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Comparative analysis of two rivers infected with Didymosphenia geminata in southern Chile

dc.contributorCORFOen-US
dc.creatorBravo, Sandra
dc.creatorWhelan, Ken
dc.creatorSambra, Karla
dc.creatorSilva, María T.
dc.creatorPonce, Nike
dc.creatorCampos, Patricio
dc.date2019-09-01
dc.date.accessioned2020-11-05T13:36:40Z
dc.date.available2020-11-05T13:36:40Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol47-issue4-fulltext-8
dc.identifier10.3856/vol47-issue4-fulltext-8
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/159187
dc.descriptionThe Puelo and Petrohué rivers were surveyed between April 2016 and February 2017 to assess the presence and seasonal abundance of Didymosphenia geminata in the wild aquatic systems of these two important rivers in southern Chile. Didymo was reported in the Puelo River in 2012, while it was declared absent from the Petrohué River before this study commenced in the fall of 2016. Results showed that cells of D. geminata were recorded in both rivers, in the Phytobenthos as well as in the water column. However, the classical mucilage which characterizes this plague was only recorded in one of the sampled rivers (Puelo). The mucilage was not recorded in any of the sections sampled in the Petrohué River, which was attributed to the high concentration of phosphorous present in the system. The concentration of phosphorous recorded throughout the study in the Puelo River was low. However, differences in the recorded presence or absence of D. geminata between sampling sites on the Petrohué River was mainly attributable to the availability of incident sunlight. This study records for the first time the presence of D. geminata in the Petrohué River.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol47-issue4-fulltext-8/1092
dc.rightsCopyright (c) 2019 Latin American Journal of Aquatic Researchen-US
dc.sourceLatin American Journal of Aquatic Research; Vol 47, No 4 (2019); 665-676en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 47, No 4 (2019); 665-676es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectDidymosphenia geminata; seasonal abundance; phosphorous availability; aquatic invasions; Puelo River; Petrohué River; southern Chileen-US
dc.titleComparative analysis of two rivers infected with Didymosphenia geminata in southern Chileen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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