Monitoring of cyanobacteria for water quality: doing the necessary right or wrong?

被引:13
|
作者
Moustaka-Gouni, M. [1 ]
Sommer, U. [2 ]
Katsiapi, M. [1 ]
Vardaka, E. [3 ]
机构
[1] Aristotle Univ Thessaloniki, Sch Biol, Dept Bot, GR-54124 Thessaloniki, Greece
[2] GEOMAR Helmholtz Ctr Ocean Res Kiel, Dusternbrooker Weg 20, D-24105 Kiel, Germany
[3] Int Hellen Univ, Dept Nutr Sci & Dietet, GR-57400 Thessaloniki, Greece
关键词
Cyanodictyon imperfectum; euphotic zone; Greece; Merismopedia tenuissima; Secchi depth; Water Framework Directive; WFD; TRANSPARENT EXOPOLYMER PARTICLES; PLANKTOTHRIX-RUBESCENS; MICROCYSTIS-AERUGINOSA; SECCHI DISK; LAKE; PHYTOPLANKTON; BLOOMS; ZOOPLANKTON; VARIABILITY; DIVERSITY;
D O I
10.1071/MF18381
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Cyanobacteria are an essential biological component of phytoplankton water quality assessment. However, there are some problems associated with the widely used everyday practices of sampling, estimation and use of cyanobacteria when calculating phytoplankton indices assessing water quality. Many indices were developed during the implementation of the Water Framework Directive, considered the most innovative European environmental legislation. Most indices include cyanobacteria as a composition or bloom metric. Problems with the indices concern the exclusion of most chroococcalean taxa from cyanobacterial biovolume estimations in lakes and reservoirs of the Mediterranean region, treatment of the mucilage of colonial chroococcalean taxa in biovolume estimations and overlooking of deep-water cyanobacterial blooms due to sampling depth. These problems may lead to a biased view of water quality. In this paper we argue in favour of including all cyanobacteria taxa and their mucilage in biovolume estimations and considering a sampling depth that covers deep-water maxima, such as those formed by Planktothrix rubescens or colonial chroococcalean taxa.
引用
收藏
页码:717 / 724
页数:8
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