Fig. 6

Projection of the studied variables and observations onto the factorial plane PC 1 and 2 for freshwater (and terrestrial) microalgae. Indicators (variables): light intensity (µmol photons m^− 2 s^− 1); cultivation time (days); lipid content (% DW); lipid productivity (mg L^− 1 day^− 1); total nitrogen (g L^− 1); total phosphorus (g L^− 1); N:P (unit). Group A: Microcystis aeruginosa CACIAM08; Synechocystis sp. CACIAM05; Trichormus sp. CENA77; Ankistrodesmus fusiformis; Ankistrodesmus falcatus; Chlamydocapsa bacillus; Chlamydomonadales sp. TGA3; Chlamydomonas sp.; Mychonastes homosphaera; Chlorella sorokiniana; Chlorella sp. TGA2; Chlorella sp. TGA4; Chlorella vulgaris; Chlorella vulgaris CCAP 211/11B; Chlorella vulgaris CCAP 211; Chlorella vulgaris UTEX 395; Chlorella vulgaris CCAP 211/11B; Chromochloris zofingiensis; Coelastrum microporum; Desmodesmus brasiliensis; Ettlia oleoabundans; Ettlia oleoabundans REF2; Hindakia tetrachotoma PGA1; Kirchneriella lunaris; Raphidocelis subcapitata; Scenedesmus sp.; Tetradesmus obliquus. Group B: Vischeria magna; Vischeria vischeri; Vischeria cf. polyphem. Group C: Microcystis aeruginosa; Microcystis aeruginosa NPCD-1; Oscillatoria sp. PBGA3; Synechococcus elongatus PCC7942; Synechocystis sp. MH01; Tolypothrix sp. PBGA1, Tolypothrix sp. PBGA2; Monodopsis subterranea UTEX 151; Nannochloropsis limnetica CCMP505; Chlorella sp.; Chlorella sp. MRA-1; Chlorella sp. PGA2; Chlorella vulgaris; Chlorella vulgaris F&M-M49; Chlorella vulgaris AG10032; Chlorococcum sp.; Desmodesmus communis; Hindakia tetrachotoma ME03; Micractinium sp. ME05; Scenedesmus sp. DM; Scenedesmus sp. ME02; Tetradesmus dissociates; Tetradesmus obliquus