Effects of the availability of energetic and protective resources on the abundance of daphniids (Cladocera, Daphniidae) in Chilean Patagonian lakes (39°-51°S)

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dc.contributor.authorDe los Ríos Escalante, Patricio
dc.contributor.authorSoto, D.
dc.date2006
dc.date.accessioned2012-03-01T12:23:41Z
dc.date.available2012-03-01T12:23:41Z
dc.date.issued2012-03-01
dc.description.abstractThe lacustrine zooplankton of Chile is characterized by a low abundance of daphniid cladocerans and a predominance of calanoid copepods, thus making up a zooplankton community quite different from that described for North American lakes. To explain this pattern, this study investigates the role of the oligotrophy, and the resulting high transparency of a considerable number of locations. Due to low levels of dissolved organic carbon, viz., Daphniidae are exposed to ultraviolet radiation. Chilean lakes located between 39° and 51°S were studied, and maximum depth, mixing depth, trophic status, and dissolved organic carbon concentrations were measured and considered. The results obtained revealed that daphniids were abundant in oligo-mesotrophic lakes with shallow mixing depth. Thus, daphniid abundance is directly associated with chlorophyll-a concentration as an energetic resource, but also with sufficient depth, because this last condition provides protection against the penetration of ultraviolet radiation.es
dc.formatPDFes
dc.identifier.citationCrustaceana, Vol.79, N°1, 23-32, 2006es
dc.identifier.doi10.1163/156854006776759716es
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/816
dc.language.isoenes
dc.sourceCrustaceanaes
dc.subjectCrustáceoses
dc.subjectRecursos enegéticoses
dc.subjectCladoceraes
dc.subjectDaphniidaees
dc.titleEffects of the availability of energetic and protective resources on the abundance of daphniids (Cladocera, Daphniidae) in Chilean Patagonian lakes (39°-51°S)es
dc.typeArtículo de Revistaes
uct.carreraIngeniería en Acuiculturaes
uct.carreraIngeniería en Recursos Naturales Renovableses
uct.catalogadorFGEes
uct.comunidadRecursos Naturaleses
uct.facultadFacultad de Recursos Naturaleses
uct.indizacionISIes
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