<p>Appendix 1. Functional groups and representative species in the studied reservoirs Representatives in the studied reservoirs FG Pearl River Connected reservoirs Isolated reservoirs November January November January November January Urosolenia longiseta (O. Zacharias) Edlund & SEDK: 7.1 JIDA: 7.4 Stoermer WABA: 9.5 WABA: 28.6 Acanthoceras sp. A NSSA: 6.6 NSSA:6.2 Cyclotella comensis Grunow Cyclotella comta Kützing SEDK: 8.7 SEDK: 6.3 MUTC: 23.9 B LOJI: 17.1 YIKE: 10.4 Cyclotella meneghiniana Kützing NAPI: 6.3 ZEKE: 14.5 ZEKE: 6.8 ZUXD: 13.1 ZUXD: 60.4 C XIFL: 6.1 XIFL: 5.9 DAJS: 23.0 FEHS: 5.1</p><p>Stephanodiscus hantzschii Grunow 19.2 15.6 Actinocyclus normanii (W.Gregory ex Greville) D Hustedt Dinobryon divergens O. E. Imhof Dinobryon cylindricum O. E. Imhof E QIWU: 7.3 Mallomonas sp. Botryococcus braunii Kützing ZUXD: 26.7 NSSA: 16.7 Oocystis parva West & G. S. West MUTC: 12.2 MUTC: 5.4 Dictyosphaerium ehrenbergianum Nägeli Kirchneriella lunaris (Kirchner) Möbius F Ankistrodesmus fusiformis Corda Westella botryoides (West) De Wildeman Pseudosphaerocystis lacustris (Lemmermann) Nováková Pandorina morum (O. F. Müller) Bory NAPI: 7.1 NAPI: 22.1 DAZY: 9.6 G Eudorina elegans Ehrenberg Dolichospermum spp. H1 * * Scenedesmus quadricauda (Türpin) Brébisson SEDK: 6.3 SEDK: 24.6 JIDA: 5.1 Scenedesmus bijuga (Türpin) Lagerheim NAPI: 35.0 Scenedesmus obliquus (Türpin) Kützing YUKE: 8.1 ZUYI: 22.6 Scenedesmus arcuatus Lemmermann XIFL: 5.8 Scenedesmus spp. Tetrastrum heterocanthum (Nordstedt) Chodat Pediastrum duplex var. gracillimum West & G.S.West Pediastrum duplex Meyen Pediastrum simplex Meyen J Coelastrum reticulatum (P.A.Dangeard) Senn Coelastrum microporum Nägeli Golenkinia radiata Chodat Crucigeniella rectangularis (Nägeli) Komárek Tetraëdron minimum (A.Braun) Hansgirg Selenastrum minutum (Nägeli) Collins Actinastrum hantzschii Lagerheim Nephrocytium lunatum West Merismopedia glauca (Ehrenberg) Kützing ZEKE: 6.2 JIDA: 56.0 JIDA: 13.1 Chroococcus rufescens (Kützing) Nägeli WABA: 29.2 WABA: 28.3 L Peridinium bipes Stein O NSSA: 13.1 MEXI: 72.0 Ceratium hirundinella (O.F.Müller) Dujardin</p><p>Large dinoflagellates + Microcystis spp. LM YIKE: 13.5 MUTC: 66.5.0 Microcystis wesenbergii (Komárek) Komárek M SEDK: 11.7 MUTC: 6.2 Microcystis flosaquae (Wittrock) Kirchner LOJI:6.3 Microcystis smithii Komárek & Anagnostidis YUKE:6.2 Microcystis aeruginosa (Kützing) Kützing ZUYI: 59.4 XIFL: 64.2 Navicula spp. 5.6 NAPI: 10.8 NSSA: 19.0 Gyrosigma spp. YUKE: 