Intercalibration of assessment methods for macrophytes in lowland streams: direct comparison and analysis of common metrics

Birk, Sebastian; Korte, Thomas; Hering, Daniel

doi:10.1007/978-1-4020-5493-8_29

Cited by 19 publications

(23 citation statements)

References 13 publications

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“…The proposed typology applies to most river types identified in Europe, including the system developed during the EU intercalibration exercise for the purpose of the Water Framework Directive (i.e., CIS, 2011;Birk et al, 2006Birk et al, , 2013Birk et al, , 2014. The intercalibration exercise Table 1 Table 5 The significance of differences of physical and chemical parameters among macrophyte river types using a SpjotvollStoline a posteriori test (significance: P C 0.05; * P \ 0.05; ** P \ 0.01; *** P \ 0.001) River types Table 1 aimed at introducing consistency and comparability into the classification results of monitoring systems operating in each EU member state for biological quality elements; moreover, uniform water body types were defined in different sub-regions or ecoregions.…”

Section: Consistency Of the Proposed River Typologymentioning

confidence: 99%

Development of comprehensive river typology based on macrophytes in the mountain-lowland gradient of different Central European ecoregions

et al. 2014

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The aim of the study was to identify the vegetation pattern in the different types of watercourses basing on survey in reference conditions in a wide geographical gradient, including mountain, upland and lowland rivers. We tested relationship between composition of macrophytes to environmental variables including: altitude, slope, catchment area, geology of valley, land use, hydromorphological features, water physical and chemical measurements. Analysis based on 109 pristine river sites located throughout major types of rivers in Central Europe. Qualitative and quantitative plant surveys were carried out between 2005 and 2013. Based on TWINSPAN classification and DCA analysis, six macrophyte types were distinguished. The lowland sites were divided into the following three types: humic rivers and two types of siliceous rivers depending on the catchment area, including medium-large and small rivers. The mountain and upland rivers were divided into three geological types: siliceous, calcareous and gravel. We found that the variation of macrophyte communities was determined by several habitat factors (mainly altitude, flow type, riverbed granulometry, conductivity and alkalinity), whereas the spatial factor was rather limited; further, the plant diversity was not reflected accurately by the European ecoregion approach.

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Section: Consistency Of the Proposed River Typologymentioning

confidence: 99%

Development of comprehensive river typology based on macrophytes in the mountain-lowland gradient of different Central European ecoregions

et al. 2014

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“…Comparing classification or status assessment methods from individual member states has been completed for rivers (Birk et al 2006), but it has not yet been carried out on a large scale for lakes, although an initial assessment of individual member state datasets show that there are large differences among resulting status descriptions (Tóth et al 2008, this issue). One of the main problems in performing a Europe-wide assessment of macrophyte responses to pressures is the lack of a Europe-wide homogenous monitoring methodology, although attempts are being made to harmonise the methodology using a common CEN standard or lake habitat survey (CEN 2006).…”

Section: Introductionmentioning

confidence: 97%

“…In the most simplistic sense, certain macrophyte species are present in waters of good status and absent in bad status (e.g. Moss et al 2003;Birk et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Classifying aquatic macrophytes as indicators of eutrophication in European lakes

Penning

Mjelde

Dudley³

et al. 2008

Aquat Ecol

143

115

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Aquatic macrophytes are one of the biological quality elements in the Water Framework Directive (WFD) for which status assessments must be defined. We tested two methods to classify macrophyte species and their response to eutrophication pressure: one based on percentiles of occurrence along a phosphorous gradient and another based on trophic ranking of species using Canonical Correspondence Analyses in the ranking procedure. The methods were tested at Europe-wide, regional and national scale as well as by alkalinity category, using 1,147 lakes from 12 European states. The grouping of species as sensitive, tolerant or indifferent to eutrophication was evaluated for some taxa, such as the sensitive Chara spp. and the large isoetids, by analysing the (nonlinear) response curve along a phosphorous gradient. These thresholds revealed in these response curves can be used to set boundaries among different ecological status classes. In total 48 taxa out of 114 taxa were classified identically regardless of dataset or classification method. These taxa can be considered the most consistent and reliable indicators of sensitivity or tolerance to eutrophication at European scale. Although the general response of well known indicator species seems to hold, there are many species that were evaluated differently according to the database A. Kolada selection and classification methods. This hampers a Europe-wide comparison of classified species lists as used for the status assessment within the WFD implementation process.

