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Calcification, growth and mortality of juvenile clams Ruditapes decussatus under increased pCO(2) and reduced pH: variable responses to ocean acidification at local scales?

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dc.contributor.authorRange, Pedro
dc.contributor.authorChicharo, Alexandra Maria
dc.contributor.authorBen-Hamadou, Radhouan
dc.contributor.authorPiló, David
dc.contributor.authorMatias, Domitília
dc.contributor.authorJoaquim, Sandra
dc.contributor.authorOliveira, A. P.
dc.contributor.authorChícharo, Luís
dc.date.accessioned2013-02-22T14:14:28Z
dc.date.available2013-02-22T14:14:28Z
dc.date.issued2011
dc.date.updated2013-02-19T14:38:58Z
dc.description.abstractWe investigated the effects of ocean acidification on juvenile clams Ruditapes decussatus (average shell length 10.24 mm) in a controlled CO2 perturbation experiment. The carbonate chemistry of seawater was manipulated by diffusing pure CO2, to attain two reduced pH levels (by −0.4 and −0.7 pH units), which were compared to unmanipulated seawater. After 75 days we found no differences among pH treatments in terms of net calcification, size or weight of the clams. The naturally elevated total alkalinity of local seawater probably contributed to buffer the effects of increased pCO2 and reduced pH. Marine organisms may, therefore, show diverse responses to ocean acidification at local scales, particularly in coastal, estuarine and transitional waters, where the physical–chemical characteristics of seawater are most variable. Mortality was significantly reduced in the acidified treatments. This trend was probably related to the occurrence of spontaneous spawning events in the control and intermediate acidification treatments. Spawning, which was unexpected due to the small size of the clams, was not observed for the pH −0.7 treatment, suggesting that the increased survival under acidified conditions may have been associated with a delay in the reproductive cycle of the clams. Future research about the impacts of ocean acidification on marine biodiversity should be extended to other types of biological and ecological processes, apart from biological calcification.por
dc.identifier.citationRange, P.; Chicharo, M. A.; Ben-Hamadou, R.; Pilo, D.; Matias, D.; Joaquim, S.; Oliveira, A. P.; Chicharo, L. M. Z. Calcification, growth and mortality of juvenile clams Ruditapes decussatus under increased pCO(2) and reduced pH: Variable responses to ocean acidification at local scales?, Journal of Experimental Marine Biology and Ecology, 396, 2, 177-184, 2011.por
dc.identifier.issn0022-0981
dc.identifier.otherAUT: MCH00377; AOL01719;
dc.identifier.urihttp://hdl.handle.net/10400.1/2398
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectBivalvespor
dc.subjectCalcium carbonatepor
dc.subjectCarbon dioxidepor
dc.subjectClimate changepor
dc.subjectPhysiologypor
dc.subjectRia Formosapor
dc.titleCalcification, growth and mortality of juvenile clams Ruditapes decussatus under increased pCO(2) and reduced pH: variable responses to ocean acidification at local scales?por
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage184por
oaire.citation.issue2por
oaire.citation.startPage177por
oaire.citation.titleJournal of Experimental Marine Biology and Ecologypor
oaire.citation.volume396por
person.familyNameRange
person.familyNameTeodosio
person.familyNameBen-Hamadou
person.familyNamePiló
person.familyNameChicharo
person.givenNamePedro
person.givenNameMaria
person.givenNameRadhouan
person.givenNameDavid
person.givenNameLuis
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-id291E-1F70-F443
person.identifier.ciencia-id6716-EE1C-B995
person.identifier.orcid0000-0002-9269-2416
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0003-2686-5822
person.identifier.orcid0000-0002-1810-7135
person.identifier.orcid0000-0002-4933-2300
person.identifier.ridC-5558-2008
person.identifier.ridB-5077-2013
person.identifier.ridF-8192-2011
person.identifier.scopus-author-id57200299298
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id15764751100
person.identifier.scopus-author-id36052051100
person.identifier.scopus-author-id6602881426
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublication.latestForDiscoveryb39b2d6d-d6f5-4130-a9b9-4e7624d44676

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