Assessment of Eutrophication and Cyanobacterial Occurrences in a Freshwater Lake, in Turkey

Journal of Applied Biological Sciences

Fatma GURBUZ¹  Aynur GUL KARAHAN¹ 

关键词: Cyanobacteria;    Eutrophication;    Lake Kovada;    Microcystis aeruginosa;    Water quality analyses.;   

DOI  :  

学科分类：生物科学（综合）

来源: Nobel Bilim ve Arasirma Merkezi/Nobel Science and Research Cente

【 摘 要 】

Cyanobacterialdominanceinlakeshasreceivedmuchattentioninthepastbecauseoffrequentbloomformationinlakesofhighertrophiclevels.Studyarea(LakeKovada)hasbeenusedforrecreationalpurposes;fishing,swimming,gardenwateringetc.Asfartoourknowledge,cyanobacterialoccurrence,especiallyMicrocystisaeruginosadominanceinthelakeneverhasbeenreportedbefore.HenceintracellularmicrocystinanalyseswereperformedbyimmunoassayfromfiltratesampleswhereMaeruginosaobservedhighinnumbers.Intotaleighteenspeciesbelongingto10generawereidentifiedinthelake.SomeindicatorsofwaterqualityinLakeKovadawerealsomeasuredinordertocharacterisethetrophicstatusofthelake.Anaverageof6monthsforsolublereactivephosphateanalysiswasmeasuredas109.8±0.04μgl-1.Thesefindingsareevenexceedingthelimitsfortotalphosphateconcentrationtocontrolcyanobacterialbloomandmeanammoniawasdetected668±58μgl-1.WaterqualitycriteriaforfreeNH3wassuggestedtobe20μgl-1byUSEPA.Accordingtotheresultswhichwereobtainedfromthewaterqualityanalyses,thelakewaterispollutedandunderriskofbeinghighlypopulatedwithcyanobacteria.Theeffectivemonitoringprogrammesforthereductionofcyanobacterialtoxinproblemsinwatersrequiretheidentificationanduseofappropriateguidelinesworldwide.

【 授权许可】

Unknown