Changes of the plankton community composition during chemical neutralisation of the Bockwitz pit lake

Rönicke, Helmut; Schultze, Martin; Neumann, Volker; Nitsche, Claus; Tittel, Jörg

doi:10.1016/j.limno.2009.11.005

Cited by 19 publications

(13 citation statements)

References 28 publications

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“…High silicate concentrations of more than 10 mg L −1 are common for acid mining lakes ( Geller and Schultze, 2009 ). As a consequence of uptake by diatoms, the silicate concentration usually decreases over a period of some years after neutralization ( Rönicke et al, 2010 ).…”

Section: Discussionmentioning

confidence: 99%

“…While the food web structure and diversity of ML have been investigated in some detail ( Tittel et al, 1998; Wollmann et al, 2000; Gaedke and Kamjunke, 2006 ), studies describing changes in the plankton community as a consequence of neutralization of ML are rare ( Rönicke et al, 2010 ). This study presents a comparison of the species diversity and the food web structure of the neutralized lake with its neighbouring acidic lake.…”

Section: Introductionmentioning

confidence: 99%

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The most acidified Austrian lake in comparison to a neutralized mining lake

Moser

Weisse

2011

Limnologica

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This study investigated two mining lakes located in the north of Lower Austria. These lakes arose 45 years ago when open cast lignite mining ceased. The lakes are separated by a 7-m wide dam. Due to the oxidation of pyrite, both lakes have been acidified and exhibit iron, sulphate, and heavy metal concentrations several orders of magnitude higher than in circumneutral lakes. The water column of both lakes is divided into two layers by a pronounced chemocline. The smaller mining lake (AML), with pH close to of 2.6, is the most acidic lake in Austria, whereas flooding with stream water and by drainage from the surrounding fields neutralized the adjacent larger pit lake. The goal of our study was to investigate the effect of flooding on its physical, chemical and biological properties, in comparison to the pristine AML. Even relative to other extremely acidic lakes, the flora and fauna in the AML was reduced and composed of only two flagellate, one ciliate, and one rotifer species. The simplified pelagic food web in the mixolimnion consisted of heterotrophic bacteria, the mixotrophic flagellates Chlamydomonas acidophila and Ochromonas sp., the ciliate Oxytricha sp., and the rotifer Cephalodella sp. The latter two are as yet undescribed new species. The heliozoan Actinophrys sp. that may act as top predator occurred only in low abundance. The euglenid Lepocinclis buetschlii formed a stable deep chlorophyll maximum (DCM) at 7 m depth. Highest cell numbers of L. buetschlii in the DCM exceeded 108 L−1. The neutralized mining lake harboured higher plankton diversity similar to that of natural circumneutral lakes. A peak of at least 16 different phytoplankton taxa was observed during summer. The zooplankton consisted of several copepod species, daphnids and other cladocerans, and at least six different rotifer species. Several fish species occurred in the neutralized lake. Although the effect of non-permanent flooding was largely sustainable, interannual fluctuations of the pH affected the plankton community and reduced its species diversity.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The most acidified Austrian lake in comparison to a neutralized mining lake

Moser

Weisse

2011

Limnologica

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“…Acidification, salinity, and pollution with mineral salts are the most frequent determinants of the biological conditions of post-mining waters (Bielańska-Grajner and Gładysz, 2010; Rönicke et al, 2010;Moser and Weisse, 2011;Ferrari et al, 2015;Sienkiewicz and Gąsiorowski, 2016;Pociecha et al, 2017). The physicochemical parameters of the analyzed reservoirs were similar to those of natural water bodies.…”

Section: Discussionmentioning

confidence: 86%

Zooplankton diversity of drainage system reservoirs at an opencast mine

Goździejewska

Skrzypczak

Paturej

et al. 2018

Knowl. Manag. Aquat. Ecosyst.

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The aim of this study was to determine the structure of zooplankton in three artificial water reservoirs, the technological function of which is to pre-treat waters from a drainage system of a brown coal open mine by removing inorganic suspension. The background for the zooplankton qualitative and quantitative analyses was the hydrochemical conditions in the individual reservoirs. The greatest zooplankton abundance (N), number of taxa (n), Shannon’s diversity (H'), and species eveness (J') was noted in reservoir Chabielice (Nmean = 1311 ind. L−1, n = 26, H' = 2.09, J' = 0.64) which was dominated by eurytopic Rotifera species (Keratella cochlearis,Keratella tecta,Keratella valga,Polyarthra longiremis,Filinia longiseta). Their abundance was positively correlated with water pH and nutrient concentrations. Reservoir Kamień was characterized by the highest mean values of total suspension (9.6 mg L−1), chlorophyll a (Chl a) content (10.4 μg L−1), and water temperature (20.0 °C). These factors significantly correlated with crustacean biomass. The thermal-oxygenation conditions, low trophic level, and low productivity of the water (Chl a = 5.4 μg L−1) in reservoir Północny determined the overall low zooplankton abundance (Nmean = 153 ind. L−1). Artificial water bodies of opencast mine drainage systems are biologically unstable, but they do have some characteristics of natural ecosystems, and they do take over their functions. Zooplankton is an indicator of their ecological functionality. Knowledge gained about such reservoirs could contribute to decision-making about strategies for water reclamation and how to manage it.

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“…2 ). More importantly, various other algae that thrive at pH >3 may become superior competitors in the course of neutralization ( Rönicke et al ., 2010 ).…”

Section: Discussionmentioning

confidence: 99%

Combined stress effect of pH and temperature narrows the niche width of flagellates in acid mining lakes

Moser

Weisse

2011

Journal of Plankton Research

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Strains of the green alga Chlamydomonas acidophila and two chrysomonads, Ochromonas spp., isolated from each of two similar acid mining lakes (AMLs) with extremely low pH (∼2.6) were investigated to consider a possible synergistic stress effect of low pH and unfavourable temperature. We measured flagellate growth rates over a combination of four pH (2.5, 3.5, 5.0 and 7.0) and three temperatures (10, 17.5 and 25°C) in the laboratory. Our hypothesis was that, under highly acidic conditions (pH <3), an obligate acidophil species (C. acidophila) would be less sensitive to the combined stress of pH and temperature than acidotolerant species (Ochromonas spp.). We expected that the difference of the fundamental vs. realized pH niche would be greater in the latter. Another chrysomonad, Poterioochromonas malhamensis strain DS, served as a reference for a closely related neutrophil species. Surprisingly, C. acidophila did not survive temperatures >27°C. The lowest temperature tested reduced growth rates of all three chrysomonad strains significantly. Since all chrysomonads were tolerant to high temperature, growth rate of one Ochromonas spp. strain was measured exemplarily at 35°C. Only at this high temperature was the realized pH niche significantly narrowed. We also recorded significant intraspecific differences within the C. acidophila strains from the two AML, illustrating that the niche width of a species is broader than that of individual clones.

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Changes of the plankton community composition during chemical neutralisation of the Bockwitz pit lake

Cited by 19 publications

References 28 publications

The most acidified Austrian lake in comparison to a neutralized mining lake

The most acidified Austrian lake in comparison to a neutralized mining lake

Zooplankton diversity of drainage system reservoirs at an opencast mine

Combined stress effect of pH and temperature narrows the niche width of flagellates in acid mining lakes

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