Geographical Variation of Shell Thickness in the Mussel <i>Perumytilus purpuratus</i> Along the Southeast Pacific Coast

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dc.contributor.authorBriones, Carolina
dc.contributor.authorRivadeneira, Marcelo M.
dc.contributor.authorFernandez, Miriam
dc.contributor.authorGuinez, Ricardo
dc.date.accessioned2025-01-23T21:41:28Z
dc.date.available2025-01-23T21:41:28Z
dc.date.issued2014
dc.description.abstractAt broad geographical scales, the variation in bivalve shell thickness can be modulated by environmental factors that vary with latitude, such as sea surface temperature (SST), seawater pH, or calcium carbonate availability. Mussels usually form multilayered beds, and shell thickness is also expected to be affected by density and layering due to intraspecific competition. In this work, we explored the geographical variation of shell thickness in the intertidal mussel Perumytilus purpuratus between 18 degrees and 42 degrees S along the southeastern Pacific coast. We tested the hypothesis that there was a positive relationship between shell thickness and SST, and then we explored other variables that could have an effect on thickness, such as density, number of layers, and others environmental variables (pH and calcite concentration). The expected positive linear relationship between shell thickness and sea surface temperature was not found, but when the other population variables were included in the analysis, an unexpected inverse SST-thickness relationships appeared as significant, probably because this species could be adapted to colder and more acid seawater as are those of the tips of South America. Thickness was also negatively affected by density, which was expected for a gregarious species showing high intraspecific competition. Finally, our results highlight the importance of including density and crowding effects when macroscale patterns are explored, particularly in gregarious species, since these patterns could also be modulated by density-dependent processes, which might then override latitudinal trends of shell thickness when they are not included in the analyses.
dc.fuente.origenWOS
dc.identifier.eissn1939-8697
dc.identifier.issn0006-3185
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101641
dc.identifier.wosidWOS:000347783300002
dc.issue.numero3
dc.language.isoen
dc.pagina.final231
dc.pagina.inicio221
dc.revistaBiological bulletin
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleGeographical Variation of Shell Thickness in the Mussel <i>Perumytilus purpuratus</i> Along the Southeast Pacific Coast
dc.typeartículo
dc.volumen227
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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