| 引用本文： |
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李小敏,张敬怀,刘国强.涠洲岛附近海域一次红海束毛藻赤潮生消过程分析[J].广西科学,2009,16(2):188-192. [点击复制]
- LI Xiao-min,ZHANG Jing-huai,LIU Guo-qiang.Studies of a Trichodesmium erythraeum Red Tide in Sea Area Near Weizhou Island Guangxi[J].Guangxi Sciences,2009,16(2):188-192. [点击复制]
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| 摘要: |
| 红海束毛藻(Trichodesmium erythraeum )属蓝藻门、颤藻科、束毛藻属。2004年6月28日至7月1日涠洲岛附近海域发生了一次小规模的红海束毛藻赤潮,这已是该海域近3年内的第3次红海束毛藻赤潮。赤潮生物的最高密度为7.0×108cell/L。在赤潮发生前涠洲岛附近海域海水中的营养盐含量变化较大,海水硅酸盐和磷酸盐含量逐月降低,赤潮发生前1天硅酸盐和磷酸盐降至最低。赤潮发生前海水温度持续升高。赤潮发生区与未发生赤潮海区相比,赤潮发生区在赤潮发生前硅酸盐含量更低,基本检不出;赤潮发生区磷酸盐含量降低,但是较对照区含量高。在赤潮形成期间,赤潮发生区硅藻数量明显的降低。本次赤潮发生与海水的富营养化无关,是一次非富营养化引发的赤潮,赤潮的发生导致海区的COD升高。 |
| 关键词: 赤潮 红海束毛藻 环境因子 |
| DOI： |
| 投稿时间：2008-11-17 |
| 基金项目:国家海洋局近岸海域生态环境重点实验室项目(200509);南海分局局长基金项目(0534)资助 |
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| Studies of a Trichodesmium erythraeum Red Tide in Sea Area Near Weizhou Island Guangxi |
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LI Xiao-min1,2, ZHANG Jing-huai2, LIU Guo-qiang3
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| (1.College of Environmental Science and Engineering, Ocean University of China, Qingdao, Shandong, 266003, China;2.South China Sea Environmental Monitoring Center, Guangzhou, Guangdong, 510300, China;3.Beihai Sea Environmental Monitoring Central Station, Beihai, Guangxi, 536000, China) |
| Abstract: |
| A Trichodesmium erythraeum red tide had occurred in sea area near Weizhou island Guangxi from June 28 to July 1,2004.T.erythraeum had acaused 3 red tide in the sea area in the past 3 year.The highest density of T.erythraeum was 7.0×108 cell/L in 2004.Nutrients changed obviously before red tide occurred.Contents of silicate and phosphate reduced month by month before red tide occurred.Contents of silicate and phosphate were the lowest in June 26,2004.Temperature of sea water increased continuously before red tide occurred.Contents of silicate is no detected in which red tide occurred.Contents of silicate is lower than sea area in which had no red tide.Contents of phosphate were higher than sea area in which had no red tide.The relationships between the occurrences of red tides (HABs) and eutrophication were unconcerned.The red tide had made COD increase. |
| Key words: red tide T.erythraeum environmental factors |