5.5 DAZY: 5.1 Pinnularia brevicostata Cleve ZEKE: 6.5 QIWU: 6.1 Fragilaria acus (Kützing) Lange-Bertalot MP Frustulia vulgaris (Thwaites) De Toni Eunotia bilunaris (Ehrenberg) Schaarschmidt Gomphonema parvulum (Kützing) Kützing Cymbella spp. Staurodesmus dejectus (Brébisson) Teiling NAPI: 5.9 JIDA: 25.2 Staurastrum natator West WABA: 44.8 WABA: 33.9 Micrasterias foliacea J.W.Bailey ex Ralfs NSSA: 31.1 MEXI: 33.7 MUTC: 19.0 Xanthidium aculeatum Ehrenberg ex Ralfs MUTC: 15.5</p><p>Staurastrum crenulatum (Nägeli) Delponte NA Cosmarium moniliforme (Turpini) Ralfs Cosmarium depressum Bailey Cosmarium spp. Cosmarium connatum Brébisson ex Ralfs Spondylosium planum (Wolle) West & G.S.West N Tabellaria fenestrata (Lyngbye) Kützing * * Closteriopsis spp. P 41.4 39.0 SEDK: 50.1 SEDK: 37.2 JIDA: 7.5 Closterium spp. LOJI: 42.6 LOJI: 93.3 NSSA: 8.2 NSSA: 46.5 Asterionella sp. NAPI: 14.0 NAPI: 11.6 MEXI: 9.8 YUKE: 61.6 YUKE: 21.7 MUTC: 22.0 MUTC: 6.9 Fragilaria sp. ZUYI: 7.0 ZUYI: 32.9 DAZY: 32.6 DAZY: 33.0 Aulacoseira ambigua (Grunow) Simonsen ZEKE: 42.6 ZEKE: 46.3 Aulacoseira granulata (Ehrenberg) Simonsen ZUXD: 22.7 ZUXD: 21.4 Aulacoseira granulata var. angustissima (O. F. QIWU: 48.8 QIWU: 13.9 Müller) Simonsen DAJS: 5.9 Aulacoseira granulata var. angustissima f. spiralis FEHS: 17.5 (Hust.) Czarn. & Reinke Dactylococcopsis rhaphidioides Hansgirg 17.6 31.3 SEDK: 26.0 DAZY: 38.4 DAZY: 51.4 Limnothrix redekei (Van Goor) Meffert LOJI: 20.3 Planktolyngbya limnetica (Lemmermann) J. YIKE: 78.9 YIKE: 40.2 Komárková -Legnerová & G. Cronberg NAPI: 25.8 NAPI: 9.5 Pseudanabaena limnetica (Lemmermann) Komárek YUKE: 20.1 YUKE: 43.4 ZUYI: 24.0 ZUYI: 35.3 S 1 ZEKE: 27.6 ZUXD: 8.8 QIWU: 44.4 QIWU: 49.9 XIFL: 16.7 XIFL: 78.6 DAJS: 68.3 DAJS: 87.9 FEHS: 89.7 FEHS: 77.2 Cylindrospermopsis raciborskii (Woloszynska) LOJI: 6.3 DAJS: 5.6 Seenaya & Subba Raju SN</p><p>Mougeotia genuflexa (Roth) C.Agardh YIKE: 18.5 WABA: 6.2 Planctonema lauterbornii Schmidle T ZEKE: 40.9 Tribonema bombycina (C.Agardh) Derbès & Solier ZUXD: 19.7 Euglena acus (O.F.Müller) Ehrenberg YIKE: 8.1 Phacus longicauda (Ehrenberg) Dujardin W1 ZUXD: 9.1 Trachelomonas spp. W2 * * Chlorella vulgaris Beyerinck [Beijerinck] X Monoraphidium spp. 1 * * Chlamydomonas spp. X Chroomonas acuta Uterm 2 * * Glenodinium pulvisculus (Ehrenberg) F. Stein Y 7.8 YIKE: 7.6 JIDA: 32.0 JIDA: 44.7 Gymnodinium fuscum (Ehrenberg) Stein NAPI: 29.7 NSSA: 35.0 YUKE: 7.7 MEXI: 52.9 MEXI: 21.5 QIWU: 13.3 MUTC: 14.1 XIFL: 5.4 DAZY: 16.2</p>