2007
DOI: 10.1111/j.1365-2427.2007.01738.x
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Abstract: 1. Based on a comprehensive data set collected monthly during 8 years (1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004), we evaluated the effects of mechanical removal of Eichhornia crassipes on the limnological characteristics and algal biomass of a polymictic shallow tropical reservoir. 2. Interrupted time series analyses indicated that the limnological responses to macrophyte removal can be classified as an 'abrupt permanent impact' implying that the overall mean of the time-series shifted promptly after int… Show more

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Cited by 91 publications
(111 citation statements)
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“…In two previous long-term (eight years) studies (Bicudo et al, 2006;2007), the conspicuous changes in the limnological characteristics of a shallow tropical system (Garças Reservoir) derived from the water hyacinth removal was shown. Garças Reservoir was a typical eutrophic polymictic system long before the macrophyte removal turning, however, into hypertrophic after the intervention according to different trophic indices and classification schemes (Bicudo et al, 2006).…”
Section: Introductionmentioning
confidence: 99%
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“…In two previous long-term (eight years) studies (Bicudo et al, 2006;2007), the conspicuous changes in the limnological characteristics of a shallow tropical system (Garças Reservoir) derived from the water hyacinth removal was shown. Garças Reservoir was a typical eutrophic polymictic system long before the macrophyte removal turning, however, into hypertrophic after the intervention according to different trophic indices and classification schemes (Bicudo et al, 2006).…”
Section: Introductionmentioning
confidence: 99%
“…Garças Reservoir was a typical eutrophic polymictic system long before the macrophyte removal turning, however, into hypertrophic after the intervention according to different trophic indices and classification schemes (Bicudo et al, 2006). The longterm phosphorus dynamics in the system, initially driven by the allochthonous nutrient loading, was replaced by internal ecological processes, when feedback mechanisms driven by Cyanobacteria blooms enhanced water stability and oxygen anoxia at the reservoir bottom, thus increasing suitable conditions for phosphorus internal loading and leading to a switch to a degraded state (Bicudo et al, 2007).…”
Section: Introductionmentioning
confidence: 99%
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“…The reduction in density values in the Funil reservoir may reflect the presence of aquatic macrophytes that affect the structure and dynamics of the phytoplankton community in different ways: competition for nutrients with phytoplankton; an increase in grazing pressure on phytoplankton, as they provide refuge for zooplankton from fish predation; and a decrease in light penetration in the water column causing reduced light conditions for the phytoplankton community (Schriver et al, 1995;Lau and Lane, 2002;Bicudo et al, 2007;O'Farrell et al, 2007;Fonseca and Bicudo, 2010). Pinto et al (2007) analysed the influence of floating plants on the phytoplankton structure and found that the presence of macrophytes limited the growth of these organisms and influenced the formation of phytoplankton functional groups.…”
Section: Discussionmentioning
confidence: 99%
“…According to Carol et al (2006), water quality can be enhanced in systems that are built in series, since the change of condition from lotic to lentic in cascade systems allows the thermal stratification of the dam zone. This is reflected in a flow without heat loss from the system.…”
Section: Introductionmentioning
confidence: 99%