Fig. 2From: Water quality and habitat drive phytoplankton taxonomic and functional group patterns in the Yangtze RiverSeasonal patterns of phytoplankton a abundance, b biomass, c species richness and d Shannon–Wiener diversity index in the middle and lower reaches of the Yangtze River during 2017–2018. Box plots with different lowercase letters indicate statistical differences between seasons, i.e., P < 0.05Back to article page