Macrophyte assessment in European lakes: Diverse approaches but convergent views of ‘good’ ecological status

Poikāne, Sandra; Portielje, R.; Denys, Luc; Elferts, Didzis; Kelly, Martyn; Kolada, Agnieszka; Mäemets, Helle; Phillips, Geoff; Søndergaard, Martin; Willby, Nigel; Berg, M.S. van den

doi:10.1016/j.ecolind.2018.06.056

Cited by 64 publications

(47 citation statements)

References 85 publications

(179 reference statements)

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“…Only hydrophytic and heterophytic vascular plants (bryophytes, pteridophytes and phanerogams) were taken into account for sampling (Poikane et al 2018). Linear transects were drawn at several sampling points in each lake, which have their starting point on the shore (0 me- elements for the growth of aquatic plants are nutrients.…”

Section: Aquatic Plants Analysismentioning

confidence: 99%

“…Several investigations have shown the relationship between abiotic parameters and the presence of macrophytes because they are sensitive to fluctu-ations in the ecosystem giving them an essential value as bio-indicators (Reiss and Brown 2005, Vásquez et al 2012, Pinilla 2016). However, in order to apply these indices, the specific determination of the different taxa and the reaction patterns of the species to the concentration of nutrients are necessary as determinant elements of their presence (Suárez et al 2005, Dodkins et al 2012, Poikane et al 2018.…”

Section: Resumen Introductionmentioning

confidence: 99%

“…This in-dex is based on relating the composition and structure of aquatic plant species in order to their spatial distribution and habitat preference according to the concentration of nitrogen and phosphorus. Some studies show a high correlation between the concentration of nutrients and the establishment of communities of aquatic plants (Poikane et al 2018, Stefanidis et al 2019, an aspect that motivated the construction of this index. The present analysis pursues the objective of adapting the IVAM, to the hydro-biological conditions of Ecuador considering the geological and relief variability influenced by the presence of the Andes Mountain Range.…”

Section: Resumen Introductionmentioning

confidence: 99%

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Trophic status index of lentic systems from the diversity of aquatic plants from continental Ecuador (IMAE)

et al. 2020

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Aquatic plants are a priority biological group to study due to their high representativeness in ecosystem services and because they also indicate the state of conservation of lake systems. The goal of the study is to develop an Index of Macrophytes from continental Ecuador (IMAE), which can also be applied in the Andean region as a bioindicator, thus assessing the ecological health of the continental lakes and lagoons from 12 to 4000 m, evaluating the structure and floristic composition of aquatic plants and identifying the habitat preferences of the species according to the concentration of nutrients (nitrites, phosphates and ammonium), as determining elements of their presence. 104 species of aquatic plants were found. The tolerance and indicator values have been calculated for each species meanwhile seven levels of coverage were established. Last, four classes of trophic status or water quality were defined to asses lentic systems. The present study will significantly strengthen the environmental control tools for Ecuador.

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Section: Aquatic Plants Analysismentioning

confidence: 99%

Section: Resumen Introductionmentioning

confidence: 99%

Section: Resumen Introductionmentioning

confidence: 99%

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Trophic status index of lentic systems from the diversity of aquatic plants from continental Ecuador (IMAE)

et al. 2020

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“…More importantly, species-rich aquatic plant communities are strongly associated with a clear-water state, particularly in shallow lakes where macrophytes can colonize a large share of the lake bottom [2,3]. Not surprisingly, aquatic macrophytes are used in monitoring the ecological status of surface waters throughout Europe [4][5][6][7]. Lately, several studies have developed ecological assessment systems based on compositional characteristics of aquatic plant communities, since certain species seem to correlate directly with environmental gradients and capture changes of trophic status [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Linkages between Macrophyte Functional Traits and Water Quality: Insights from a Study in Freshwater Lakes of Greece

