Influence of re-flooding on phytoplankton assemblages in a temperate wetland following prolonged drought

Avigliano, Luciana; Vinocur, Alicia; Chaparro, Griselda; Tell, Guillermo; Allende, Luz

doi:10.4081/jlimnol.2014.838

Cited by 14 publications

(8 citation statements)

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“…In hand with what was observed for transparency and nutrients, Lake Lugano's phytoplankton chlorophyll a concentrations were, in general, typical of eutrophic systems and exceeded 100 mg L À1 , evidencing its hypertrophic condition. The encountered values are within the ranges reported for other urban shallow lakes of differing latitudes (Fabre et al, 2010;Segura et al, 2013;Waajen et al, 2014;Ara ujo et al, 2016) and water bodies from Buenos Aires City (Avigliano et al, 2014;Rodríguez-Flores, 2017). The sole exception to these eutrophic/hypertrophic values was recorded during the cold season 2016, associated with the collapse of the P. agardhii bloom evidenced in the decrease in MFG 5a/MBFG III densities.…”

Section: Discussionsupporting

confidence: 84%

“…Even though the available information for them is relatively scarce if compared with that for pristine water bodies, different aspects of the biotic components of urban aquatic systems have lately achieved an increased interest from ecologists. In particular, phytoplankton-focused studies have flourished (e.g., Scasso et al, 2001;Xiangcan, 2003;Hirose et al, 2003;Meerhoff et al, 2003;Fazio and O'farrell, 2005;Lv et al, 2011;Segura et al, 2013;Avigliano et al, 2014;Waajen et al, 2014; Jovanović et al, 2017). Pickett and Cadenasso (2006) stressed out that the flora and fauna of the metropolitan areas are mostly dominated by generalist species (e.g., early successional trees and herbs, and species that can tolerate disturbance).…”

Section: Introductionmentioning

confidence: 99%

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Phytoplankton functional group classifications as a tool for biomonitoring shallow lakes: a case study

Allende

Fontanarrosa

Murno

et al. 2019

Knowl. Manag. Aquat. Ecosyst.

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We assessed changes in phytoplankton community structure in relation to environmental variables in an urban eutrophic shallow lake (Lake Lugano, Argentina) throughout one year following two classification systems according to the morpho-functional groups (MFG) approach and morphologically based functional groups (MBFG). We aimed to compare the different approaches and find a simple tool to biomonitor urban freshwaters regarding their phytoplankton structure. Values of transparency, nutrients and chlorophyll a concentrations confirmed the eutrophic/hypertrophic conditions of the lake. The potentially toxic Cyanobacteria Planktothrix agardhii representing MFG 5a and MBFG III was generally dominant and reached bloom densities (>62,000 ind ml−1). The multivariate analyses performed showed similar and overlapping results considering both approaches. Nutrients and transparency were the main environmental variables explaining the variance encountered. We conclude that MBFG classification was an adequate, easy-to-handle method for monitoring Lake Lugano. The functional approaches applied enabled the follow-up of potentially toxic Cyanobacteria in Lake Lugano. Further studies should include the estimation of cyanobacteria-derived toxin concentrations in water. We consider that the applicability of the MBFG approach deserves to be further explored as a promising tool for biomonitoring different types of urban water bodies.

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Phytoplankton functional group classifications as a tool for biomonitoring shallow lakes: a case study

Allende

Fontanarrosa

Murno

et al. 2019

Knowl. Manag. Aquat. Ecosyst.

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“…The finest between‐habitats scale comprised very distinct habitats, including open water areas and vegetated patches with distinct macrophyte life forms that were expected to provide differential niches regarding environmental conditions, refuge area and food availability (Ferreiro, Giorgi, & Feijoo, ; Thomaz & Ribeiro Da Cunha, ; Warfe & Barmuta, ). A shift from primarily epiphytic and littoral species in macrophyte stands to pelagic phyto‐ and zooplankton taxa in open waters was reported in previous studies (Avigliano, Vinocur, Chaparro, Tell, & Allende, ; Chaparro, Kandus, & O'Farrell, ; Duggan, Green, Thompson, & Shiel, ; José de Paggi et al., ). At the same time, these habitats are well connected and comprise one waterbody (section).…”

Section: Discussionsupporting

confidence: 72%

Plankton metacommunities in floodplain wetlands under contrasting hydrological conditions

et al. 2018

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Species diversity is affected by processes operating at multiple spatial scales, although the most relevant scales that contribute to compositional variation and the temporal shifts of the involved mechanisms remain poorly explored. We studied spatial patterns of phytoplankton, rotifers and microcrustacean diversity across scales in a river floodplain system of the Danube in Austria under contrasting hydrological conditions (post‐flood versus low water level).The species turnover between water sections (β2) and between wetlands (β3) was the major components of regional diversity for all studied groups, with species turnover between habitats (β1) as a minor contributor. β1 diversity and β2 diversity were lower than expected by chance in most cases, suggesting that communities are more homogeneous than expected at these scales. β3 diversity was higher than expected by chance in many cases, indicating more distinct communities at the wetland level. Patterns were highly similar under different hydrological conditions, indicating no major immediate effect of flood events.Local environmental and spatial factors were similarly important in structuring phytoplankton, rotifer and microcrustacean communities in both hydrological conditions. Relevant environmental factors were spatially structured in post‐flood conditions especially between sections, suggesting flood‐driven homogenisation within the wetlands. Under low water level, spatial structuring of environment decreased and pure environmental factors gained relevance for phytoplankton and rotifers.Our results suggest that although β2 diversity between water sections is a major component of regional diversity, long‐term spatial processes responding to connectivity across the wetland structure phytoplankton, rotifer and microcrustacean communities. Aquatic sections within the limited spatial extent of the remaining floodplain areas appear more homogeneous than expected probably due to flood recurrence over the years.These results highlight that adequate planning of restoration and conservation strategies of floodplain wetlands should consider environmental heterogeneity together with long‐term spatial processes.

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“…nutrient supply to aquatic ecosystems, enhancement of fish production, creation of wildlife habitat, rejuvenation of soil fertility, in addition to the productive effects on plant growth and physiological rhythms (Poff, 2002;Liu et al, 2014). Flooding affects phytoplankton abundance and community composition, whereas fluctuations in water levels cause quick growth of certain algal species (Avigliano et al, 2014). Nevertheless, there are very few studies regarding the effect of flood stress on aquatic ecosystems (Lake, 2011).…”

Section: Introductionmentioning

confidence: 99%

Phytoplankton Composition and its Biochemical Contents in a Subtropical Reservoir (Lake Nasser, Egypt) during Flood Season.

Zaher¹,

El-Hady²,

Khalifa³

2021

Egypt. J. of Aquatic Biolo. and Fish.

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Influence of re-flooding on phytoplankton assemblages in a temperate wetland following prolonged drought

Abstract: Wetlands can experience drying and flooding cycles which influence the dynamics of the phytoplankton assemblages.

Cited by 14 publications

References 61 publications

Phytoplankton functional group classifications as a tool for biomonitoring shallow lakes: a case study

Phytoplankton functional group classifications as a tool for biomonitoring shallow lakes: a case study

Plankton metacommunities in floodplain wetlands under contrasting hydrological conditions

Phytoplankton Composition and its Biochemical Contents in a Subtropical Reservoir (Lake Nasser, Egypt) during Flood Season.

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