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Using river microalgae as indicators for freshwater biomonitoring: Review of published research and future directions

文献类型： 外文期刊

作者： Wu, Naicheng 1 ; Dong, Xuhui 1 ; Liu, Yang 4 ; Wang, Chao 6 ; Baattrup-Pedersen, Annette 7 ; Riis, Tenna 2 ;

作者机构： 1.Aarhus Univ, Aarhus Inst Adv Studies, Hoegh Guldbergs Gade 6B, DK-8000 Aarhus C, Denmark

2.Aarhus Univ, Dept Biosci, Ole Worms Alle 1, DK-8000 Aarhus C, Denmark

3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Jiangsu, Peoples R China

4.Shenzhen Univ, Inst Adv Studies, Shenzhen 518060, Peoples R China

5.Shenzhen Univ, Coll Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China

6.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangzhou 510380, Guangdong, Peoples R China

7.Aarhus Univ, Dept Biosci, Vejlsovej 25, DK-8600 Silkeborg, Denmark

关键词： Riverine microalgae;Lotic ecosystem functions;Trait-based biomonitoring;Multiple stressors;Global change

期刊名称：ECOLOGICAL INDICATORS （ 影响因子：4.958； 五年影响因子：5.846 ）

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收录情况： SCI

摘要： Trait-based approaches may give insights into underlying mechanisms of relationships between biological communities and environmental stressors, and are increasingly used in ecological studies, but are only very recently considered for freshwater riverine microalgae. Here, we i) review the research trend in riverine microalgae during the past 26 years in order to conduct a quantitative and qualitative analysis for global trends in the research field, ii) summarize the use of algae traits in riverine biomonitoring and iii) propose future research perspectives. The bibliometric analysis showed that the annual number of publications on microalgae increased significantly from 1991 to 2016, although their proportions to total numbers of scientific articles remained steady. The studies have become increasingly concerned on issues arisen from global environmental changes such as "eutrophication", "pollution", "land use", "biomonitoring", "biodiversity", "functional group", etc. The use of algae traits in biomonitoring has become popular and includes e.g. functional diversity, cell size, guild, life form, eco-morphology, spore formation as well as algal quality. Here we collate all relevant algal traits, their different categories and propose their responses to resource supply and disturbance frequency in a conceptual model, which should be validated in future studies. In order to expand the knowledge and future use of microalgae in biomonitoring research efforts should also include: i) description of relationships between algal traits and ecosystem functions (e.g., nutrient uptake, metabolism, energy transfer across the food web) and underlying mechanisms; ii) selection of robust traits reflecting and disentangling the effects of multiple stressors; iii) water resource management in an interdisciplinary manner linking risk assessment and management scenarios by an integrated modelling system using microalgae.

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