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Winter versus summer blooming of phytoplankton in a shallow lake: effect of hypertrophic conditions
TLDR
The obtained results revealed that in the hypertrophic lake the very high nutrient concentrations (especially NH4-N and PO4-P), found both in winter and summer, were responsible for year-long mass development of phytoplankton.
Cyanobacteria and cyanotoxins in Polish freshwater bodies
TLDR
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.
Epiphytic algae on Stratiotes aloides L., Potamogeton lucens L., Ceratophyllum demersum L. and Chara spp. in a macrophyte-dominated lake
Abstract Epiphytic algae occurring on submerged macrophytes were investigated as part of a study on the ecological status of a shallow macrophyte-dominated lake, Lake Skomielno, which has been used
Simultaneous accumulation of anatoxin-a and microcystins in three fish species indigenous to lakes affected by cyanobacterial blooms
TLDR
This is the first report on ANTX accumulation in the common fish, indigenous to European freshwaters during perennial cyanobacterial blooms, and suggests the probability of its transfer in a food chain.
Mass Development of Diazotrophic Cyanobacteria (Nostocales) and Production of Neurotoxic Anatoxin-a in a Planktothrix (Oscillatoriales) Dominated Temperate Lake
TLDR
The relatively short-term mass development of neurotoxic Nostocales is an additional threat to shallow, highly eutrophic water bodies continuously affected by Oscillatoriales blooms and may be controlled mainly by the DIN/DIP ratio.
The biodegradation of microcystins in temperate freshwater bodies with previous cyanobacterial history.
TLDR
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.
Accumulation and effects of cyanobacterial microcystins and anatoxin-a on benthic larvae of Chironomus spp. (Diptera: Chironomidae)
TLDR
The survival of both the lake and riverine Chironomus larvae did not decrease when exposed to environmentally relevant concentrations of cyanotoxins, and the larvae were also highly resistant to higher amounts of extracellular toxins.
Effects of secondary metabolites produced by different cyanobacterial populations on the freshwater zooplankters Brachionus calyciflorus and Daphnia pulex
TLDR
It strongly suggests that non-ribosomal oligopeptides, other than MCs, had essential contribution to the observed toxicity to invertebrates and their effects on particular species or populations can vary depending on the secondary metabolite profiles of cyanobacteria.
Environmental factors driving the occurrence of the invasive cyanobacterium Sphaerospermopsis aphanizomenoides (Nostocales) in temperate lakes.
TLDR
The results indicate that eutrophication may be the primary factor enabling the increasing occurrence of S. aphanizomenoides in temperate environments, and suggest that this process may stimulate expansion of cyanobacterial species towards high latitudes.
Temperature Effects Explain Continental Scale Distribution of Cyanobacterial Toxins
TLDR
Direct and indirect effects of temperature were the main drivers of the spatial distribution in the toxins produced by the cyanobacterial community, the toxin concentrations and toxin quota, and a Toxin Diversity Index (TDI) increased with latitude, while it decreased with water stability.
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