Corpus ID: 89627595

The dynamics of a Planktothrix agardhii population in a shallow dimictic lake

  title={The dynamics of a Planktothrix agardhii population in a shallow dimictic lake},
  author={R. Dondajewska and K. Kowalczewska-Madura},
Planktothrix agardhii is one of the most common species of cyanobacteria, known to form water blooms and to produce toxins. This paper aims to examine the dynamics of the P. agardhii population in the shallow though dimictic Uzarzewskie Lake and to answer the questions related to microcystin content within the population and its release. P. agardhii was found in all the seasons of the year 2006, and it was the dominant taxa in the phytoplankton of the lake from August, when it outcompeted… Expand
Variation in Phyto- and Zooplankton of Restored Lake Uzarzewskie
Our paper reports the phyto- and zooplankton changes studied in Lake Uzarzewskie in 2010-12 under the influence of a restoration procedure. It is a small (10.6 ha), not deep (up to 7.3 m) butExpand
Phytoplankton composition in the Maltanski Reservoir and the lowest part of the Cybina River
This paper presents the results of the analyses of the phytoplankton community from the Maltański Reservoir and the Cybina River (the infl ow and outfl ow of the Cybina River). In many papers theExpand
The biodegradation of microcystins in temperate freshwater bodies with previous cyanobacterial history.
The hypothesis that microcystin biodegradation is a common phenomenon in central European waters and that it may occur by a mechanism which is different from the one previously reported is confirmed, which implies the necessity to develop a more accurate methodology for screening bacteria with MC biodegrading ability. Expand
The number of green algae increased especially during the spring months, when Oocystis lacustris, Tetraedron minimum, Coelastrum astroideum, Actinastrum hantzshii, Monoraphidium contortum, Koliella spiculiformis and Scenedesmus communis were mainly noted. Expand
Succession of Microbial Community in a Small Water Body within the Alluvial Aquifer of a Large River
Nitrogen is one of the essential elements limiting growth in aquatic environments. Being primarily of anthropogenic origin, it exerts negative impacts on freshwater ecosystems. The present study wasExpand
Cyanobacteria and cyanotoxins in Polish freshwater bodies
It is concluded that Planktothrix, Aphanizomenon, Microcystis and Dolichospermum were dominant in the presence of cyanobacteria and cyanotoxins in fresh water bodies located in 5 provinces in Poland and the general pattern in geographical distribution was typical of other eutrophic waters in Europe. Expand
The influence of restoration measures on phosphorus internal loading from the sediments of a hypereutrophic lake
Sustainable restoration of the lake resulted in a slow but steady decreasing trend in internal phosphorus loading, and the fraction of residual phosphorus (Res-P) has the largest share, and in recent years, this has shown a tendency to decrease. Expand
Water quality and phytoplankton structure changes under the influence of effective microorganisms (EM) and barley straw - Lake restoration case study.
Effective Microorganisms application initiated positive changes in the ecosystem by means of excessive organic matter decomposition and increased diversity of phytoplankton, nevertheless cyanobacteria blooms were still present due to high nutrient content. Expand


Factors controlling the dominance of Planktothrix agardhii and Limnothrix redekei in eutrophic shallow lakes
Lakes in the Scharmutzelsee-region (East-Brandenburg, Germany) were found to be dominated either by Limnothrix redekei or Planktothrix agardhii, and light and nutrient supply are discussed as the key factors for the species composition. Expand
Cyanoprokaryota of shallow lakes of Lubuskie Lakeland (mid-western Poland)
In the summer seasons 2001 - 2004, water samples were collected in 25 shallow lakes in the area of the Lubuskie Lakeland (mid-western Poland) and a total of 73 taxa of Cyanoprokaryota were found, with extremely high biomass in one of them. Expand
Distribution of Hepatotoxic Cyanobacterial Blooms in Belgium and Luxembourg
A survey of the distribution of cyanobacterial blooms in the southern part of Belgium, in Luxembourg as well as in bordering northeastern France was carried out for 4 years (1997, 1999–2001). In theExpand
Cyanobacteria associations in shallow polytrophic lakes: influence of environmental factors
A 2 year field study in two shallow, polytrophic lakes in Brandenburg revealed the importance of environmental factors in controlling the population dynamics of various cyanobacterial species which do not form layers or aggregations. Expand
Food-web manipulation in the Maltański Reservoir
The Maltanski Reservoir was emptied in September 1992, and all fish were harvested, and following refilling in the spring of 1993, fry of eel, pike, and wels were introduced, leading to a strong water bloom dominated by Planktothrix agardhii. Expand
Cyanobacterial dominance in lakes
Underlying mechanisms of cyanobacterial dominance are analyzed and discussed using both original and literature data from various shallow mixed and deep stratifying lakes from temperate and (sub)tropical regions. Expand
Effects of nutrient and light availability on production of bioactive anabaenopeptins and microviridin by the cyanobacterium Planktothrix agardhii
Findings on the production of two anabaenopeptins and a microviridin by Planktothrix agardhii support the idea that different types of bioactive cyanobacterial oligopeptides may share common regulation patterns. Expand
Selection of phytoplankton associations in Lake Balaton, Hungary, in response to eutrophication and restoration measures, with special reference to the cyanoprokaryotes
Restoration of shallow lakes degraded by eutrophication has often been protracted as a consequence of the accumulation and subsequent releases of phosphorus in their sediments (internal load).Expand
Phytoplankton assemblages and steady state in deep and shallow eutrophic lakes — an approach to differentiate the habitat properties of Oscillatoriales
Whether this phenomenon of regular succession in shallow hypertrophic lakes is caused by adaptation to a resilient and an extreme environment or by the pool of species that can live or survive in that environment is discussed. Expand
Effects of light, temperature, nitrate, orthophosphate, and bacteria on growth of and hepatotoxin production by Oscillatoria agardhii strains
  • K. Sivonen
  • Biology, Medicine
  • Applied and environmental microbiology
  • 1990
Two of the three toxic cultures studied produced more toxins in axenic than in nonaxenic cultures and higher concentrations had no additional effect. Expand