Epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers

The main aim of this study was to investigate the application of benthic diatoms and the efficiency of diatom indices in water ecological assessment of rivers in Serbia, as well as the influence of trout farms on rivers water quality. Research was conducted in one year period along the Crnica and Ra...

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Autores principales:	Olga S. Jakovljević, Slađana S. Popović, Ivana M. Živić, Katarina Z. Stojanović, Danijela P. Vidaković, Zorana Z. Naunovic, Jelena Ž. Krizmanić
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Diatom assemblages Fish farm Environmental variables Rivers bioassessment Water Framework Directive Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/2aac635b4b384865b1be42239fe0de07
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spelling	oai:doaj.org-article:2aac635b4b384865b1be42239fe0de072021-12-01T04:54:26ZEpilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers1470-160X10.1016/j.ecolind.2021.107847https://doaj.org/article/2aac635b4b384865b1be42239fe0de072021-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21005124https://doaj.org/toc/1470-160XThe main aim of this study was to investigate the application of benthic diatoms and the efficiency of diatom indices in water ecological assessment of rivers in Serbia, as well as the influence of trout farms on rivers water quality. Research was conducted in one year period along the Crnica and Radovanska rivers (Eastern Serbia), in 11 sampling sites (taking into account the position of trout fish farms that are built on both rivers). Results showed that fish farms affect the physical and chemical parameters, as well as diversity of the epilithic diatom assemblage along the rivers. Canonical correspondence analysis (CCA) indicated that among tested physical and chemical parameters, conductivity “EC”, water hardness “WH”, sulfates “SO42-”, ionized ammonia fraction “NH4+”, nitrates “NO3–“, “pH”, mud, stone and depth were the most important variables affecting the distribution of diatom species. A total of 206 epilithic diatom taxa were recorded in the Radovanska and 170 in the Crnica River. Based on diatom indices, trout fish farms have no significant negative impact on the water quality of the investigated rivers (indices are not enough sensitive). Redundancy analysis (RDA) showed a high degree of correlation between the majority of indices which mostly indicated to good water quality of studied rivers. TID and TDI were the only two indices indicating moderate and poor water quality of both rivers. Water quality based on the TIDRS, the first proposed diatom index for Serbia was differ in two classes in most sites compairing with TID.Olga S. JakovljevićSlađana S. PopovićIvana M. ŽivićKatarina Z. StojanovićDanijela P. VidakovićZorana Z. NaunovicJelena Ž. KrizmanićElsevierarticleDiatom assemblagesFish farmEnvironmental variablesRivers bioassessmentWater Framework DirectiveEcologyQH540-549.5ENEcological Indicators, Vol 128, Iss , Pp 107847- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Diatom assemblages Fish farm Environmental variables Rivers bioassessment Water Framework Directive Ecology QH540-549.5
spellingShingle	Diatom assemblages Fish farm Environmental variables Rivers bioassessment Water Framework Directive Ecology QH540-549.5 Olga S. Jakovljević Slađana S. Popović Ivana M. Živić Katarina Z. Stojanović Danijela P. Vidaković Zorana Z. Naunovic Jelena Ž. Krizmanić Epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers
description	The main aim of this study was to investigate the application of benthic diatoms and the efficiency of diatom indices in water ecological assessment of rivers in Serbia, as well as the influence of trout farms on rivers water quality. Research was conducted in one year period along the Crnica and Radovanska rivers (Eastern Serbia), in 11 sampling sites (taking into account the position of trout fish farms that are built on both rivers). Results showed that fish farms affect the physical and chemical parameters, as well as diversity of the epilithic diatom assemblage along the rivers. Canonical correspondence analysis (CCA) indicated that among tested physical and chemical parameters, conductivity “EC”, water hardness “WH”, sulfates “SO42-”, ionized ammonia fraction “NH4+”, nitrates “NO3–“, “pH”, mud, stone and depth were the most important variables affecting the distribution of diatom species. A total of 206 epilithic diatom taxa were recorded in the Radovanska and 170 in the Crnica River. Based on diatom indices, trout fish farms have no significant negative impact on the water quality of the investigated rivers (indices are not enough sensitive). Redundancy analysis (RDA) showed a high degree of correlation between the majority of indices which mostly indicated to good water quality of studied rivers. TID and TDI were the only two indices indicating moderate and poor water quality of both rivers. Water quality based on the TIDRS, the first proposed diatom index for Serbia was differ in two classes in most sites compairing with TID.
format	article
author	Olga S. Jakovljević Slađana S. Popović Ivana M. Živić Katarina Z. Stojanović Danijela P. Vidaković Zorana Z. Naunovic Jelena Ž. Krizmanić
author_facet	Olga S. Jakovljević Slađana S. Popović Ivana M. Živić Katarina Z. Stojanović Danijela P. Vidaković Zorana Z. Naunovic Jelena Ž. Krizmanić
author_sort	Olga S. Jakovljević
title	Epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers
title_short	Epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers
title_full	Epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers
title_fullStr	Epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers
title_full_unstemmed	Epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers
title_sort	epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/2aac635b4b384865b1be42239fe0de07
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Epilithic diatoms in environmental bioindication and trout farm’s effects on ecological quality assessment of rivers

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