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Ocean acidification will not affect the shell strength of juveniles of the commercial clam species chamelea gallina: implications of the local alkalinization of seawater

2024-11Journal article Open access
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dc.contributor.authorSORDO, LAURA
dc.contributor.authorEsteves, Eduardo
dc.contributor.authorValente, Joana F.A.
dc.contributor.authorDuarte, Catarina
dc.contributor.authorAlves, Nuno
dc.contributor.authorBaptista, Teresa
dc.contributor.authorGaspar, Miguel
dc.contributor.authorAnibal, Jaime
dc.date.accessioned2024-10-09T08:32:23Z
dc.date.available2024-10-09T08:32:23Z
dc.date.issued2024-11
dc.description.abstractOcean acidification (OA) is expected to decrease the strength of bivalves' shells, especially during the early stages of development, with negative consequences to the resilience of natural populations and the economy. The objectives of the present study were to assess the long-term effect of increasing pCO(2) after 217 days of exposure under controlled conditions of pH of similar to 8.2, 8.0, and 7.7 on the strength and integrity of shells of juveniles of the commercial striped venus clam Chamelea gallina. Shell strength was estimated through compression tests and integrity through scanning electron microscopy (SEM) and dispersive X-ray analyses (EDX). The results showed that under increasing pCO(2) the shell strength of juveniles is unaffected, which could be related to the locally elevated total alkalinity of seawater with respect to other parts of the coastal lagoon. However, despite this, it was also observed that the juvenile clams exposed to elevated pCO(2) decreased their shell thickness and increased the porosity of their prismatic layer. Under future OA conditions, these changes could eventually compromise the integrity of the shells, becoming more vulnerable to the attack of predators and breakable during fishing operations. Future studies should address the plasticity of the organisms and the effect of the alkalinization of seawater on the resilience of shellfish juveniles under global change conditions.eng
dc.description.sponsorship0139_VENUS_5_E. 2017-2019; IPMA-2018-008-BI; UIDP/04044/2020; 022158; CENTRO-01-0145-FEDER-000014
dc.identifier.doi10.1016/j.marenvres.2024.106746
dc.identifier.issn0141-1136
dc.identifier.urihttp://hdl.handle.net/10400.1/26026
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.ispartofMarine Environmental Research
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBivalve juveniles
dc.subjectChamelea gallina
dc.subjectShell strength and integrity
dc.subjectOcean acidification (OA)
dc.subjectTotal alkalinity (TA)
dc.titleOcean acidification will not affect the shell strength of juveniles of the commercial clam species chamelea gallina: implications of the local alkalinization of seawatereng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage106746
oaire.citation.titleMarine Environmental Research
oaire.citation.volume202
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSORDO
person.familyNameEsteves
person.familyNameGaspar
person.familyNameAnibal
person.givenNameLAURA
person.givenNameEduardo
person.givenNameMiguel
person.givenNameJaime
person.identifier558340
person.identifier.ciencia-id6A17-AE94-6B54
person.identifier.ciencia-idC81D-666A-FF24
person.identifier.ciencia-idF719-07AC-E41F
person.identifier.ciencia-idE01D-F785-AB70
person.identifier.orcid0000-0002-1045-2014
person.identifier.orcid0000-0002-1872-8185
person.identifier.orcid0000-0001-9245-8518
person.identifier.orcid0000-0002-9704-5824
person.identifier.ridE-9582-2012
person.identifier.ridF-5398-2011
person.identifier.ridA-6080-2010
person.identifier.scopus-author-id36987005700
person.identifier.scopus-author-id7003885183
person.identifier.scopus-author-id23501123500
person.identifier.scopus-author-id6506031408
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