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“…Para propósitos prácticos de la evaluación de la calidad del agua, es importante tener en cuenta que las diferencias observadas en las respuestas de las especies justifican la necesidad de estudios regionales (Licursi y Gómez 2003, Potapova et al 2004, BesseLototskaya et al 2011. En varios países de América del Norte y Europa, los ríos son monitoreados en un número significativo de segmentos que pueden exceder los 145 sitios (Rimet et al 2004, Birk et al 2006, Tornés et al 2007, Johnson et al 2009. No obstante el bajo número de sitios incluidos en la muestra del presente trabajo, se han establecido los sitios de referencia de buena calidad ambiental y los más contrastantes en la región que aparecen alterados por las actividades humanas.…”

Section: Discussionunclassified

“…Para el caso de la comunidad de las algas bentónicas y su valor indicador, esta sistematización se ha concretado en protocolos de estudio tales como los de Van Dam et al (1994), Foerster et al (2004), Cambra et al (2005), Birk et al (2006) y Tornés et al (2007. Las comunidades de algas bentónicas son sensibles a los cambios químicos en el agua, son fáciles de obtener y se pueden evaluar cuantitativamente.…”

Section: Introductionunclassified

Estudio Del Valor Indicador De Las Comunidades De Algas Bentónicas: Una Propuesta De Evaluación Y Aplicación en El Río Magdalena, Ciudad De México

Jiménez

Rodríguez

Bojorge-García

et al. 2016

Rev. Int. Contam. Ambie.

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The application and development of environmental laws governing watershed management requires identification of biological indicators, parameters and measures to establish its ecological status, for which the present study aims to characterize the ecological indicator value of stream benthic algae in an urban area of Mexico City. Six sites of the Magdalena river were studied in the most contrasting seasons: drywarm, rainy and dry-cold. At each site the physicochemical parameters of water were recorded and 10 samples were collected: Five with visible algal growths and five with diatoms. The environmental quality of each site was determined by the trophic status and its confirmation with the richness and benthic algal diversity, through a canonical correspondence analysis and the calculation of the indicator value of species (IndVal). According to the trophic status, three groups of sites were recognized. The first group (G1) was assessed as reference of the oligotrophic conditions and presented 11 species with the highest IndVal, protruding: Encyonema silesiacum, Gomphonema parvulum, Navicula cryptocephala, Planothidium lanceolatum, Vaucheria bursata, Placoma regulare and Nostoc parmelioides. A second group (G2) was associated with 15 species considered detectors, which were tolerant to increased nutrients in at least one season, such as Diatoma mesodon and Prasiola mexicana. The third group (G3) included sites with species that had a wide range of tolerance to pollution: Fistulifera saprophila, Nitzschia minuta, Nitzschia palea, Nitzschia recta and Phormidium autumnale. The species IndVal of Magdalena River has established reference sites of good environmental quality and those that are altered by human activities, therefore they are recommended as the first step in a methodological proposal for a long-term biomonitoring through a biological index.

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Intercalibration of assessment methods for macrophytes in lowland streams: direct comparison and analysis of common metrics

Cited by 19 publications

References 13 publications

Development of comprehensive river typology based on macrophytes in the mountain-lowland gradient of different Central European ecoregions

Development of comprehensive river typology based on macrophytes in the mountain-lowland gradient of different Central European ecoregions

Classifying aquatic macrophytes as indicators of eutrophication in European lakes

Estudio Del Valor Indicador De Las Comunidades De Algas Bentónicas: Una Propuesta De Evaluación Y Aplicación en El Río Magdalena, Ciudad De México

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