Characteristics of phytoplankton communities in Nandagang wetland of Hebei province in winter
XIA Yun1,2, LI Qian1,2, XU Ying-jun1,2,3, TAO Jun1,2,3, LONG Shuang1,2, GU Wei1,2,3
1. Key Laboratory of Environmental Change and Natural Disaster MOE, Beijing Normal University, Beijing 100875, China;
2. State Key Laboratory of Earth Surface Processes and Resources Ecology, Beijing Normal University, Beijing 100875, China;
3. Coastal Zone and Sea Ice Research Center, Beijing Normal University, Beijing 100875, China
Abstract：Two cruises were carried out in Nandagang wetland in 5th January and 13th March of 2016. Phytoplankton samples were analyzed and 108 taxa belonging to 74 genus of 7 classes were identified. In January, the cell abundance of phytoplankton ranged (0.26~6.70)×107 /L,the average abundance was 2.25×107 /L. The dominant species were Chlamydomonas sp.、Cyclotella sp.、Merismopedia minima、Kirchneriella sp. and Carteria sp. In March, the cell abundance of phytoplankton ranged (0.35~16.35)×107/L, the average abundance was 4.28×107/L. The dominant species were Chlorella sp.、Merismopedia minima)、Carteria sp. and Ankistrodesmus acicularis. The Shannon-Wiener index (H') is generally lower than that of the tourist center and the cruise terminal near the center of the cruise ship, which may be related to the suspension of the icing period. From the biodiversity index, the water quality of wetland is quite clean during freezing period, the phytoplankton resources are abundant and structure is relatively stable, and the biodiversity after melting is better than that in the freezing period. Due to the heterogeneity of environmental factors of space, distribution and density of species change quite a lot among various stations at the same period.
XIA Yun,LI Qian,XU Ying-jun et al. Characteristics of phytoplankton communities in Nandagang wetland of Hebei province in winter[J]. Marine Environmental Science, 2017, 36(5): 712-718.
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