DOI: 10.1111/gcb.12171
论文题名: Detrimental effects of ocean acidification on the economically important Mediterranean red coral (Corallium rubrum)
作者: Bramanti L. ; Movilla J. ; Guron M. ; Calvo E. ; Gori A. ; Dominguez-Carrió C. ; Grinyó J. ; Lopez-Sanz A. ; Martinez-Quintana A. ; Pelejero C. ; Ziveri P. ; Rossi S.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 6 起始页码: 1897
结束页码: 1908
语种: 英语
英文关键词: Biochemical balance
; Calcification
; Climate change
; Mediterranean red coral
; Metabolic effects of ocean acidification
; Ocean acidification
Scopus关键词: acid
; acidification
; biochemistry
; calcification
; climate change
; coral
; metabolism
; organic matter
; pH
; solubility
; spicule
; animal
; Anthozoa
; article
; chemistry
; pH
; physiology
; sea
; Acids
; Animals
; Anthozoa
; Hydrogen-Ion Concentration
; Oceans and Seas
; Mediterranean Sea
; Anthozoa
; Corallium rubrum
英文摘要: The mean predicted decrease of 0.3-0.4 pH units in the global surface ocean by the end of the century has prompted urgent research to assess the potential effects of ocean acidification on the marine environment, with strong emphasis on calcifying organisms. Among them, the Mediterranean red coral (Corallium rubrum) is expected to be particularly susceptible to acidification effects, due to the elevated solubility of its Mg-calcite skeleton. This, together with the large overexploitation of this species, depicts a bleak future for this organism over the next decades. In this study, we evaluated the effects of low pH on the species from aquaria experiments. Several colonies of C. rubrum were long-term maintained for 314 days in aquaria at two different pH levels (8.10 and 7.81, pHT). Calcification rate, spicule morphology, major biochemical constituents (protein, carbohydrates and lipids) and fatty acids composition were measured periodically. Exposure to lower pH conditions caused a significant decrease in the skeletal growth rate in comparison with the control treatment. Similarly, the spicule morphology clearly differed between both treatments at the end of the experiment, with aberrant shapes being observed only under the acidified conditions. On the other hand, while total organic matter was significantly higher under low pH conditions, no significant differences were detected between treatments regarding total carbohydrate, lipid, protein and fatty acid composition. However, the lower variability found among samples maintained in acidified conditions relative to controls, suggests a possible effect of pH decrease on the metabolism of the colonies. Our results show, for the first time, evidence of detrimental ocean acidification effects on this valuable and endangered coral species. © 2013 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62428
Appears in Collections: 影响、适应和脆弱性
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作者单位: California State University Northridge, 18111 Nordhoff st, Northridge, CA, 91330, United States; Institut de Ciències del Mar, ICM-CSIC, Passeig Marítim de la Barceloneta 37-49, Barcelona, 08003, Spain; ICTA-UAB, UAB Campus Cn s/n Cerdanyola del Vallés, Barcelona, 08193, Spain; Centre Scientifique de Monaco, Avenue Saint Martin 98000, Monaco; Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys 23, Barcelona Catalonia, 08010, Spain; Department of Earth Sciences - Earth and Climate cluster, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, Netherlands
Recommended Citation:
Bramanti L.,Movilla J.,Guron M.,et al. Detrimental effects of ocean acidification on the economically important Mediterranean red coral (Corallium rubrum)[J]. Global Change Biology,2013-01-01,19(6)