Assessing the trophic level of a mediterranean stream (Nif stream, İzmir) using benthic macro-invertebrates and environmental variables

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dc.contributor.authorOzbek, Murat
dc.contributor.authorTasdemir, Ayse
dc.contributor.authorCil, Eylem Aydemir
dc.contributor.authorSomek, Hasim
dc.contributor.authorYildiz, Seray
dc.date.accessioned2025-03-23T19:17:26Z
dc.date.available2025-03-23T19:17:26Z
dc.date.issued2019
dc.departmentSinop Üniversitesi
dc.description.abstractThe study was conducted in Nif Stream (İzmir) and the aims of the study are (a) to determine the benthic macro-invertebrate composition of the stream, (b) to determine environmental features of the stream, (c) to investigate the relations between the determined species and the environmental variables and (d) to assess the trophic level of the stream which was under the pressure of industry, agriculture and settlement. Samplings of macrobenthic invertebrates were performed seasonally at eight stations between October 2013 and September 2014 in addition to measuring environmental variables of the localities. 11571 specimens were investigated and totally 77 taxa were determined. Chironomidae and Oligochaeta were the higher groups in terms of species richness with 25 and 17 species, respectively. Multivariate analyses indicate that pH, Ca2+and NO3-N were the most effective variables and explained 48.6% of the variance in the distribution and abundance of benthic macroinvertebrates in Nif Stream. Along the measured physico-chemical characteristics and scores of biological indices, the upper branches of the stream have good quality water while the middle and lower parts are heavily polluted. © 2019, Central Fisheries Research Inst. All rights reserved.
dc.description.sponsorshipE.U. Scientific Research Council
dc.description.sponsorshipEUSRC, (2013/SÜF/24)
dc.identifier.doi10.4194/1303-2712-v19_03_01
dc.identifier.endpage190
dc.identifier.issn1303-2712
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85054384352
dc.identifier.scopusqualityQ2
dc.identifier.startpage179
dc.identifier.urihttps://doi.org/10.4194/1303-2712-v19_03_01
dc.identifier.urihttps://hdl.handle.net/11486/4352
dc.identifier.volume19
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherCentral Fisheries Research Inst
dc.relation.ispartofTurkish Journal of Fisheries and Aquatic Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20250323
dc.subjectAssessment
dc.subjectMacro-invertebrates
dc.subjectNif Stream
dc.subjectTurkey
dc.subjectWater quality
dc.titleAssessing the trophic level of a mediterranean stream (Nif stream, İzmir) using benthic macro-invertebrates and environmental variables
dc.typeArticle

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