Diurnal variation of phytoplankton community in a high frequency area of HABs： Daya Bay, China

• Published in: Chinese journal of oceanology and limnology 2011-07, Vol.29 (4), p.800-806
• Main Author: 刘华雪 宋星宇 黄良民 钟瑜 沈萍萍 秦耿
• Format: Article
• Language: English
• Subjects: Algae; Ammonia; Aquaculture; Bays; Blooms; Cage culture; Chemical analysis; Community structure; Cost analysis; Dinoflagellates; Diurnal variations; Dominant species; Earth and Environmental Science; Earth Sciences; High frequency; Marine; N:P Ratios; Nutrient Loads and Ecology; Nutrients; Oceanography; Phytoplankton; Plankton; Polyculture (aquaculture); Pseudo-nitzschia; Seawater; Silicates; Skeletonema costatum; Statistical analysis; Statistical methods; Stratification; Synechococcus; Vertical distribution; Vertical migration; Vertical migrations; Water analysis; Water stratification; 中国; 大亚湾; 日变化; 植物群落结构; 浮游植物群落; 网箱养殖区; 赤潮; 高频区
• ISSN: 0254-4059; 2096-5508; 1993-5005; 2523-3521
• DOI: 10.1007/s00343-011-0509-5

Phytoplankton community was investigated in the cage culture area of Daya Bay during a diurnal cycle. Two rainfalls occurred during the course of the experiment and decreased the surface seawater salinity in the aquaculture area. A total of 38 species were identified, of which the dominant species included Pseudo-nitzschia spp. and Skeletonema costatum. Water stratification obstructed the vertical migration of dinoflagellates. Statistical analysis indicated that Synechococcus showed negative relationship with silicate and ammonia, which indicated that Synechococcus adapted to grow at oligotrophic environment. Phytoplankton community structure implied the risk of Pseudo-nitzschia spp. blooms in the aquaculture area of Daya Bay.