Bio phile element composition and species composition of marine phytoplaskton

海洋植生物亲生物元素组成和物种组成

基本信息

批准号：
09440191
负责人：
MASUZAWA Toshiyuki
金额：
$ 7.23万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

Products of biological production by phytoplankton (organic matter, calcium carbonate and opal) in the euphotic layer of the oceans are starting materials from material cycling of both major (N, P, Si, Ca, etc.) and minor biophile elements in the oceans. The data on elemental compositions from major to trace elements of these marine biological products have been quite limited. The purposes of this study are : to collect marine phytoplankton samples from the subarctic north Pacific and Bering Sea area with a specially designed non-metal NORPAC net, to develop a simple stepwize leaching method for major component analysis and for fractionation of major and trace elements into each major component phases, to obtain multi-element compositions of marine phytoplanlkton samples and to compare the elemental composition and species composition of phytoplankton samples.We sampled phytoplankton samples mainly composed of diatom with a size range of 25-335 μm from the subarctic North Pacific and Bering Sea area, developed a simple stepwize leaching method to analyze sea salt, calcium carbonate, organic matter, opal and residual aluminosilicate, determined the fractionation of major and trace elements in to these major components. Species compositions of these phytoplankton samples were identified microscopically. As the results we showed the 12 major and trace element compositions in biogenic phase of these samples and estimated the association of these elements with biogenic phases. The analytical method developed here will become an effective method to clarify the behaviors of these elements associating with biological production in marine environments.

浮游植物（有机物，碳酸钙和蛋白石）在海洋兴奋的层中生产的生物生产产物是从大型（N，P，Si，Ca等）和海洋中的次要生物元素元素的材料启动材料。从主要到追踪这些海洋生物产品的元素成分的数据非常有限。 The purposes of this study are : to collect marine phytoplankton samples from the subarctic north Pacific and Bering Sea area with a specially designed non-metal NORPAC net, to develop a simple stepwize leading method for major component analysis and for fractionation of major and trace elements into each major component phase, to obtain multi-element compositions of marine phytoplanlkton samples and to compare the elemental composition and species composition of浮游植物样品。我们采样了主要由硅藻组成的浮游植物样品，其大小范围为25-335μm，来自北极亚北太平洋地区和白令海地区，开发了一种简单的史蒂威式步行方法，以分析海盐，碳酸盐，有机物和剩余的铝素化合物，确定这些材料和材料的核心成分，并确定了这些材料。这些浮游植物样品的物种组成是微观鉴定的。作为结果，我们显示了这些样品的生物阶段中的12个主要元素组成，并估计了这些元素与生物阶段的关联。此处开发的分析方法将成为一种有效的方法，以阐明在海洋环境中生物生产相关的这些元素的行为。