A perennial bloom of Planktothrix agardhii (Cyanobacteria) in a shallow eutrophic French lake: limnological and microcystin production studies

Briand, Jean‐François; Robillot, Cédric; Quiblier-Llobéras, Catherine; Bernard, Cécile

doi:10.1127/archiv-hydrobiol/153/2002/605

Cited by 54 publications

(60 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Twelve different strains of Microcystis were isolated from one Microcystis bloom by Henning et al (1997), eight of which were toxic, four of them not. Briand et al (2002) proposed in a case of a perennial population of P. agardhii in France, that non-toxic strains grow in winter, whereas toxic ones grow in spring and autumn. As another source for MCs, picocyanobacteria with a typical diameter of 0.2-2 mm appear in all environments including lakes, dams and drinking water reservoirs (Komárek, 1996) and exist in mixed communities with other planktic scum-forming cyanobacteria (Wilde and Cody, 1998).…”

Section: Discussionmentioning

confidence: 99%

Occurrence and elimination of cyanobacterial toxins in two Australian drinking water treatment plants

Hoeger

Shaw²,

Hitzfeld

et al. 2004

Toxicon

View full text Add to dashboard Cite

In Australian freshwaters, Anabaena circinalis, Microcystis spp. and Cylindrospermopsis raciborskii are the dominant toxic cyanobacteria. Many of these surface waters are used as drinking water resources. Therefore, the National Health and Medical Research Council of Australia set a guideline for MC-LR toxicity equivalents of 1.3 mg/l drinking water. However, due to lack of adequate data, no guideline values for paralytic shellfish poisons (PSPs) (e.g. saxitoxins) or cylindrospermopsin (CYN) have been set. In this spot check, the concentration of microcystins (MCs), PSPs and CYN were determined by ADDA-ELISA, cPPA, HPLC-DAD and/or HPLC-MS/MS, respectively, in two water treatment plants in Queensland/Australia and compared to phytoplankton data collected by Queensland Health, Brisbane. Depending on the predominant cyanobacterial species in a bloom, concentrations of up to 8.0, 17.0 and 1.3 mg/l were found for MCs, PSPs and CYN, respectively. However, only traces (,1.0 mg/l) of these toxins were detected in final water (final product of the drinking water treatment plant) and tap water (household sample). Despite the low concentrations of toxins detected in drinking water, a further reduction of cyanobacterial toxins is recommended to guarantee public safety. q

show abstract

Section: Discussionmentioning

confidence: 99%

Occurrence and elimination of cyanobacterial toxins in two Australian drinking water treatment plants

Hoeger

Shaw²,

Hitzfeld

et al. 2004

Toxicon

View full text Add to dashboard Cite

show abstract

“…The concentration of MC-RR was chosen to equal the mean concentration in MC-LR eq. found in the BNV (France) during the permanent bloom (Briand et al, 2002) when outliers (peak concentrations) are excluded. The concentration of intracellular extracts of the exponential and plateau phases of the MC-strain that were added each day to each individual was calculated so that the total volume (intracellular extract + extracellular extracts) reaches the final concentration of 3 mg.L x1 .…”

Section: Experimental Designmentioning

confidence: 99%

Effects of microcystin-producing and microcystin-free strains ofPlanktothrix agardhiion long-term population dynamics ofDaphnia magna

Hulot

Carmignac²,

Legendre³

et al. 2012

Ann. Limnol. - Int. J. Lim.

