Effects of a cyanobacterial bloom sample containin gmicrocystin-LR on the ecophysiology of Daphnia similis

dc.creatorHerrera, Natalia
dc.creatorPalacio, Jaime
dc.creatorEcheverri, Fernando
dc.creatorFerrão-Filho, Aloysio
dc.date2015-04-14T12:38:08Z
dc.date2015-04-14T12:38:08Z
dc.date2014
dc.date.accessioned2023-09-26T20:18:13Z
dc.date.available2023-09-26T20:18:13Z
dc.identifierHERRERA, Natalia et al.Effects of a cyanobacterial bloom sample containing microcystin-LR on the ecophysiology of Daphnia similis. Toxicology Reports, n.1, p.909-914, 2014.
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/9964
dc.identifierdoi:10.1016/j.toxrep.2014.10.017
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8853759
dc.descriptionThis study was sponsored by Empresas Públicas deMedellin (EPM, Colombia), grant 29990832845; NH thanksto EPM for a fellowship, besides to Drs. Wayne Carmichael,Linda Lawton and Sandra Azevedo for their contributionsduring this research.
dc.descriptionoftoxic compounds. However, no study so far has shown the effects of natural blooms sam-ples on the physiological parameters related to the ecology of Daphnia. In this study weused a natural bloom sample obtained from a reservoir in Colombia to evaluate its effectson five parameters related to Daphnia’s feeding behavior, swimming movements and phys-iology: second antennae movement (swimming), mandible movement (feeding), thoracicappendages (feeding), postabdomen movement (rejection of food particles) and heart rate(physiology). The results revealed significant changes in all parameters evaluated at twodifferent concentrations of aqueous extracts of the bloom: second antennae movementsincreased significantly and there were significant reductions in mandibular movements,thoracic movements and heart rate. Although postabdominal movements showed highvariability with no distinctive pattern between control and treatments, the reduction inthe other parameters (such as heart rate over time) could possibly reflect an intoxicationby microcystins or a behavioral response (e.g., feeding inhibition).
dc.formatapplication/pdf
dc.languageeng
dc.publisherElsevier
dc.rightsopen access
dc.subjectCianobactérias
dc.subjectFisiologia
dc.subjectMicrocistinas
dc.subjectCyanobacteria
dc.subjectMicrocystins
dc.subjectPhysiology
dc.subjectDaphnia similis
dc.subjectMicrocistinas
dc.subjectCianobacterias
dc.subjectMicrocistinas
dc.subjectCianobactérias
dc.titleEffects of a cyanobacterial bloom sample containin gmicrocystin-LR on the ecophysiology of Daphnia similis
dc.typeArticle


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