Study on Nano- and Microphytoplankton Diversity and Community Structure in Sanmen Bay of the East China Sea

Abstract

From January to December 2018, nano- and microphytoplankton collection and environmental factors of 34 stations in Sanmen Bay. In total 109 genera and 261 species of nanoand microphytoplankton were identified in the seawater area of Sanmen Bay. Among them, 73 genera and 207 species were Bacillariophyta accounting for 79.3% in total species number; 18 genera and 35 species were Pyrrophyta and 13.4%; the remained 18 genera and 17 species were accounting for 7.3%. Among the 261 species of nano- and micro- phytoplankton, the dominant species of the community structure were Skeleconema costatum, Skeletonema marinoi, Coscinodiscus jonesianus, Coscinodiscus asteromphalus, Coscinodiscus radiatus, Thalassiosira subtilis, Leptocylindrus danicus, Ditulum brightwellii, Thalassionema frauenfeldii, Pseudo-nitzschia pungens, Pseudo-nitzschia multiseries, Pseudo-nitzschia seriata, Pseudo-nitzschia delicatissima, Tripos fusus, Tripos muelleri, Chaetoceros pseudocurvisetus, Chaetoceros lorenzianus, Chaetoceros curvisetus, Chaetoceros compressue etc in the Sanmen Bay ,and so on.