho-functional classifications in the evaluation of phytoplankton changes in the Danube River.Acta Zoologica Bulgarica,2014,66:153-158
[25]Becker V,Huszar VLM,Crossetti LO.Responses of phytoplankton functional groups to the mixing regime in a deep subtropical reservoir.Hydrobiologia,2009,628:137-151
[26]Becker V,Caputo L,Ordó1ez J,et al.Driving factors of the phytoplankton functional groups in a deep Mediterranean reservoir.Water Research,2010,44:3345-3354
[27]Rangel LM,Soares MCS,Paiva R,et al.Morphologybased functional groups as effective indicators of phytoplankton dynamics in a tropical cyanobacteria-dominated transitional river-reservoir system.Ecological Indicators,2016,64:217-227
[28]Hu R(胡韧),Lan Y-Q(蓝于倩),Xiao L-J(肖利娟),et al.The concepts,classification and application of freshwater phytoplankton functional groups.Journal of Lake Sciences(湖泊科学),2015,27(1):11-23(in Chinese)
[29]Gallego I,Davidson TA,Jeppesen E,et al.Taxonomic or ecological approaches?Searching for phytoplankton surrogates in the determination of richness and assemblage composition in ponds.Ecological Indicators,2012,18:575-585
[30]Huang X-H(黄享辉),Hu R(胡韧),Lei L-M(雷腊梅),et al.Seasonal succession of phytoplankton functional groups in typical small and medium-sized reservoirs in southern China.Ecology and Environmental Sciences(生态环境学报),2013,22(2):311-318(in Chinese)
[31]El-Karim MSA.Survey to compare phytoplankton functional approaches:How can these approaches assess River Nile water quality in Egypt?Egyptian Journal of Aquatic Research,2015,41:247-255
[32]Bortolini JC,Rodrigues LC,Jati S,et al.Phytoplankton functional and morphological groups as indicators of environmental variability in a lateral channel of the Upper ParanáRiver floodplain.Acta Limnologica Brasiliensia,2014,26:98-108