| 莱州湾及潍河口夏季浮游植物生物量和初级生产力的分布 |
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| 引用本文： | 孙军,刘东艳,柴心玉,钱树本.莱州湾及潍河口夏季浮游植物生物量和初级生产力的分布[J].海洋学报,2002,24(5):81-90. |
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| 作者姓名： | 孙军 刘东艳 柴心玉 钱树本 |
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| 作者单位： | 1.青岛海洋大学海洋生命学院, 山东, 青岛, 266003 |
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| 基金项目： | 国家自然科学基金重大资助项目 (49790 10 0 1- 0 1),青岛海洋大学校基金资助项目 (812 5 2 6 ) |
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| 摘 要： | 于1998年6月黄河断流期在潍河口及其邻近海域进行了水文、化学和生物等专业综合外业调查.对此海区浮游植物叶绿素a浓度、脱镁色素浓度和初级生产力的变化进行了分析.研究结果表明,叶绿素a浓度介于0.089～5.444mg/m3之间,平均值为1.331mg/m3;脱镁色素浓度介于0.176～3.402mg/m3之间,平均值为0.905mg/m3.叶绿素a和脱镁色素浓度高密度区分布在小清河口附近、潍河口内及潍河口以外临近海域.初级生产力介于13.58～301.54mg/(d·m2)之间,平均值为62.49mg/(d·m2).水柱初级生产力高值区分布在小清河口和37.30°N,119.47°E附近.对水文、化学和浮游动物等环境因子与浮游植物生物量和初级生产力的相关性分析表明,整个调查区,浮游植物生物量和初级生产力与海区潮汐、光照、磷酸盐、硅酸盐和微型浮游动物等环境因子密切相关,同氨盐、硝酸盐和亚硝酸盐的作用不明显,其中潍河口内浮游植物的生物量分布同潮汐的关系最为密切.夏季此海域浮游植物生长主要受磷酸盐和硅酸盐的限制.调查海域浮游植物生物量及生产力水平较历史同期有所增加.
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| 关 键 词： | 浮游植物 叶绿素a 脱镁色素 初级生产力 渤海 莱州湾 |
| 文章编号： | 0253-4193(2002)05-0081-10 |
| 收稿时间： | 2001/5/21 0:00:00 |
| 修稿时间： | 2001年5月21日 |
The distribution of phytoplankton biomass and primary productivity in the Laizhou Bay and estuary of the Weihe River in summer |
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| SUN Jun,LIU Dong-yan,CHAI Xin-yu and QIAN Shu-ben.The distribution of phytoplankton biomass and primary productivity in the Laizhou Bay and estuary of the Weihe River in summer[J].Acta Oceanologica Sinica (in Chinese),2002,24(5):81-90. |
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| Authors: | SUN Jun LIU Dong-yan CHAI Xin-yu and QIAN Shu-ben |
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| Institution: | 1.Marine Life Science College, Ocean University of Qingdao, Qingdao 266003, China2.Dongfanghong Ⅱ R/V, Ocean University of Qingdao, Qingdao 266003, China |
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| Abstract: | A hydrodynamic, chemical and biological joint ecosystem investigation in the Laizhou Bay and the Weihe River Estuary was carried out during the drying up of the Honghe River in June 1998.The biological oceanographic parameters, including chlorophylla concentration, phaeopigments concentration and primary productivity, are measured and analyzed.The mean value of chlorophyll a concentration is 1.331 mg/m3, chlorophyll a concentration ranges from 0.089 to 5.444 mg/m3.The mean value of phaeopigments concentration is 0.905 mg/m3, phaeopigments concentration ranges from 0.176 to 3.402 mg/m3.The patterns of chlorophylla and phaeopigments concentration horizontal distribution are similar, high concentration area is located at the Xiaoqing River Estuary, the Weihe River Estuary and adjacent area.The mean value of primary productivity are 62.49 mg/(d·m2), primary productivity ranges from 13.58 to 301.54 mg/(d·m2).High primary productivity is found at the Xiaoqing River Estuary and nearby 37.30°N, 119.47°E.The Pearson's correlation coefficient analysis results of phytoplankton biomass, zooplankton and chemical oceanographic parameters, show a closed correlation between chlorophylla, phaeopigments, microzooplankton, phosphate and silicate concentration in station grid survey, meanwhile a stronger correlation between chlorophylla concentration and tide fluctuation is found in the Weihe River.The phytoplankton growth is limited not by nitrogen nutrient but phosphate and silicate.The phytoplankton biomass and primary productivity are increased compared with history data. |
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| Keywords: | phytoplankton chlorophyll a phaeopigment primary productivity Bohai Sea Laizhou Bay |
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