Journal
BRAZILIAN JOURNAL OF BIOLOGY
Volume 70, Issue 3, Pages 825-829Publisher
INT INST ECOLOGY
DOI: 10.1590/S1519-69842010000400013
Keywords
Ceratium furcoides; blooms turbulence; cysts; cold fronts
Categories
Funding
- Dersa (State of Sao Paulo Government)
- Biota/Fapesp
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An unusual bloom of Ceratium furcoides is reported for a station of the Taquacetuba compartment of the Billings Reservoir The appearance of this bloom is attributed to the mixing and turbulence of the water column that removed Ceratium eysts from the surface of the sediment and promoted conditions for the growth of this species in the region of mixing Cold fronts approaching the Billings Reservoir are probably the cause of the mixing and bloom Also turbulence induced by wind increased phosphorus concentration in the water column Ceratium furcoides was the dominant species at station 1 where the nutrient concentrations of nitrogen and phosphorus were high Ceratium spp blooms may be a problem for water treatement and massive mortality can affect the dissolved oxygen of the water producing fish kill
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