We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Community structure characteristics of phytoplankton and related affecting factors in Heng-shan Reservoir, Zhejiang, China.
- Authors
YANG Liang-jie; YU Peng-fei; ZHU Jun-quan; XU Zhen; L-Guang-han; JIN Chun-hua
- Abstract
In order to reveal the community structure characteristics of phytoplankton and the relationships with environmental factors in Hengshan Reservoir, the phytoplankton species composition, abundance, biomass and 12 environmental factors at 4 sampling sites were analyzed from March 2011 to February 2012. A total of 246 phytoplankton species were identified, which belong to 78 genera and 7 phyla. The dominant species were Melosira varians, M. granulate, Cyclotella meneghiniana, Asterianella formosa, Synedra acus, Achnanthes exigua, Ankistrodesmus falcatus, Oscillatoria lacustris, Cryptomonas erosa, Chroomonas acuta, Phormidium tenue and Microcystis aeruginosa, etc. Seasonal variations of species were obvious. The annual abundance and biomass of the phytoplankton were 0. 51×105 -14. 22×105 ind ∙ L-1 and 0. 07-1. 27 mg ∙ L-1, respectively. The values of the Margelef index, Pielou index and Shannon index of the phytoplankton community were 1. 10-3. 33, 0. 26-0. 81 and 0. 51-2. 38, respectively. The phytoplankton community structure was of Bacillariophyta-Cryptophyta type in spring and winter, of Chlorophyta-Cyanophyta type in summer, and of Bacillariophyta type in autumn. Canonical correlation analysis (CCA) showed that temperature, transparency, chemical oxygen demand and pH had the closest relationships with the phytoplankton community structure in the reservoir. Water quality evaluation showed that Hengshan Reservoir was in α secondary pollution with a meso-trophic level.
- Subjects
CHINA; PHYTOPLANKTON; RESERVOIRS; ANKISTRODESMUS falcatus; MICROCYSTIS aeruginosa; DIATOMS; CRYPTOMONADS
- Publication
Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao, 2014, Vol 25, Issue 2, p569
- ISSN
1001-9332
- Publication type
Article