Plasticity and trade-offs in physiological traits of intertidal mussels subjected to freshwater-induced environmental variation

Handle URI:
http://hdl.handle.net/10754/621779
Title:
Plasticity and trade-offs in physiological traits of intertidal mussels subjected to freshwater-induced environmental variation
Authors:
Ramajo, L; Prado, L; Rodriguez-Navarro, AB; Lardies, MA; Duarte, Carlos M. ( 0000-0002-1213-1361 ) ; Lagos, NA
Abstract:
Environmental gradients play an important role in shaping geographic variability in coastal marine populations. Thus, the ability of organisms to cope with these changes will depend on their potential to acclimatize, or adapt, to these new environmental conditions. We investigated the spatial variability in biological responses shown by Perumytilus purpuratus mussels collected from 2 intertidal areas experiencing contrasting freshwater input influences (river-influenced vs. marine conditions). To highlight the role of plasticity and adaptive potential in biological responses, we performed a reciprocal-Transplant experiment and measured relevant phenotypic traits including mortality, growth, calcification, metabolism, and chemical composition of the shell periostra-cum. We determined that mussels exposed to river-influenced conditions had increased metabolic rates and reduced growth rates, as compared to mussels experiencing marine conditions (p > 0.05). While the energy investment strategies of the 2 local populations resulted in similar net calcification rates, these rates decreased significantly when mussels were transplanted to the river-influenced site. Stressful conditions at the river-influenced site were evidenced by decreased survivorship across treatments. Freshwater inputs modify the organic composition of the shell periostracum through a significant reduction in polysaccharides. Although our field experiment did not identify specific environmental factors underlying these contrasting phenotypic changes, the results imply that plasticity plays a strong role when P. purpuratus is exposed to some combination of natural (e.g. salinity) and anthropogenic influences (e.g. pollution), and that the lack of exposure to freshwater may promote less tolerant mussels with greater potential for local adaptation. © The authors 2016.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Ramajo L, Prado L, Rodriguez-Navarro A, Lardies M, Duarte C, et al. (2016) Plasticity and trade-offs in physiological traits of intertidal mussels subjected to freshwater-induced environmental variation. Mar Ecol Prog Ser 553: 93–109. Available: http://dx.doi.org/10.3354/meps11764.
Publisher:
Inter-Research Science Center
Journal:
Marine Ecology Progress Series
Issue Date:
17-May-2016
DOI:
10.3354/meps11764
Type:
Article
ISSN:
0171-8630; 1616-1599
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorRamajo, Len
dc.contributor.authorPrado, Len
dc.contributor.authorRodriguez-Navarro, ABen
dc.contributor.authorLardies, MAen
dc.contributor.authorDuarte, Carlos M.en
dc.contributor.authorLagos, NAen
dc.date.accessioned2016-11-03T13:24:47Z-
dc.date.available2016-11-03T13:24:47Z-
dc.date.issued2016-05-17en
dc.identifier.citationRamajo L, Prado L, Rodriguez-Navarro A, Lardies M, Duarte C, et al. (2016) Plasticity and trade-offs in physiological traits of intertidal mussels subjected to freshwater-induced environmental variation. Mar Ecol Prog Ser 553: 93–109. Available: http://dx.doi.org/10.3354/meps11764.en
dc.identifier.issn0171-8630en
dc.identifier.issn1616-1599en
dc.identifier.doi10.3354/meps11764en
dc.identifier.urihttp://hdl.handle.net/10754/621779-
dc.description.abstractEnvironmental gradients play an important role in shaping geographic variability in coastal marine populations. Thus, the ability of organisms to cope with these changes will depend on their potential to acclimatize, or adapt, to these new environmental conditions. We investigated the spatial variability in biological responses shown by Perumytilus purpuratus mussels collected from 2 intertidal areas experiencing contrasting freshwater input influences (river-influenced vs. marine conditions). To highlight the role of plasticity and adaptive potential in biological responses, we performed a reciprocal-Transplant experiment and measured relevant phenotypic traits including mortality, growth, calcification, metabolism, and chemical composition of the shell periostra-cum. We determined that mussels exposed to river-influenced conditions had increased metabolic rates and reduced growth rates, as compared to mussels experiencing marine conditions (p > 0.05). While the energy investment strategies of the 2 local populations resulted in similar net calcification rates, these rates decreased significantly when mussels were transplanted to the river-influenced site. Stressful conditions at the river-influenced site were evidenced by decreased survivorship across treatments. Freshwater inputs modify the organic composition of the shell periostracum through a significant reduction in polysaccharides. Although our field experiment did not identify specific environmental factors underlying these contrasting phenotypic changes, the results imply that plasticity plays a strong role when P. purpuratus is exposed to some combination of natural (e.g. salinity) and anthropogenic influences (e.g. pollution), and that the lack of exposure to freshwater may promote less tolerant mussels with greater potential for local adaptation. © The authors 2016.en
dc.publisherInter-Research Science Centeren
dc.subjectCalcificationen
dc.titlePlasticity and trade-offs in physiological traits of intertidal mussels subjected to freshwater-induced environmental variationen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalMarine Ecology Progress Seriesen
dc.contributor.institutionGlobal Change Department, Instituto Mediterráneo de Estudios Avanzados (IMEDEA, CSIC-UIB), C/ Miquel Marqués 21, Esporles (Mallorca), Spainen
dc.contributor.institutionCentro de Investigación e Innovación para El Cambio Climático (CiiCC), Universidad Santo Tomás, Avda. Ejército 146, Santiago, Chileen
dc.contributor.institutionFacultad de Artes Liberales and Ingeniería y Ciencias, Universidad Adolfo Ibañez, Avda. Diagonal Las Torres 2640, Peñalolén, Santiago, Chileen
dc.contributor.institutionDepartamento de Mineralogía y Petrología, Universidad de Granada, Avda. Campus de Fuentenueva s/n, Granada, Spainen
kaust.authorDuarte, Carlos M.en
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