Assessing the influence of ocean acidification to marine amphipods: A comparative study

Assessing the influence of ocean acidification to marine amphipods: A comparative study

Author Passarelli, Marina Cunha Google Scholar
Riba, Inmaculada Google Scholar
Cesar, Augusto Autor UNIFESP Google Scholar
Serrano-Bernando, F. Google Scholar
DelValls, Tomas Ángel Google Scholar
Abstract CO2 increases in the ocean may occur both by the capacity of CO2 exchanges with its dissolved form between atmosphere and surface seawater as well by CO2 leaks during the carbon capture and storage (CCS) process. The decrease in seawater pH may result in a reduction in the concentration of both hydroxide and carbonate (OH- and CO32-). The main aim of this work is to conduct an ecotoxicology comparative survey using two amphipod species from Europe and Brazil exposed to different acidification (CO2) scenarios. For it, an integrative approach based on the weight of evidence was used for comparative proposes to identify the effects on the amphipods association with the acidification and with the related mobility of metals. The results demonstrate that the Ampelisca brevicornis species is more sensitive to pH reductions than the Hyale youngi species. Furthermore, this study has demonstrated that the CO2 enrichment in aquatic ecosystems would cause changes on the mobility of certain metals (Zn, Cu and As). The results of Principal Component Analysis (PCA) showed that the dissolved Zn in overlying water was strongly correlated with the decrease in the pH and was associated with increased toxicity of the sediment to the exposed organisms, mainly for the A. brevicornis species from Spain. Nevertheless, similar results were found in relation to the mortality of amphipods in low pH values for all sediment tested. Concluding, it is highlighted the importance of comparative studies in different types of environment and improve the understood of the risks associated with the ocean acidification. (C) 2017 Elsevier B.V. All rights reserved.
Keywords CO2 enrichment
Ampelisca brevicornis
Hyale youngi
Toxicity tests
Weight of evidence
Sediment metals
xmlui.dri2xhtml.METS-1.0.item-coverage Amsterdam
Language English
Sponsor Santander Bank/UNESCO Chair UNITWIN/WiCop
Erasmus Mundus Program
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Ministry of Education in Spain through the Movilidad de Profesores en el Extranjero program
Grant number CNPq: 305869/2013-2
Date 2017
Published in Science Of The Total Environment. Amsterdam, v. 595, p. 759-768, 2017.
ISSN 0048-9697 (Sherpa/Romeo, impact factor)
Publisher Elsevier Science Bv
Extent 759-768
Origin https://dx.doi.org/10.1016/j.scitotenv.2017.04.004
Access rights Closed access
Type Article
Web of Science ID WOS:000401556800075
URI https://repositorio.unifesp.br/handle/11600/57343

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