2013
DOI: 10.1111/1574-6941.12243
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Lack of nitrogen as a causing agent ofCylindrospermopsis raciborskiiintermittent blooms in a small tropical reservoir

Abstract: Cylindrospermopsis raciborskii is the focus of many studies due to its toxicity and increasing blooms frequency. The comprehension of the factors that might trigger these blooms is fundamental for the maintenance of good freshwater quality. To better understand the autoecology of C. raciborskii and to identify the factors controlling its dominance, general limnological features were evaluated in Pedalinhos reservoir, Brazil. Samplings were performed monthly between 2011 and 2013. Although C. raciborskii is con… Show more

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Cited by 24 publications
(14 citation statements)
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“…Other lentic water bodies in the same region showed similar tendencies and pointed to rain as the major climatic force driving changes in their water quality (e.g. Barros et al 2006;Figueredo et al 2014), since rains may be sufficiently intense in the tropics to cause dilution of many ions and nutrients in the water (Figueredo & Giani 2001). For Marola Lake, climate clearly affected total-P and NO 2 -+ NO 3 -concentration, which lower values were recorded in the rainy season.…”
Section: Discussionmentioning
confidence: 91%
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“…Other lentic water bodies in the same region showed similar tendencies and pointed to rain as the major climatic force driving changes in their water quality (e.g. Barros et al 2006;Figueredo et al 2014), since rains may be sufficiently intense in the tropics to cause dilution of many ions and nutrients in the water (Figueredo & Giani 2001). For Marola Lake, climate clearly affected total-P and NO 2 -+ NO 3 -concentration, which lower values were recorded in the rainy season.…”
Section: Discussionmentioning
confidence: 91%
“…Regarding temporal variations, some of the major variables pointed by the PCA were significantly correlated to phytoplankton, and helped explaining the observed trends. The strong negative correlation between phytoplankton and water transparency is more obvious and generally explained by the high phytoplankton biomass causing an increase in turbidity (Branco & Senna 1996;Figueredo et al 2014). Independent of the causes of a low turbidity, its consequence is a favorable condition for the dominant Cylindrospermopsis raciborskii, which has a competitive advantage by growing efficiently under shadow conditions (Bouvy et al 1999;Kokocinski & Soininen 2012).…”
Section: Discussionmentioning
confidence: 99%
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