Stefanidis

Papastergiadou

2019

Water

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Freshwater ecologists have shown increased interest in assessing biotic responses to environmental change using functional community characteristics. With this article, we investigate the potential of using functional traits of the aquatic plants to assess eutrophication in freshwater lakes. To this end we collected macrophyte and physicochemical data from thirteen lakes in Greece and we applied a trait-based analysis to first identify discrete groups of macrophytes that share common functional traits and then to assess preliminary responses of these groups to water quality gradients. We allocated 11 traits that cover mostly growth form and morphological characteristics to a total of 33 macrophyte species. RLQ and fourth corner analysis were employed to explore potential relationships between species, trait composition and environmental gradients. In addition, a hierarchical cluster analysis was conducted to discriminate groups of plants that share common trait characteristics and then the position of the groups along the environmental gradients was assessed. The results showed total phosphorus, chlorophyll-a, conductivity, pH and Secchi disk depth as main drivers of the environmental gradients. Hierarchical cluster analysis showed a clear separation of macrophyte assemblages with discrete functional characteristics that appeared to associate with different environmental drivers. Thus, rooted submerged plants were related with higher Secchi disk depth, conductivity and alkalinity whereas rooted floating-leaved plants showed a preference for enriched waters with phosphorus and nitrogen. In addition, free-floating plants were related positively with nitrogen and increased pH. Although we did not identify specific trait patterns with environmental drivers, our findings indicate a differentiation of macrophytes based on their functional characteristics along water quality gradients. Overall, the presented results are encouraging for conducting future monitoring studies in lakes focused on the functional plant trait composition, as expanding the current approach to additional lakes and using quantifiable functional characteristics will provide more insight about the potential of trait-based approaches as ecological assessment systems.

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“…Eutrophication is a process that causes water deterioration in lentic environments (Lobato et al, 2015) and also affects the spatial distribution of aquatic macrophytes (Madgwick et al, 2011;Søndergaard et al, 2010). These water vegetation contributes to primary productivity, sediment accumulation, provision of food and complex habitat for aquatic and semi-aquatic biota (Poikane et al, 2018). Furthermore, macrophytes act as integrators of environmental conditions to which they are exposed and thus can be used as long-term indicators for waterquality monitoring (Pall and Moser, 2009;Melzer, 1999).…”

Section: Introductionmentioning

confidence: 99%

Analysis of cloud condition on Sentinel-2 MSI and Landsat-8 OLI images of a public supply lake in Belém-Pará-Brazil

2019

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The eutrophication process leads to reduced water quality and economic losses worldwide. Furthermore, it is possible to apply remote sensing techniques for monitoring of aquatic environments. In this paper, we analysed the combined use of Sentinel-2 Multispectral Instrument and Landsat-8 Operational Land Imager data to monitor a eutrophic aquatic environment under adverse cloudy conditions, from July 2016 to July 2018. Data pre-selection was performed, and then the images were acquired for further investigation. After that, we created a key to the interpretation of cloud conditions for the study area and grouped each of 125 scenes in a Principal Component Analysis (PCA). The PCA grouped months with similarities in cloud conditions, highlighting their patterns in terms of the rainy and dry seasons for the study area. Another interesting result was that, even under the inherent adverse cloud regime of the Amazon, the combined use of both free satellite imagery data could be useful for further analyses, such as measuring of chlorophyll a, coloured dissolved organic matters, total suspended solids and turbidity. However, we highlight that, firstly, studies must be made to validate the data in situ, so that monitoring programs can be built through remote sensing applications.

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Macrophyte assessment in European lakes: Diverse approaches but convergent views of ‘good’ ecological status

Abstract: Graphical abstract

Cited by 64 publications

References 85 publications

Trophic status index of lentic systems from the diversity of aquatic plants from continental Ecuador (IMAE)

Trophic status index of lentic systems from the diversity of aquatic plants from continental Ecuador (IMAE)

Linkages between Macrophyte Functional Traits and Water Quality: Insights from a Study in Freshwater Lakes of Greece

Analysis of cloud condition on Sentinel-2 MSI and Landsat-8 OLI images of a public supply lake in Belém-Pará-Brazil

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