EFFECT OF MARINE ACIDIFICATION ON CALCIFICATION AND RESPIRATION OF CHLAMYS FARRERI

被引：18

作者：

Zhang Mingliang ^{[1
,2
,3
]}

Fang Jianguang ^{[1
]}

Zhang Jihong ^{[1
]}

Li Bin ^{[1
,2
,3
]}

Ren Shengmin ^{[1
]}

Mao Yuze ^{[1
]}

Gao Yaping ^{[1
]}

机构：

[1] Chinese Acad Fisheries Res, Yellow Sea Fisheries Res Inst, Mariculture Ecol & Carrying Capac Lab, Qingdao 266071, Peoples R China

[2] Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China

[3] Chinese Acad Sci, Grad Univ, Beijing 100047, Peoples R China

来源：

JOURNAL OF SHELLFISH RESEARCH | 2011年 / 30卷 / 02期

关键词：

marine acidification; calcification; respiration; Chlamys farreri; OCEAN ACIDIFICATION; CO2; CARBON; SEAWATER; FUTURE; GROWTH; HYPERCAPNIA; CALCIFIERS; IMPACT; IRON;

D O I：

10.2983/035.030.0211

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Marine acidification will be an important environmental problem in the near future as a result of persistent emissions of CO2 and dissolution into seawater. In this study, we found that calcification and respiration of the Zhikong scallop (Chlamysfarreri) are likely to be severely affected by increasing acidification. Calcification and respiration significantly declined as pH decreased. The calcification rate decreased by 33% when the pH of water was 7.9 compared with a pH of 8.1, and decreased close to 0 when the pH was reduced to 7.3. CO2 and O-2 respiratory rates were reduced by 14% and 11%, respectively, when pH decreased from 7.9 to 7.3. Increasing acidification also led to changes in the metabolic pathways of C. farreri. Under acidic conditions, proteins may replace carbohydrates as the metabolic substrate. The survival of C. farreri is likely to be severely threatened in the next few centuries.

引用

页码：267 / 271

页数：5