A dynamic simulation model for the blooming of Oscillatoria agardhii in a monomictic lake

Montealegre, Ricardo Jiménez; Verreth, J.A.J.; Steenbergen, K. Van; Moed, J. R.; Machiels, M.A.M.

doi:10.1016/0304-3800(94)00114-w

Cited by 21 publications

(8 citation statements)

References 11 publications

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“…However, although a large number of field surveys of P. agardhii have been carried out and limnological characteristics of different lakes have been determined, very few studies used numerical analysis, such as statistical or dynamic models, to detect and quantify the relationships between P. agardhii and environmental variables. The dynamic simulation model of Oscillatoria agardhii in Lake Vechten proposed by Montealegre et al (1995) appears to be the only example of modeling P. agardhii dynamics in situ . Statistical models were recently shown to be very useful for linking both Microcystis and Anabaena biomass dynamics, and microcystin concentrations to environmental changes in Quebec lakes (Rolland et al , 2005).…”

Section: Introductionmentioning

confidence: 99%

Collapse of a Planktothrix agardhii perennial bloom and microcystin dynamics in response to reduced phosphate concentrations in a temperate lake

Catherine¹,

Quiblier²,

Yéprémian³

et al. 2008

FEMS Microbiology Ecology

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Planktothrix agardhii dynamics, microcystin concentration and limnological variables were monitored every 2 weeks for 2 years (2004-2006) in a shallow hypereutrophic artificial lake (BNV, Viry-Châtillon, France). Time-series analysis identified two components in the P. agardhii biomass dynamics: (1) a significant decreasing trend in P. agardhii biomass (65% of the overall variance) and (2) a residual component without significant seasonal periodicity. A path-analysis model was built to determine the main factors controlling the P. agardhii dynamics over the period studied. The model explained 66% of P. agardhii biomass changes. The decreasing trend in P. agardhii biomass was significantly related to a decrease in the PO4(3-) concentration resulting from an improved treatment of the incoming watershed surface water. The residual component was related to zooplankton dynamics (cyclopoid abundances), supporting the hypothesis of a top-down control of P. agardhii, but only when the biomass was low. Forty-nine percent of the variability in the microcystin (MC) concentration (min:<0.1 microg equivalent MC-LR L(-1); max: 7.4 microg equivalent MC-LR L(-1)) could be explained by changes in the P. agardhii biomass. The highest toxin content was observed when P. agardhii biomass was the lowest, which suggests changes in the proportion of microcystin-producing and -nonproducing subpopulations and/or the physiological status of cells.

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Section: Introductionmentioning

confidence: 99%

Collapse of a Planktothrix agardhii perennial bloom and microcystin dynamics in response to reduced phosphate concentrations in a temperate lake

Catherine¹,

Quiblier²,

Yéprémian³

et al. 2008

FEMS Microbiology Ecology

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“…In the ER model, μ was approximated as a function of available nutrients and irradiance, as it was for many other models (Somlyody and Koncsos, 1991;Montealegre et al, 1995;Legovic and Cruzado, 1997;Roelke, 2000). That is, the value of μ at a given time step was a function of conditions at that time step.…”

Section: The Plankton Communitymentioning

confidence: 99%

Hypoxia in Waters of the Coastal Zone

Eldridge¹,

Roelke²

2011

Treatise on Estuarine and Coastal Science

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“…Traditionally, the specific death rate of algae has a simple form -either a constant (Prokopkin et. al., 2006) or a function of water temperature (Montealegre et al, 1995;Omlin et al, 2001).…”

Section: Specific Death Rate Of Cyanobacteriamentioning

confidence: 99%

Theoretical Analysis of the Potential of Silver Carp Hypophthalmichthys Molitrix in the Control of Water Blooming by Different Species of Cyanobacteria

Prokopkin¹,

Kolmakov²,

Gubanov³

et al. 2009

J. Sib. Fed. Univ., Biol.

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The possibility to use silver carp (Hypophthalmichthys molitrix) in the control of water blooming by cyanobacteria is theoretically analyzed. To attain this goal the dynamic model has been developed, describing communities of two species of cyanobacteria: Anabaena flos-aquae and Microcystis aeruginosa, taking into account direct influence of silver carp on cyanobacteria growth-stimulation of cyanobacteria growth rate and cyanobacteria digestion in fish gut. The calculation results have shown that silver carp influences oppositely the formation of blooming by cyanobacteria species simulated. Reservoir stocking with silver carp inhibits the development of Anabaena flos-aquae species. The development of Microcystis aeruginosa is not constrained by silver carp. Forming blooming outbreaks by this species is possible even with increasing stocking. One of the possible reasons may be the fact that the Microcystis aeruginosa growth is stimulated after passing through fish gut. Therefore, when planning biomanipulations using silver carp it is necessary to take into consideration the relationship between fish and the different species of cyanobacteria. The success of such manipulations depends on what species of cyanobacteria are dominant in the ecosystem in the blooming period.

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A dynamic simulation model for the blooming of Oscillatoria agardhii in a monomictic lake

Cited by 21 publications

References 11 publications

Collapse of a Planktothrix agardhii perennial bloom and microcystin dynamics in response to reduced phosphate concentrations in a temperate lake

Collapse of a Planktothrix agardhii perennial bloom and microcystin dynamics in response to reduced phosphate concentrations in a temperate lake

Hypoxia in Waters of the Coastal Zone

Theoretical Analysis of the Potential of Silver Carp Hypophthalmichthys Molitrix in the Control of Water Blooming by Different Species of Cyanobacteria

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