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dc.contributor.authorNavan Maghsoodi, M.
dc.coverage.spatialIranen_US
dc.coverage.spatialZanjan Provinceen_US
dc.date.accessioned2017-11-29T18:06:30Z
dc.date.available2017-11-29T18:06:30Z
dc.date.issued2013
dc.identifier.issn1026-1354
dc.identifier.urihttp://hdl.handle.net/1834/10658
dc.description.abstractGhazal Ozen is one of the two main Caspian Sea catchments entering to the Sefidrood Dam. Sampling was done within 45 days from October 2009 till October 2011 on 3 stations. Benthic samples were fixed with %4 fomaline and were identified to the genus or species levels and investigated using to the Hilsenhoff biogogical index. In this study, 20 genera 7 orders were identified chironomidae as dominant family. Hilsenhoff Biological Index (HBI) for the 9 studied stations, were respectively, 5.4, 6.3, 5.46, 5.11, 5.13, 4.13, 4.25, 4, 4.23.The biological status of rivers based on HBI data was in the range of very good level. In the study, Chironomidae (30%), caenis sp. (16%), Baetis sp.(12%), Hydropsyche sp. (13%), Simmulium sp. (11%), Tabantus atratus and Sericostoma sp. (2%) and remaining benthos (14%) in Ghazan Ozan River. The results showed that the presence of organic matter pollutant has reduced oxygen levels and also affected the biota in Ghazal Ozan River.en_US
dc.language.isootheren_US
dc.subject.otherBaetis sp.en_US
dc.subject.otherHydropsyche sp.en_US
dc.subject.otherSimmulium sp.en_US
dc.subject.otherTabantus atratusen_US
dc.subject.otherSericostoma sp.en_US
dc.subject.otherHilsenhoff Indexen_US
dc.titleStudy on Benthic organisms of Ghazal Ozan River in Zanjan Provinceen_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue4en_US
dc.bibliographicCitation.titleIranian Scientific Fisheries Journalen_US
dc.bibliographicCitation.volume21en_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.125-138en_US
dc.subject.asfaBenthosesen_US
dc.subject.asfaLevelsen_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:20Z


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