Role of periphyton in ecological assessment of lakes

DeNicola, Dean M.; Kelly, Martyn

doi:10.1086/676117

Cited by 55 publications

(30 citation statements)

References 141 publications

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“…Hence, ecological functioning, in this part of the biota at least, has not measurably changed. This interpretation continues the theme outlined by DeNicola and Kelly (2014) of focusing on the role of phytobenthos in delivering ecosystem services rather than simply trying to optimize pressure-response relationships.…”

Section: Model Performancementioning

confidence: 70%

“…DeNicola and Kelly (2014) pointed out that taxonomic metrics, such as the LTDI, have strong relationships with water chemistry but do not necessarily capture all aspects of ecological status and integrity and went on to discuss the problems associated with incorporating measures of diversity, biomass, and productivity into routine assessments. The LTDI is valuable only if used correctly.…”

Section: Definitions Of Ecological Statusmentioning

confidence: 99%

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Assessment of ecological status in UK lakes using benthic diatoms

Bennion

Kelly²,

Juggins

et al. 2014

Freshwater Science

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Section: Model Performancementioning

confidence: 70%

Section: Definitions Of Ecological Statusmentioning

confidence: 99%

Assessment of ecological status in UK lakes using benthic diatoms

Bennion

Kelly²,

Juggins

et al. 2014

Freshwater Science

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“…Corresponding author: danafidlerova@azet.sk diatoms proved to serve as valuable indicators also in standing waters in many European regions, especially with regard to eutrophication (Hofmann, 1994;King et al, 2000;Kitner and Poulíčková, 2003;Blanco et al, 2004;Poulíčková et al, 2004;Schaumburg et al, 2004;Ács et al, 2005;Stenger-Kovács et al, 2007;Jüttner et al, 2010;Novais et al, 2012;Bennion et al, 2014;Cantonati and Lowe, 2014;De Nicola and Kelly, 2014;Kelly et al, 2014a;Poulíčková et al, 2014). Despite their promising bioindicative potential in European lentic ecosystems, only a few countries have produced diatom-based WFD-compliant assessment systems for these habitats (Kelly, 2013) and there are very few studies focusing on the evaluation of ecological potential assessment of reservoirs based on benthic diatoms (Novais et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Relationships between benthic diatom assemblages’ structure and selected environmental parameters in Slovak water reservoirs (Slovakia, Europe)

Fidlerová

Hlúbiková²

2016

Knowl. Manag. Aquat. Ecosyst.

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-The main objective of the present study is to describe the structure of benthic diatom communities in 23 water reservoirs in Slovakia classified as heavily modified water bodies. Environmental variables together with biological data obtained during the routine biomonitoring of water reservoirs in Slovakia were explored and analysed to understand variability of benthic diatom communities and their relationships with environmental variables in order to obtain an integrated knowledge about their relevance as bioindicators for the Water Framework Directive-compliant ecological potential assessment. This study summarizes results from a four-year monitoring programme of water reservoirs surveyed during the period of 2011-2014. The performed survey and statistical analyses revealed the following: (i) two main groups of reservoirs could be distinguished based on the purpose of their main use (multipurpose or drinking water-supply use); (ii) multipurpose and drinking water-supply reservoirs differed in benthic diatom community structure, diatom water quality indices as well as in the principal environmental gradients structuring the diatom communities; (iii) 5 distinct sub-groups of reservoirs could be identified differing in terms of diatom species composition and several environmental parameters; (iv) the most significant environmental variables in explaining differences in diatom species composition in multipurpose reservoirs were mean depth and mean annual flow; in drinking water-supply reservoirs conductivity and water transparency.Key-words: benthic diatom / phytobenthos / water reservoir / Slovakia / Water Framework Directive Résumé -Les relations entre la structure des assemblages de diatomées benthiques et certains paramètres environnementaux dans les réservoirs slovaques (Slovaquie, Europe). L'objectif principal de la présente étude est de décrire la structure des communautés de diatomées benthiques dans 23 réservoirs en Slovaquie classés comme masses d'eau fortement modifiées. Les variables environnementales ainsi que des données biologiques obtenues au cours de la biosurveillance de routine des réservoirs en Slovaquie ont été explorées et analysées afin de comprendre la variabilité des communautés de diatomées benthiques et leurs relations avec les variables environnementales et d'obtenir une connaissance intégrée sur leur pertinence comme bioindicateurs pour la directive cadre sur l'eau -conforme à l'évalua-tion du potentiel écologique. Cette étude résume les résultats d'un programme de suivi de quatre ans des réservoirs au cours de la période 2011-2014. Le suivi effectué et les analyses statistiques ont révélé : (i) deux principaux groupes de réservoirs peuvent être distingués en fonction du but de leur utilisation principale (polyvalente ou d'approvisionnement en eau potable) ; (ii) les réservoirs à usages multiples et d'alimentation en eau potable différaient dans la structure des communautés de diatomées benthiques, aussi bien les indices diatomée de qualité de l'eau, que les principaux gradien...

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“…However, benthic algae are such an essential component of freshwater ecosystem function that they are a major environmental variable commonly applied as indicator organisms for total ecosystem health [46]. For example, the monitoring of benthic algae can help to establish causative effects of stressors, such as WLF, and periphyton-based ecosystem assessment is considered a powerful tool to quantify the ecological status of lakes [47]. Furthermore, research shows that losses of benthic primary production can cascade up to higher food web levels, altering trophic relationships at higher levels of the food chain [23].…”

Section: Implications and Context Of Experimental Resultsmentioning

confidence: 99%

Integrating Economic and Ecological Benchmarking for a Sustainable Development of Hydropower

et al. 2016

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Abstract:Hydropower reservoirs play an increasingly important role for the global electricity supply. Reservoirs are anthropogenically-dominated ecosystems because hydropower operations induce artificial water level fluctuations (WLF) that exceed natural fluctuations in frequency and amplitude. These WLF have detrimental ecological effects, which can be quantified as losses to ecosystem primary production due to lake bottoms that fall dry. To allow for a sustainable development of hydropower, these "ecological costs" of WLF need to be weighed against the "economic benefits" of hydropower that can balance and store intermittent renewable energy. We designed an economic hydropower operation model to derive WLF in large and small reservoirs for three different future energy market scenarios and quantified the according losses in ecosystem primary production in semi-natural outdoor experiments. Our results show that variations in market conditions affect WLF differently in small and large hydropower reservoirs and that increasing price volatility magnified WLF and reduced primary production. Our model allows an assessment of the trade-off between the objectives of preserving environmental resources and economic development, which lies at the core of emerging sustainability issues.

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Role of periphyton in ecological assessment of lakes

Cited by 55 publications

References 141 publications

Assessment of ecological status in UK lakes using benthic diatoms

Assessment of ecological status in UK lakes using benthic diatoms

Relationships between benthic diatom assemblages’ structure and selected environmental parameters in Slovak water reservoirs (Slovakia, Europe)

Integrating Economic and Ecological Benchmarking for a Sustainable Development of Hydropower

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