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首页> 外文学位 >The use of phytoplankton pigments for studying phytoplankton community structure and red tide occurrence in Tolo Harbour, Hong Kong.
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The use of phytoplankton pigments for studying phytoplankton community structure and red tide occurrence in Tolo Harbour, Hong Kong.

机译：利用浮游植物色素研究香港吐露港的浮游植物群落结构和赤潮发生。

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摘要

This research is to investigate the use of phytoplankton pigments for studying phytoplankton community structure and red tide occurrence in Tolo Harbour, Hong Kong. The study is divided into four parts. The first part studied the spatial and temporal structures of the marine phytoplankton during a red tide occurrence in Tolo Harbour. A red tide caused by dinoflagellate Scrippsiella trochoidea was detected in the inner part of Tolo Harbour at the end of November 2000. For temporal study, water samples were collected from a fixed station at the centre of the red tide patch for microscopic analysis of phytoplankton community composition and High Performance Liquid Chromatography (HPLC) analysis of phytoplankton pigments. At the peak of the red tide on 24 November 2000, phytoplankton was dominated by S. trochoidea at a density of ∼3.5 × 104 cells ml−1 .; In the second part, phytoplankton characteristics in the eutrophic inner Tolo Harbour was studied at monthly interval from February 2001 to April 2002. The result showed that chl a concentrations were generally high throughout the study, ranging between 2.20 and 110 ng ml−1 , especially during red tides and algal blooms (>50 ng ml−1 ). FUCO and PERI have been confirmed to be good quantitative markers of diatoms and dinoflagellates abundances, respectively.; In the third part, water samples were analysed in four different parts of Tolo Harbour (inner Tolo Harbour to outer Tolo Harbour) between November 2000 and March 2002 to study the applicability of using phytoplankton pigments for spatio-temporal phytoplankton monitoring. The phytoplankton ecology survey was also carried out to study the latest phytoplankton community structure and dynamic in the harbour. The results showed that there had been a gradual increase of phytoplankton density from outer parts of Tolo Harbour to the inner. The average phytoplankton density of diatoms and dinoflagellates in the inner Tolo Harbour was about six times higher than those in the outer one.; Finally, the feeding habits of the marine cladoceran Penilia avirostris in inner Tolo Harbour were studied during a red tide bloom in April 2001. Microscopic examination of phytoplankton assemblages in areas where discoloration of seawater was obvious indicated that the red tide was caused by blooms of the dinoflagellates Scrippsiella trochoidea (∼8.9 × 103 cells ml−1) and Prorocentrum dentatum (∼4.5 × 103 cells ml−1). (Abstract shortened by UMI.)
机译：这项研究旨在探讨使用浮游植物色素研究香港吐露港的浮游植物群落结构和赤潮的发生。本研究分为四个部分。第一部分研究了吐露港发生赤潮期间海洋浮游植物的时空结构。在2000年11月底，在吐露港内部检测到由鞭毛鞭毛藻（Trincide trochoidea）引起的赤潮。为进行时间研究，从赤潮中心的固定站收集了水样用于对浮游植物群落组成进行微观分析和高效液相色谱（HPLC）分析浮游植物色素的贴片。在2000年11月24日的赤潮高峰期，浮游植物以 S为主。 trochoidea ，密度为〜3.5×10 4 个细胞ml -1 。在第二部分中，以2001年2月至2002年4月的月度间隔研究了富营养化的内陆吐露港的浮游植物特征。结果表明，整个研究过程中chl a 的浓度通常较高，范围为2.20至110 ng ml -1 ，尤其是在赤潮和藻华期间（> 50 ng ml -1 ）。 FUCO和PERI分别是硅藻和鞭毛藻丰度的良好定量标记。在第三部分中，分析了2000年11月至2002年3月在吐露港（内吐露港至吐露港外）四个不同部分的水样，以研究使用浮游植物色素进行时空浮游植物监测的适用性。还进行了浮游植物生态调查，以研究海港最新的浮游植物群落结构和动态。结果表明，从吐露港的外部到内部的浮游植物密度逐渐增加。吐露港内部的硅藻和鞭毛藻的平均浮游植物密度比外面的高六倍。最后，在2001年4月赤潮期间研究了吐露港内海螯虾的摄食习性。在海水变色明显的区域，对浮游植物进行了显微镜检查，结果表明红色潮是由鞭毛藻（italic> trophideella trochoidea （〜8.9×10 3 cells ml -1 ）和齿状原齿的花开引起的（〜4.5×10 3 个细胞ml -1 ）。 （摘要由UMI缩短。）

著录项

  • 作者

    Wong, Chun Kwan.;

  • 作者单位

    Chinese University of Hong Kong (People's Republic of China).;

  • 授予单位 Chinese University of Hong Kong (People's Republic of China).;
  • 学科 Environmental Sciences.; Biology Ecology.; Biology Oceanography.
  • 学位 Ph.D.
  • 年度 2003
  • 页码 231 p.
  • 总页数 231
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境科学基础理论;生态学（生物生态学）;海洋生物;
  • 关键词

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