南海中南部溶解态铝初探: 促进甲藻生长？

doi:10.11978/j.issn.1009-5470.2014.02.011

热带海洋学报 ›› 2014, Vol. 33 ›› Issue (2): 78-86.doi: 10.11978/j.issn.1009-5470.2014.02.011cstr: 32234.14.j.issn.1009-5470.2014.02.011

南海中南部溶解态铝初探: 促进甲藻生长？

王琼^{1, 2}, 谭烨辉¹, 周林滨¹, 柯志新¹, 黄良民¹

1. 中国科学院南海海洋研究所海洋生物资源可持续利用重点实验室, 广东广州 510301; 2. 中国科学院大学, 北京100049

收稿日期:2013-04-24 修回日期:2013-05-22 出版日期:2014-04-02 发布日期:2014-04-02
通讯作者: 谭烨辉(1969~), 女, 研究员, 主要从事浮游生物生产、输出及调控机制和海水养殖环境生物修复研究。E-mail: tanyh@scsio.ac.cn
作者简介:王琼(1988~)，女，江西省丰城市人，硕士研究生，主要研究方向为海洋生态。E-mail：wqngu@163.com

Research on dissolved aluminum in the central and southern South China Sea: Can aluminum stimulate Pyrrophyta’s growth？

WANG Qiong^{1, 2}, TAN Ye-hui¹, ZHOU Lin-bin¹, KE Zhi-xin¹, HUANG Liang-min¹

1. Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2013-04-24 Revised:2013-05-22 Online:2014-04-02 Published:2014-04-02
Contact: 国家自然科学基金重点项目(41276162、41130855); 科技基础性工作专项项目(2008FY110100)

摘要/Abstract

摘要： 2011年11月28日至2012年1月12日期间, 通过对南海18°N至5°N海域25个站点78个溶解态铝样品的采集分析及所获得的浮游植物数据, 首次研究报道了南海中南部海域溶解态铝的空间分布特征, 探讨其与浮游植物群落结构之间的关系。结果表明, 表层海水中溶解态铝平均含量138.3±39.1nmol·L^-1, 呈现陆架高、海盆和岛礁区低的水平分布特点; 表层浮游植物共57属132种, 分别属于硅藻门38属72种, 甲藻门18属58种, 蓝藻门1属2种, 细胞总丰度在(0.75~21.09)×10³cell·dm^-3之间, 表层溶解态铝的分布与甲藻总丰度(n=22, r=0.55, p<0.01)具有显著的正相关性。就垂直分布而言, 溶解态铝在0~100m水深内变化剧烈, 在100~300m深度范围内, 溶解态铝变化不明显, 200m处稍有增加; 溶解态铝的垂直分布与营养盐相关性不显著, 与叶绿素a浓度(n=16, r=0.58, p<0.05)、浮游植物总丰度(n=16, r=0.59, p<0.05)和甲藻总丰度(n=15, r=0.69, p<0.01)显著正相关, 推测冬季溶解态铝对南海甲藻生长具有一定促进作用。

关键词: 溶解态铝, 分布, 甲藻, 南海中南部

Abstract: Based on the cruise in the central and southern South China Sea from November 28^th, 2011 to January 12^th, 2012, the characteristics of dissolved aluminum distribution and its correlation with phytoplankton community structure were presented in this paper. The data included 78 dissolved Al samples at 25 stations between 5 and 18°N. The average value of dissolved Al in the surface water was 138.3±39.1 nmol·L^-1, showing a horizontal distribution with high concentration in the continental shelf water and low concentration in the open sea and around islands and reefs. In the surface water samples, we identified 132 phytoplankton species belonging to 57 genera, including Bacillariophyta, Pyrrophyta and Cyanophyta. Phytoplankton biomass fluctuated from 0.75×10³to 21.09×10³ cell·dm^-3and showed a significant positive correlation with dissolved Al (n=22, r=0.55, p<0.01). Dissolved Al showed obvious variation from the surface to 100 m in the vertical profiles, but little change from 100 to 300 m. No strong analogy between dissolved Al and nutrients was observed at two vertical profiles. However, dissolved Al exhibited a significant positive correlation with chlorophyll a (n=16, r=0.58, p<0.05), the total abundance of phytoplankton (n=16, r=0.59, p<0.05), and the Pyrrophyta abundance (n=15, r=0.69, p<0.01), which indicates that the dissolved Al may have stimulated Pyrrophyta’s growth in the central and southern South China Sea in winter.

Key words: dissolved aluminum, distribution, Pyrrophyta, South China Sea

中图分类号:

P735

王琼, 谭烨辉, 周林滨, 柯志新, 黄良民. 南海中南部溶解态铝初探: 促进甲藻生长？[J]. 热带海洋学报, 2014, 33(2): 78-86.

WANG Qiong, TAN Ye-hui, ZHOU Lin-bin, KE Zhi-xin, HUANG Liang-min. Research on dissolved aluminum in the central and southern South China Sea: Can aluminum stimulate Pyrrophyta’s growth？[J]. Journal of Tropical Oceanography, 2014, 33(2): 78-86.

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南海中南部溶解态铝初探: 促进甲藻生长？

Research on dissolved aluminum in the central and southern South China Sea: Can aluminum stimulate Pyrrophyta’s growth？

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