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dc.contributor.authorDadgar, Shahram
dc.contributor.authorChehrzad, Farbod
dc.contributor.authorRazmi, Komeil
dc.contributor.authorFaezi, Mohamad Reza
dc.contributor.authorNegarestan, Hossein
dc.coverage.spatialIranen_US
dc.coverage.spatialTaleghan damen_US
dc.coverage.spatialShahrud Riveren_US
dc.coverage.spatialHassanjun Riveren_US
dc.date.accessioned2018-08-03T19:31:59Z
dc.date.available2018-08-03T19:31:59Z
dc.date.issued2016
dc.identifier.urihttp://hdl.handle.net/1834/13545
dc.description.abstractThe result of chemical examination on samples demonstrates that most of assessed parameters met the environmental standards. The trend of BOD5 changes showed a decrease due to recreation of the rivers in the both studied points (1-4 stations of Khochireh zone and 5-8 Hassanjun zone). Therefore, aquaculture activities did not play a significant role in enhancing the instant organic load (p<0.05). Investigating the amount of total phosphorous revealed that Khochireh zone owned less pollutant consists of phosphorous compounds in comparison to Hassanjun zone. Hilsenhoff was an applied to determining the amount of pollution of assessed rivers. Biological and chemical examination of the Hassanjun, Khochireh and the main branch of Shahrud River was organized and done in May, 2012 by fast sampling method. Also monitored levels of total phosphorous showed the both rivers experienced an increase in downstream compared to upstream. The trace of frequency variation of macro benthos showed that Chironomidae and Elmidae families which are from Diptera and Coeloptera orders considered as the most crowded populations of macro benthos in the study zone with the total frequency average of 11.6 and 10.0 per square meter. The result of studying on macro benthos based on Hilsenhoff biological index elaborated in Khochireh zone the activity of aquaculture industry (without any urban zone and other industries) led to deteriorate the water quality from average in station 1 to average –weak in station 2 whereas, fish farms couldn’t affect the quality of main branch of Shahroud river due to higher volume, so didn’t any significant change in third and fourth station. In the Hassanjun River at the upstream of the fish farm the water quality seems to be never appropriate, that be alleviated to average in downstream. The main branch of Shahroud River was affected due to admixture with hassanjun River; therefore turned the quality from very good in station 7 to bad in station 8, obviously due to the low quality of Hassanjun River. To conclude, the chemical and biological investigation illustrate aquaculture activity throughout the Shahroud River affects the water quality in an ignorant level which is offset by recreation ability of the river. However, other types of pollutants which are emitted by other industries decrease the water quality of studied zone particularly at the downstream and entrance of the Taleghan dam.en_US
dc.description.sponsorshipIranian Fisheries Science Research Instituteen_US
dc.language.isofaen_US
dc.publisherIranian Fisheries Science Research Instituteen_US
dc.relation.ispartofseries46537;
dc.subject.otherChemicalen_US
dc.subject.otherEnvironmentalen_US
dc.subject.otherBiologicalen_US
dc.titleEffects of trout farm activities on water quality of Taleghan dam and related riversen_US
dc.typeReporten_US
dc.description.statusPublisheden_US
dc.format.pages36pp.en_US
dc.publisher.placeTehran, Iranen_US
dc.subject.asfaHilsenhoff Family Biological Indexen_US
dc.subject.asfaHFBIen_US
dc.subject.asfaMacrobenthosen_US
dc.subject.asfaQualitative impactsen_US
dc.subject.asfaRainbow Trouten_US
dc.subject.asfaFish farmen_US
dc.subject.asfaRapid Bioassessmenten_US
dc.subject.asfaAquacultureen_US
dc.subject.asfaPollutionen_US
dc.subject.asfaSamplingen_US
dc.subject.asfaChironomidaeen_US
dc.subject.asfaElmidaeen_US
dc.subject.asfaDipteraen_US
dc.subject.asfaCoelopteraen_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:26Z


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