View full text Add to dashboard Cite

-The effects of cyanobacterial toxins on herbivorous zooplankton depend on cyanobacterial strains, zooplankton species and environmental conditions. To explore the relationship between zooplankton and cyanobacteria, we investigated the effects of Planktothrix agardhii extracts on Daphnia magna population dynamics. We designed an experiment where individuals were grown in the presence of extracts of two P. agardhii strains. We monitored daily life-history parameters of D. magna individuals subjected to microcystin-RR (MC-RR), intracellular and extracellular extracts of a microcystin-producing strain (MC-strain, PMC 75.02) and a microcystin-free strain (MC-free strain, PMC 87.02) of P. agardhii. Measured life-history parameters of D. magna were used to build population dynamics models and compute expected population growth rate, replacement rate, generation time and proportion of adult and juveniles at demographic equilibrium. Results show that MC-RR tends to slow the life history (reduced growth rate and larger proportion of adults). In contrast, intracellular extracts of the two strains tend to accelerate the life history (increased growth rate, decreased generation time and lower proportion of adults). Extracellular extracts produce the same trends as the intracellular extracts but to a lesser extent. However, the MC-strain has stronger effects than the MC-free strain. Interestingly, extracellular extracts of the MC-free strain may have effects comparable to pure MC-RR. Moreover, in the presence of MC-RR and both cyanobacterial extracts, the daily fecundities present a cyclic pattern. These results suggest that MC-RR and unknown metabolites of cyanobacterial extracts have negative effects on D. magna reproduction processes such as those observed with endocrine-disruptive molecules.

show abstract

“…Altogether 32 samples were collected from each lake during the study. As no thermal or oxygenation stratification was observed, and following previous studies in shallow lakes (Berger, 1975;Romo & Miracle, 1993Briand et al, 2002a;Ott et al, 2003) phytoplankton samples were collected from 0.5 m below the surface of the water. Samples for phytoplankton and chemical analysis were collected using a 5 l Limnos water sampler at the deepest point of the reservoir.…”

Section: Samplingmentioning

confidence: 99%

The ecology of the invasive cyanobacteriumCylindrospermopsis raciborskii(Nostocales, Cyanophyta) in two hypereutrophic lakes dominated byPlanktothrix agardhii(Oscillatoriales, Cyanophyta)

Kokociński

Stefaniak

Mankiewicz-Boczek

et al. 2010

European Journal of Phycology

View full text Add to dashboard Cite

Biological invasions have attracted particular attention since they often result in serious consequences for natural ecosystems. One planktonic invasive species is Cylindrospermopsis raciborskii, a cyanobacterium originally reported to occur exclusively in the tropics. Over the last few decades its range has extended to temperate regions and it occupies shallow highly eutrophic lakes previously dominated by other cyanobacteria. The purpose of this study was to examine the ecology of C. raciborskii during Planktothrix agardhii blooms in two shallow lakes in western Poland and to determine whether these species have different environmental preferences. Multiple linear regression showed that the biomass of P. agardhii was significantly negatively related to Secchi depth in Lake Bnin´skie. In Lake Bytyn´skie, P. agardhii was significantly positively related to concentrations of PO 3À 4 , chlorophyll a and total phosphorus and negatively related to Secchi depth, NO À 3 , and total nitrogen. Cylindrospermopsis raciborskii was significantly positively related only to concentrations of NH þ 4 . There was a negative correlation between the biomass of P. agardhii and C. raciborskii perhaps showing different responses to environmental variables. Moreover, the biomass of P. agardhii was negatively correlated with Shannon-Wiener diversity of the phytoplankton assemblages. Our results support the concept that these cyanobacterial species have different environmental preferences and their niches differ from each other. These results suggest that light is an important driver of phytoplankton community structure resulting in shifts from a community dominated by P. agardhii in very turbid waters to more diverse communities perhaps including the invasive C. raciborskii in clearer waters.

show abstract

A perennial bloom of Planktothrix agardhii (Cyanobacteria) in a shallow eutrophic French lake: limnological and microcystin production studies

Cited by 54 publications

References 0 publications

Occurrence and elimination of cyanobacterial toxins in two Australian drinking water treatment plants

Occurrence and elimination of cyanobacterial toxins in two Australian drinking water treatment plants

Effects of microcystin-producing and microcystin-free strains ofPlanktothrix agardhiion long-term population dynamics ofDaphnia magna

The ecology of the invasive cyanobacteriumCylindrospermopsis raciborskii(Nostocales, Cyanophyta) in two hypereutrophic lakes dominated byPlanktothrix agardhii(Oscillatoriales, Cyanophyta)

Contact Info

Product

Resources

About