Hypoxia aggravates the effects of ocean acidification on the physiological energetics of the blue mussel Mytilus edulis

被引：42

作者：

Gu, Huaxin ^{[1
,3
,6
]}

Shang, Yueyong ^{[1
,3
,6
]}

Clements, Jeff ^{[4
]}

Dupont, Sam ^{[5
]}

Wang, Ting ^{[1
,3
,6
]}

Wei, Shuaishuai ^{[1
,3
,6
]}

Wang, Xinghuo ^{[1
,3
,6
]}

Chen, Jianfang ^{[2
,7
]}

Huang, Wei ^{[2
,7
]}

Hu, Menghong ^{[1
,3
,6
]}

Wang, Youji ^{[1
,2
,3
,6
,7
]}

机构：

[1] Shanghai Ocean Univ, Natl Demonstrat Ctr Expt Fisheries Sci Educ, Shanghai, Peoples R China

[2] Minist Nat Resources, Key Lab Satellite Ocean Environm Dynam, Inst Oceanog 2, Hangzhou, Zhejiang, Peoples R China

[3] Shanghai Ocean Univ, Int Res Ctr Marine Biosci, Minist Sci & Technol, Shanghai, Peoples R China

[4] Norwegian Univ Sci & Technol, Dept Biol, Hgsk Ringen 5, N-7491 Trondheim, Norway

[5] Univ Gothenburg, Sven Loven Ctr Marine Infrastruct Kristineberg, Dept Biol & Environm Sci, Fiskebackskil, Sweden

[6] Shanghai Ocean Univ, Key Lab Explorat & Utilizat Aquat Genet Resources, Shanghai, Peoples R China

[7] Minist Nat Resources, Lab Marine Ecosyst & Biogeochem, Inst Oceanog 2, Hangzhou, Zhejiang, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2019年 / 149卷

关键词：

Bivalve; Physiology; Environmental stress; Global change biology; Multiple stressors; SHORT-TERM EXPOSURE; BEHAVIORAL-RESPONSES; FEEDING PHYSIOLOGY; PREY SELECTION; ENERGY BUDGET; CARBONIC-ACID; GROWTH; AVAILABILITY; SEAWATER; QUALITY;

D O I：

10.1016/j.marpolbul.2019.110538

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Apart from ocean acidification, hypoxia is another stressor to marine organisms, especially those in coastal waters. Their interactive effects of elevated CO2 and hypoxia on the physiological energetics in mussel Mytilus edulis were evaluated. Mussels were exposed to three pH levels (8.1, 7.7, 7.3) at two dissolved oxygen levels (6 and 2 mg L-1) and clearance rate, absorption efficiency, respiration rate, excretion rate, scope for growth and O:N ratio were measured during a14-day exposure. After exposure, all parameters (except excretion rate) were significantly reduced under low pH and hypoxic conditions, whereas excretion rate was significantly increased. Additive effects of low pH and hypoxia were evident for all parameters and low pH appeared to elicit a stronger effect than hypoxia (2.0 mg L-1). Overall, hypoxia can aggravate the effects of acidification on the physiological energetics of mussels, and their populations may be diminished by these stressors.

引用

页数：7

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