Water quality in Danube Delta Lakes: An assessment using benthic macroinvertebrates community

An assessment of the ecological status of selected lakes in the Danube Delta Biosphere Reserve was done based on temporal and spatial variation of macroinvertebrate communities during 2012 and 2013. Macroinvertebrate communities and measures of these communities were evaluated and a baseline charact...

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Main Author: IBRAM Orhan
Format: Article
Language:English
Published: CITDD Publishing House 2016-12-01
Series:Scientific Annals of the Danube Delta Institute
Subjects:
Online Access:http://www.ddniscientificannals.ro/scientific-annals/11-volume-21/27-vol21_art04
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author IBRAM Orhan
author_facet IBRAM Orhan
author_sort IBRAM Orhan
collection DOAJ
description An assessment of the ecological status of selected lakes in the Danube Delta Biosphere Reserve was done based on temporal and spatial variation of macroinvertebrate communities during 2012 and 2013. Macroinvertebrate communities and measures of these communities were evaluated and a baseline characterization of assemblages was determined for the analyzed sites. Each year, three sampling campaigns, one for each ice-free season were organized for data collection. Macroinvertebrate samples have been collected in every lake from three different stations with the use of an Ekmann dredge. The highest taxa richness are recorded in Fortuna and Isac lakes in 2013. Total abundance followed a pattern similar to taxa number with Fortuna and Isac lakes having the highest yearly values (maximum number of individuals – 225 - per sample has been recorded in September 2013, in Isac Lake).Using saprobic index as an indicator of ecological status Isac lake was classifies as moderate and other three lakes, Merhei, Furtuna and Rosu as good ecological status. Lack of correlation between diversity indices and the saprobic values suggests that other assessment methods could be more effective and provide better information than saprobic index does at least for Danube Delta.
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spelling doaj.art-d4ca33cf174940cf993f4427f769d2fb2022-12-22T02:12:10ZengCITDD Publishing HouseScientific Annals of the Danube Delta Institute1842-614X2247-99022016-12-0121394210.7427/DDI.21.04 Water quality in Danube Delta Lakes: An assessment using benthic macroinvertebrates communityIBRAM Orhan0Danube Delta National Institute for Research and Development: Babadag Street No. 165, 820112 Tulcea, RomaniaAn assessment of the ecological status of selected lakes in the Danube Delta Biosphere Reserve was done based on temporal and spatial variation of macroinvertebrate communities during 2012 and 2013. Macroinvertebrate communities and measures of these communities were evaluated and a baseline characterization of assemblages was determined for the analyzed sites. Each year, three sampling campaigns, one for each ice-free season were organized for data collection. Macroinvertebrate samples have been collected in every lake from three different stations with the use of an Ekmann dredge. The highest taxa richness are recorded in Fortuna and Isac lakes in 2013. Total abundance followed a pattern similar to taxa number with Fortuna and Isac lakes having the highest yearly values (maximum number of individuals – 225 - per sample has been recorded in September 2013, in Isac Lake).Using saprobic index as an indicator of ecological status Isac lake was classifies as moderate and other three lakes, Merhei, Furtuna and Rosu as good ecological status. Lack of correlation between diversity indices and the saprobic values suggests that other assessment methods could be more effective and provide better information than saprobic index does at least for Danube Delta.http://www.ddniscientificannals.ro/scientific-annals/11-volume-21/27-vol21_art04Water Framework Directiveecological statusbenthic invertebratesDanube Delta
spellingShingle IBRAM Orhan
Water quality in Danube Delta Lakes: An assessment using benthic macroinvertebrates community
Scientific Annals of the Danube Delta Institute
Water Framework Directive
ecological status
benthic invertebrates
Danube Delta
title Water quality in Danube Delta Lakes: An assessment using benthic macroinvertebrates community
title_full Water quality in Danube Delta Lakes: An assessment using benthic macroinvertebrates community
title_fullStr Water quality in Danube Delta Lakes: An assessment using benthic macroinvertebrates community
title_full_unstemmed Water quality in Danube Delta Lakes: An assessment using benthic macroinvertebrates community
title_short Water quality in Danube Delta Lakes: An assessment using benthic macroinvertebrates community
title_sort water quality in danube delta lakes an assessment using benthic macroinvertebrates community
topic Water Framework Directive
ecological status
benthic invertebrates
Danube Delta
url http://www.ddniscientificannals.ro/scientific-annals/11-volume-21/27-vol21_art04
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