Supplementary material Table 2. Description of metrics used in the Member State lake phytobenthos and macrophyte assessment methods Algal groups Member Phytobenthos included in the Macrophyte assessment Macroalgae included in the macrophyte State assessment system phytobenthos system assessment system assessment system AIM for Lakes (Austrian Index Austria Not developed Not included Macrophytes for lakes) and Enteromorpha, Hydrodictyon Vaucheria included in the indicator list of two sensitivity Proportion of indices; Presence of cyanobacteria film and Belgium Diatoms Flemish macrophyte assessment included in the growth form metrics; Diatoms system Abundance of filamentous algae included in (PISIAD) the submerged vegetation development metrics Bulgarian macrophyte Under development Not included Bulgaria assessment method Croatia TIDHR Diatoms Biocenological method Not included Czech Not developed Under development Republic Cyprus Not developed Not developed Danish Lake Macrophytes Under development Not included Denmark Index Estonian surface water Abundance of large green filamentous algae Estonia Not developed ecological quality assessment – included as one of the metrics lake macrophytes Finnish macrophyte Finland IPS index Diatoms Not included classification system (Finnmac) Different taxa of Bacillariophyta, Chlorophyta, Cyanophyta, Rhodophyta and IBML (French Macrophyte France development Bacteria included in the indicator list: ranging Index for Lakes) from sensitive to tolerant Hildenbrandia and Stigeoclonium tenue Sphaerotilus sp.
Supplementary material Table 2. Description of metrics used in the Member State lake phytobenthos and macrophyte assessment methods Member State Phytobenthos assessment system Algal groups included in the phytobenthos assessment system Macrophyte assessment system Macroalgae included in the macrophyte assessment system Austria Not developed AIM for Lakes (Austrian Index Macrophytes for lakes) Not included Belgium Proportion of and Diatoms (PISIAD) Diatoms Flemish macrophyte assessment system Enteromorpha, Hydrodictyon and Vaucheria included in the indicator list of two sensitivity indices; Presence of cyanobacteria film included in the growth form metrics; Abundance of filamentous algae included in the submerged vegetation development metrics Bulgaria Under development Bulgarian macrophyte assessment method Not included Croatia TIDHR Diatoms Biocenological method Not included Czech Republic Not developed Under development Cyprus Not developed Not developed Denmark Under development Danish Lake Macrophytes Index Not included Estonia Not developed Estonian surface water ecological quality assessment – lake macrophytes Abundance of large green filamentous algae included as one of the metrics Finland IPS index Diatoms Finnish macrophyte classification system (Finnmac) Not included France development IBML (French Macrophyte Index for Lakes) Different taxa of Bacillariophyta, Chlorophyta, Cyanophyta, Rhodophyta and Bacteria included in the indicator list: ranging from sensitive Hildenbrandia to tolerant Stigeoclonium tenue and Sphaerotilus sp.
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