引用本文:	张晓芳,徐辉,刘宏文,王明涛,王仁斌,李毅,赵德辉,李振强,石其寿,赵伟东,王伟,付晚涛.大气CO₂浓度升高对繁茂膜海绵滤食海水细菌能力的影响[J].海洋科学,2017,41(7):16-22.

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大气CO₂浓度升高对繁茂膜海绵滤食海水细菌能力的影响
张晓芳¹, 徐辉², 刘宏文², 王明涛³, 王仁斌⁴, 李毅³, 赵德辉³, 李振强⁴, 石其寿⁵, 赵伟东³, 王伟⁴, 付晚涛^3,6
1.獐子岛集团股份有限公司;2.大连市环境监测中心;3.大连海洋大学海洋科技与环境学院;4.长海渔港监督处;5.长海县海洋与渔业局獐子岛监督管理站;6.辽宁省高校近岸海洋环境科学与技术重点实验室

摘要:

通过模拟大气CO₂浓度升高, 研究其对海绵滤食细菌功能的影响。在模拟大气CO₂浓度升高生态系统中, 探究了大气CO₂浓度387、500、750和1 000 μmol/mol环境下繁茂膜海绵(Hymeniacidon perlevis)滤食灭菌海水中大肠杆菌(Escherichia coli AS 1.1017)和灿烂弧菌(Vibrio splendidus)的能力。结果表明: 在24 h实验期间, 模拟大气CO₂从目前约387 μmol/mol升高至500 μmol/mol, 繁茂膜海绵滤食大肠杆菌和灿烂弧菌效率提高了。当模拟大气CO₂ 750 μmol/mol时, 繁茂膜海绵滤食海水中大肠杆菌和灿烂弧菌功能都下降了, 说明繁茂膜海绵已经受到大气较高浓度CO₂损害。模拟大气CO₂为1 000 μmol/mol时, 繁茂膜海绵基本丧失了滤食海水中大肠杆菌和灿烂弧菌的功能。上述结果可为了解大气CO₂浓度对近岸海洋生态系统的影响提供科学依据。

关键词: 大气CO₂浓度升高影响繁茂膜海绵(Hymeniacidon perlevis) 滤食细菌

DOI：10.11759/hykx20170227001

分类号:

基金项目:“十二五”国家科技支撑计划项目(2015BAD13B05); 辽宁省海洋与渔业厅科研计划项目(201215); 大连海洋大学2012 年校列科研项目(2012HYDX09)

Influence of increasing atmospheric CO₂ concentration on the ability of the marine sponge Hymeniacidon perlevis to filterfeed bacteria in seawater

ZHANG Xiao-fang,XU Hui,LIU Hong-wen,WANG Ming-tao,WANG Ren-bin,LI Yi,ZHAO De-hui,LI Zhen-qiang,SHI Qi-shou,ZHAO Wei-dong,WANG Wei,FU Wan-tao

Abstract:

The influence of carbon dioxide (CO₂) concentration on the capability of Hymeniacidon perlevis filter-feeding bacteria was studied by simulating an elevated atmospheric CO₂ concentration. In the simulated ecosystem, the capability of H. perlevis filter-feeding Escherichia coli AS 1.1017 and Vibrio splendidus was explored, respectively, in sterilized seawater under 387, 500, 750 and 1 000 μmol/mol. The results showed that the efficiency of H. perlevis filter-feeding bacteria was improved when the CO₂ concentration elevated from 387 μmol/mol to 500 μmol/mol; however, the capacity of H. perlevis filter-feeding bacteria was decreased when the CO₂ concentration elevated to 750 μmol/mol. This result indicates that the relatively high CO₂ concentration damages the filter-feeding efficiency of H. perlevis, and the efficiency was lost when the CO₂ concentration elevated to 1000 μmol/mol. This study provides a scientific basis for predicting the effect of atmospheric CO₂ concentration on the coastal ecosystem.

Key words: elevated atmospheric CO₂ concentration influence Hymeniacidon perlevis filter-feeding marine bacteria