Trophic state and limiting nutrient evaluations using trophic state/level index methods: a case study of Borcka Dam Lake

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dc.authorid0000-0002-1873-6038en_US
dc.contributor.authorBilgin, Ayla
dc.date.accessioned2020-12-24T11:32:40Z
dc.date.available2020-12-24T11:32:40Z
dc.date.issued2020
dc.departmentAÇÜ, Mühendislik Fakültesien_US
dc.description.abstractThe relationships between nutrients and the trophic state of Borcka dam reservoir in the Coruh River Basin, which is located in the Eastern Black Sea region of Turkey, were evaluated using the trophic state index (TSI), trophic level index (TLI), and statistical analysis. The samples data were analyzed for chlorophyll-a (Chl-a), total phosphorus (TP), total nitrogen (TN), and secchi disk (SD). In the evaluation, according to the TSI, TLI and Turkish legislation, the reservoir is assessed as mesotrophic in terms of TP, TN data of the water quality. The measurement results of these parameters are higher at the depth points and lower on the surface. The Chl-a parameter is evaluated mesotrophic with 2013 data at the depth, and oligotrophic with 2016 data. The result of TSI (Chl-a) < TSI (SD), TSI (Chl-a) < TSI (TP), and TSI (TN) indicate non-algal turbidity. At the same time, this was verified by calculating the non-algal turbidity coefficient (Kna). It is observed that there is a low correlation between Chl-a and Kna, however a low correlation with TN, and a high correlation with TP. Non-algal particles in the dam lake may occur due to surface runoff and soil erosion from the agricultural area and human settlements. Regression analysis was conducted to determine the relationship between nutrients and Chl-a. The relationship of Chl-a concentration with TN, TP, and TN/TP concentrations is weak. This supports that there are inorganic suspended solids (non-volatile suspended solids) with high underwater light availability.
dc.identifier.citationBilgin, A. (2020). Trophic state and limiting nutrient evaluations using trophic state/level index methods: a case study of Borçka Dam Lake. Environmental Monitoring and Assessment, 192(12), 1-19.en_US
dc.identifier.doi10.1007/s10661-020-08741-0
dc.identifier.endpage19en_US
dc.identifier.issue12en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage1en_US
dc.identifier.urihttps://hdl.handle.net/11494/2499
dc.identifier.volume192en_US
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorBilgin, Ayla
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofEnvironmental Monitoring and Assessment
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBorçka Dam Lakeen_US
dc.subjectEutrophicationen_US
dc.subjectNutrientsen_US
dc.subjectTrophic state indexen_US
dc.subjectTrophic level indexen_US
dc.subjectWater qualityen_US
dc.titleTrophic state and limiting nutrient evaluations using trophic state/level index methods: a case study of Borcka Dam Lakeen_US
dc.typeArticle

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