Considerations regarding the dominance of Cylindrospermopsis raciborskii under low light availability in a low phosphorus lake

Acta Botanica Brasilica

Denise Tonetta¹  Mariana Coutinho Hennemann¹  Débora Monteiro Brentano¹  Mauricio Mello Petrucio¹ 

关键词: Cyanobacteria;    cyanotoxins;    freshwater;    nutrients;    Peri Lake;    phytoplankton;    plasticity;    subtropical;   

DOI  :  10.1590/0102-33062015abb0039

来源: SciELO

【 摘 要 】

ABSTRACTAlthough many studies have shown that the dispersion, increased abundance and dominance of cyanobacteria can be attributed to nutrient enrichment, we discuss features contributing to the dominance of Cylindrospermopsis raciborskii in a shallow, polymictic, subtropical coastal lake with low phosphorus and light limitation (Peri Lake). The presence and dominance of C. raciborskii in an environment with such characteristics emphasizes the idea that nutrients alone do not explain the high density of this cyanobacterium. Other features should be considered in explaining this species dominance, such as phosphorus storage and physiological flexibilitywhich seem to be key features to high densities in low phosphorus systems.

【 授权许可】

CC BY   
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