ind-1) was calculated for Jurumirim Reservoir (dam zone) with Bacillariophyta, Chlorophyta and Cyanophyta
exhibiting almost the same proportion (21%).
The structure and composition of the phytoplankton were studied and revealed that due to the turbulence caused by the pumping of water, the Cyanophyta
were controlled and phytoplankton diversity increased significantly.
Riehl W (1984) The effect of Cyanophyta
upon zooplankton in an eutrophic tropical lake (Lake Valencia, Venezuela).
In general, algae are found as a gelatinous mass composed primarily of taxa belonging to Cyanophyta
, Chlorophyta, and Bacillariophyceae (Camburn, 1982).
2015) para las lagunas de tratamiento de aguas residuales se encontraron mayores similitudes, ya que ellos reportan cinco de los seis phyla mencionados en este estudio, Euglenophyta, Bacillariophyta Chlorophyta, Cyanophyta
aeruginosa remained dominant in September 2003 and 2004 while two members of the division Cyanophyta
(Microcystis flos-aquae and C.
It was used for identification of Rhizopus species; "Mucorales" Zycha,  for Aspergillus species;" The Genus Aspergillus"  and "List of accepted species and their synonyms in the family Trichocomonaceae" Pitt,  for Penicillium, Gliocladium, Paecilomyces species; A Manual of the Penicillia" , for Alternaria, Cladosporium, Ulocladium, Aureobasidium, Scopulariopsis species; "Dematiaceous Hypomycetes" Ellis,  and Simmons , for Fusarium species; " The Genus Fusarium" Booth,  for Mycelia sterilia; "Ainsworth & Bisby's Dictionary of the Fungi" Ainsworth,  and "Tohumsuz Bitkiler Sistematigi" (Bacteriophyta, Cyanophyta
, Phycophyta, Mycophyta, Lichenes) .
The occurrence of phytoplankton blooms in many eutrophic reservoirs of the world has been observed, as with genera of the Cyanophyta
group, such as Microcystis, Anabaena, Cylindrospermopsis in some reservoirs.
9%) by De Silva & Perera (1983), Tilapia nilotica fed with Cyanophyta
(43%) by Moriarty & Moriarty (1973) and Stegaster nigricans fed with Enteromorpha algae (75%) by Galetto & Bellwood (1994).
3) was characterized by periods of presence and absence of Cyanophyta
TABLE 3 Mean density (ind/mL) of phytoplankton species in Caracarand lake, State of Roraima, Brazilian Amazon, during a nictemeral cycle in a rainy and dry seasons of 2006 Noon 04 pm Season S M B S M B CYANOPHYTA
Chroococcus turgidus Rainy -- -- -- 3 -- 3 (Kiitzing) Ndgeli Dry -- 9 -- 3 3 3 Cylindrospermopsis Rainy -- -- -- -- -- -- raciborskii (Wok.
and Chlorophyta were the three divisions represented in the two creeks.