Assessing the potential health risk of cyanobacteria harmful algal blooms and cyanotoxins in Lake Naivasha, Kenya

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dc.contributor.authorRaffoul, Melissa H.
dc.contributor.departmentSchool of Graduate and Postdoctoral Studies, University of Western Ontario
dc.date.accessioned2014-11-24T17:03:18Z
dc.date.available2014-11-24T17:03:18Z
dc.date.copyright2012
dc.date.issued2012
dc.description.abstractCyanobacteria harmful algal blooms (cyanoHABs) pose a threat to water quality and human health. The Lake Naivasha, Kenya community expressed concern about these events which prompted this study of influences, characteristics and health impacts of cyanoHABs. While eutrophication of Lake Naivasha was caused by years of nutrient loading from agricultural activities, land use changes and improper sewage treatment, results suggest that lake-wide cyanoHAB formation was controlled by shifts from drought to flood conditions, followed by relative stability. Particulate concentrations of the liver toxin microcystin were less than provisional guidelines; however, our limited knowledge on long-term microcystin impacts is limited and future cyanoHABs could have higher levels. CyanoHABs may play a role in dissolved oxygen dynamics and in turn fish health, but the extent of this is unclear without further study. Better management practices of Lake Naivasha’s ecosystem services will lead to enhanced health and wellbeing of the lake and community.en
dc.description.degreeMaster's degree
dc.formatTexten
dc.format.extent1 digital file (128 p. : ill.)en
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10625/53334
dc.language.isoen
dc.publisherSchool of Graduate and Postdoctoral Studies, University of Western Ontario, London, ON, CAen
dc.subjectCYANOBACTERIA HARMFUL ALGAL BLOOMSen
dc.subjectCYANOTOXINSen
dc.subjectMICROCYSTINen
dc.subjectFRESHWATERen
dc.subjectECOSYSTEM SERVICESen
dc.subjectLAKE NAIVASHAen
dc.subjectKENYAen
dc.subjectAFRICAen
dc.subjectENVIRONMENTAL HEALTHen
dc.subjectWATER QUALITYen
dc.titleAssessing the potential health risk of cyanobacteria harmful algal blooms and cyanotoxins in Lake Naivasha, Kenyaen
dc.title.alternativeHealth risk of cyanoHABs in Lake Naivasha, Kenyaen
dc.typeThesisen
idrc.copyright.holderMelissa H. Raffoul
idrc.dspace.accessIDRC Onlyen
idrc.project.componentnumber103050002
idrc.project.number103050
idrc.project.titleLake Naivasha Sustainability : Ecosystem Improvement for Health and Wellbeingen
idrc.recordsserver.bcsnumberIC01-426-22
idrc.rims.adhocgroupIDRC SUPPORTEDen

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IDRC Research Results / Résultats de recherches du CRDI
2010-2019 / Années 2010-2019
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