Effects of water quality changes on the Ostracoda (Crustacea) species diversity and seasonal occurrence patterns in Lake Egirdir (Isparta, Turkey)

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dc.authorid0000-0003-4712-5612en_US
dc.authorid0000-0002-2108-1853en_US
dc.authorid0000-0002-5525-170Xen_US
dc.contributor.authorKülköylüoğlu, Okan
dc.contributor.authorYağcı, Abdulkadir
dc.contributor.authorErbatur, İsmail
dc.contributor.authorYağcı, Meral Apaydın
dc.contributor.authorBulut, Cafer
dc.contributor.authorÇınar, Şakir
dc.date.accessioned2024-02-08T08:55:58Z
dc.date.available2024-02-08T08:55:58Z
dc.date.issued2023en_US
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Biyoloji Bölümüen_US
dc.descriptionWe would like to thank Drs. James Reddell (Texas Memorial Museum) for his comments and suggestions on the earlier version of the manuscript and Alaettin Tuncer (Hacettepe University) for the information about fossil distribution of the species in the lake. Also, Dr. Vedat Yegen is kindly acknowledged for his observations about the fish in the lake. Enes Dalgakiran, Filiz Batmaz, and Cagatay Capraz are also thanked for their help during sorting the species from the sediment. This study is part of a long-term project supported by the Ministry of Agriculture and Forestry, General Directorate of Agricultural Research and Policy (TAGEM/HAYSUED/2016-A11/P-02/2) of Turkey. Also, we thank the members of the Fisheries Research Institute in Egirdir for their help during the study.en_US
dc.description.abstractChanges in water qualities of the natural aquatic bodies cause habitat and species diversity lost. To understand effects of seasonal water quality changes on the ostracod species diversity and occurrences in Lake Egirdir (Isparta, Turkey), a total of 23 ostracod taxa (10 live species, 13 taxa) were collected from ten stations in the lake during three years of seasonal samplings from 2016 to 2018. Six taxa (Candona candida, C. cf. weltneri, Fabaeformiscandona breuili, Heterocypris incongruens, Ilyocypris decipiens, Limnocythere inopinata) are new reports for the lake. There was no significant difference between the numbers of species found from littoral and pelagic zones. The number of ostracods were higher (4 live, 14 taxa) in winter seasons than the spring (5 live, 10 taxa), summer (4 live, 9 taxa) and fall (8 live, 5 taxa) seasons. Ostracod Watch Model illustrated that Physocypria kraepelini, Neglecandona neglecta and Darwinula stevensoni showed similar seasonal occurrences in almost all seasons during the study. Of these, P. kraepelini was the most abundant species while the others were relatively rare and/or very scarce in their occurrence and abundance values. The mean value of the dissolved oxygen was significantly different between pelagic and littoral zones (p < 0.05). The CCA diagram displayed 84.4% of the correlation between eight species and five ecological variables (water temperature, ammonium, pH, dissolved oxygen, depth). Two species (P. kraepelini and F. breuili) and D. stevensoni showed significantly negative correlation with NH4 and pH, respectively. Species with similar optimum values seemed to have similar ecological and/or habitat preferences along with similar seasonal occurrence patterns. Results point to a reverse relationship between ecological tolerance and optimum estimates of the species. Thus, ostracods with a narrow tolerance range can be considered good indicator species for the water quality estimates. Accordingly, our measurements exhibited that Lake Egirdir is mainly dominated by NO3-N and NH4-N, suggesting a critical reduction in water quality values. Compared with the fossil ostracods, finding six live of 12 fossil species during the present study provides supportive evidence that aquatic conditions of the lake have been declining since the Holocene age. Indeed, dominance of cosmoecious species and absence of several rare species can also be other supportive evidence of the lake water quality decline.en_US
dc.description.sponsorshipMinistry of Agriculture and Forestry, General Directorate of Agricultural Research and Policy of Turkey; [TAGEM/HAYSUED/2016-A11/P-02/2]en_US
dc.identifier.citationKülköylüoğlu, O., Yağcı, A., Erbatur, İ., Yağcı, M. A., Bulut, C., & Çınar, Ş. (2023). Effects of water quality changes on the Ostracoda (Crustacea) species diversity and seasonal occurrence patterns in Lake Eğirdir (Isparta, Turkey). Biologia, 78(3), 755-769.en_US
dc.identifier.doi10.1007/s11756-022-01267-5
dc.identifier.endpage769en_US
dc.identifier.issn0006-3088
dc.identifier.issn1336-9563
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85143693053en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage755en_US
dc.identifier.urihttp://dx.doi.org/10.1007/s11756-022-01267-5
dc.identifier.urihttps://hdl.handle.net/20.500.12491/11995
dc.identifier.volume78en_US
dc.identifier.wosWOS:000895656900003en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorKülköylüoğlu, Okan
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofBiologiaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAbundanceen_US
dc.subjectAutoecologyen_US
dc.subjectCosmoeciousen_US
dc.subjectDominancyen_US
dc.subjectOstracod Watch Modelen_US
dc.subjectToleranceen_US
dc.subjectOptimum Estimatesen_US
dc.titleEffects of water quality changes on the Ostracoda (Crustacea) species diversity and seasonal occurrence patterns in Lake Egirdir (Isparta, Turkey)en_US
dc.typeArticleen_US

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