| 春季海南岛近岸海域尿素与浮游生物的脲酶活性 |
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| 引用本文： | 黄凯旋,张云,欧林坚,吕颂辉,吕淑果,齐雨藻.春季海南岛近岸海域尿素与浮游生物的脲酶活性[J].生态学报,2013,33(15):4575-4582. |
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| 作者姓名： | 黄凯旋 张云 欧林坚 吕颂辉 吕淑果 齐雨藻 |
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| 作者单位： | 1. 暨南大学赤潮与海洋生物学研究中心,水体富营养化与赤潮防治广东普通高校重点实验室(暨南大学),广州510632
2. 海南省环境科学研究院,海口,570206 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划项目，中央高校基本科研业务费专项资金资助项目 |
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| 摘 要： | 2011年春季(4-5月),对海南岛的海口湾、澄迈湾、文昌八门湾、陵水新村湾和大东海5个海湾的尿素浓度及浮游生物的脲酶活性开展调查研究,结合其它理化环境因子,分析海南岛近岸海域尿素的可利用性及其对该海区浮游植物生长可能产生的影响.结果表明,海南岛近岸水体中尿素平均浓度为2.07-3.30 μmol/L,占总溶解态氮TDN含量的14％-38％,尿素占TDN比例由北向东、南方向递增.浮游生物脲酶活性为0.30-0.84 μmolN· L-1· h-1,海口湾最高,从北部向东、南部逐渐减少.各海湾较高水平的尿素和脲酶活性主要分布在排污口、养殖区或旅游区的近岸海域.硅藻为优势种,甲藻种类少且密度低,部分甲藻密度达到104-105个/L的水体,尿素和脲酶活性也处于较高水平.海区浮游植物细胞密度与脲酶活性或尿素占TDN比例等因子存在相关性,表明尿素是海南海域浮游植物生长不可忽略的重要氮源.尿素在一定程度上促进春季海南岛近岸海域甲藻等浮游植物的生长,可能对浮游植物群落结构的改变产生重要影响.
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| 关 键 词： | 环境海洋学 尿素 脲酶活性 浮游植物 群落结构 海南岛 海湾 |
| 收稿时间： | 2012/5/15 0:00:00 |
| 修稿时间： | 2012/10/26 0:00:00 |
The distribution of urea concentrations and urease activities in the coastal waters of Hainan Island during the spring |
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| HUANG Kaixuan,ZHANG Yun,OU Linjian,L&#; Songhui,L&#; Shuguo and QI Yuzao.The distribution of urea concentrations and urease activities in the coastal waters of Hainan Island during the spring[J].Acta Ecologica Sinica,2013,33(15):4575-4582. |
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| Authors: | HUANG Kaixuan ZHANG Yun OU Linjian L&#; Songhui L&#; Shuguo and QI Yuzao |
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| Institution: | Research Center for Harmful Algae and Marine Biology & Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China;Research Center for Harmful Algae and Marine Biology & Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China;Research Center for Harmful Algae and Marine Biology & Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China;Research Center for Harmful Algae and Marine Biology & Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China;Hainan Research Academy of Environmental Sciences, Haikou 570206, China;Research Center for Harmful Algae and Marine Biology & Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China |
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| Abstract: | |
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| Keywords: | environmental oceanography urea urease activity phytoplankton community structure Hainan Island Bay |
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