Distribution, population structure, population biomass and morphological characteristics of the tunicate <i>Pyura stolonifera</i> in the Bay of Antofagasta, Chile

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dc.contributor.authorCastilla, JC
dc.contributor.authorGuiñez, R
dc.contributor.authorAlvarado, JL
dc.contributor.authorPacheco, C
dc.contributor.authorVaras, M
dc.date.accessioned2025-01-21T01:31:14Z
dc.date.available2025-01-21T01:31:14Z
dc.date.issued2000
dc.description.abstractThe present study analyzes the distribution, population structure, population biomass and morphological characteristics of the intertidal tunicate Pyura stolonifera (Heller, 1878) in the Bay of Antofagasta, Chile, where the species shows a reduced geographical range extending around 60-70 km. Three sites along its distribution were studied. At the central site the tunicate presents the widest intertidal belts, reaching nearly 11 m (the mid-intertidal-Pyura-zone shows the higher percent cover). Population dry biomass here averaged up to 20.45 kg.m(-2), representing one of the highest intertidal specific biomasses reported in the literature. Lower values occur towards the borders of its distribution. Population densities were over 1800 indiv..m(-2) at mid-intertidal-Pyura-belts. Crowding and competition potentially affect morphological characteristics and the energy/tissue allocation along the intertidal and geographical gradient of P. stolonifera.
dc.fuente.origenWOS
dc.identifier.issn0173-9565
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97018
dc.identifier.wosidWOS:000088978800005
dc.issue.numero2
dc.language.isoen
dc.pagina.final174
dc.pagina.inicio161
dc.revistaMarine ecology-pubblicazioni della stazione zoologica di napoli i
dc.rightsacceso restringido
dc.subjecttunicate
dc.subjectPyura
dc.subjectChile
dc.subjectgeographical distribution
dc.subjectpopulation structure
dc.subjectpopulation biomass
dc.subjectmorphology
dc.subjectcrowding
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.titleDistribution, population structure, population biomass and morphological characteristics of the tunicate <i>Pyura stolonifera</i> in the Bay of Antofagasta, Chile
dc.typeartículo
dc.volumen21
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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