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热带海洋学报 >

2013 , Vol. 32 >Issue 3: 72 - 77

DOI: https://doi.org/10.11978/j.issn.1009-5470.2013.03.011

海洋环境保护

四种环境因子对澄黄滨珊瑚和斯氏角孔珊瑚胁迫作用研究

  • 刘丽 ,
  • 李泽鹏 ,
  • 申玉春 ,
  • 杨小东
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  • 广东海洋大学水产学院, 南海水产经济动物增养殖广东普通高校重点实验室, 广东 湛江 524025
刘丽(1974—), 女, 副教授, 主要从事海洋生物资源及其保护研究。

收稿日期: 2012-10-24

  修回日期: 2013-03-09

  网络出版日期: 2013-08-28

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Study of stress of four environmental factors on Porites lutea and Goniopora stutchburyi

  • LIU Li ,
  • LI Ze-peng ,
  • SHEN Yu-chun ,
  • YANG Xiao-dong
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  • Guangdong Ocean University, Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Zhanjiang 524025, China

Received date: 2012-10-24

  Revised date: 2013-03-09

  Online published: 2013-08-28

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摘要

在实验室条件下对澄黄滨珊瑚(Porites lutea)和斯氏角孔珊瑚(Goniopora stutchburyi)进行温度、pH、磷酸盐和铜离子4种环境因子的胁迫试验。结果表明, 温度、pH、磷酸盐和铜离子含量对2种珊瑚单位面积虫黄藻密度和叶绿素a含量有重要影响, 对照组和试验组间差异显著(p<0.05)。随着水环境温度升高、pH降低、磷酸盐和铜离子浓度增加, 澄黄滨珊瑚和斯氏角孔珊瑚分泌黏液, 触手逐渐回缩, 直至全部紧缩, 颜色逐渐变浅, 白化死亡。澄黄滨珊瑚在25℃和28℃时有较高的虫黄藻密度, 在28℃时有较高的叶绿素a含量; 斯氏角孔珊瑚在28℃时单位面积虫黄藻密度与叶绿素a含量都达到最高值。在pH 6.5时, 2种珊瑚单位面积虫黄藻密度和叶绿素a含量均达到最高值。澄黄滨珊瑚在磷酸盐浓度5.0μmol·L-1时, 单位面积虫黄藻密度和叶绿素a含量达到最高值; 斯氏角孔珊瑚在未添加磷酸盐时, 单位面积虫黄藻密度和叶绿素a含量为最高值。在铜离子浓度为4μg·L-1时, 2种珊瑚有较高的单位面积虫黄藻密度和叶绿素a含量。2种珊瑚比较, 澄黄滨珊瑚单位面积虫黄藻密度和叶绿素a含量明显低于斯氏角孔珊瑚。

关键词： 温度; pH; 磷酸盐; 铜离子; 虫黄藻; 叶绿素a; 珊瑚

本文引用格式

刘丽 , 李泽鹏 , 申玉春 , 杨小东 . 四种环境因子对澄黄滨珊瑚和斯氏角孔珊瑚胁迫作用研究[J]. 热带海洋学报, 2013 , 32(3) : 72 -77 . DOI: 10.11978/j.issn.1009-5470.2013.03.011

Abstract

Under laboratory condition, a stress experiment of four environmental factors (temperature, pH, phosphate and copper) on scleractinian (Porites luteaand Goniopora stutchburyi) was carried. The results suggested the four environmental factors have significant impacts on the areal zooxanthellae density and zooxanthellae chlorophyll-a content of two coral species and show a significant differences between control and treatment (p<0.05). Along with the increase of temperature, the decrease of pH, and the increases of phosphate concentration and copper concentration in the seawater, two coral species were stimulated to have slime secretion at first, and then their tentacle lost activity density and coral surfaces lost colors until

Key words： temperature; pH; phosphate; copper; zooxanthellae; chlorophyll-a; coral

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