Data/hora: 13/06/2024 02:19:29

Provedor de dados: | 3
País: | Brazil
Título: | Spatial and temporal fluctuation of phytoplankton functional groups in a tropical reservoir - doi: 10.4025/actascibiolsci.v35i3.12988
Autores: | Moreti, Lívia Oliveira  Ruiz; Universidade Estadual de Maringá; Martos, Luana; Universidade Estadual de Maringá; Bovo-Scomparin, Vânia Mara; Universidade Estadual de Maringá; Rodrigues, Luzia Cleide; Universidade Estadual de Maringá.
Data: | 2013-08-01
Ano: | 2013
Palavras-chave: | 2.05.02.00-1 functional group; Biovolume; Horizontal distribution; Oligotrophic reservoir 2.03.00.00-0.
Resumo: | Along the horizontal axis of reservoirs are generally recognized three zones (fluvial, transition and lacustrine) with distinct hydrodynamic and physical, chemical and biological properties. Quarterly samplings were conducted in 2002, in the limnetic region from each zone, at different depths of a tropical reservoir. To test the hypothesis that highest biomass (biovolume) of phytoplankton are found in the transition zone, the PERMANOVA analysis was realized. 106 taxa were recorded. Significant differences between biovolume values of the three zones were not verified (pseudo F = 0,89; p = 0,55). Higher values of biomass were obtained in lacustrine and transition zones of the reservoir. The functional group (FG) N (Cosmarium spp.) was dominant in these zones, in rain period, and related to low phosphorus concentration, high transparency and water column stability. Low biovolume values in reservoir characterized oligotrophic conditions in all zones of the reservoir, most of the period. The dominance of FGs Y, Lo, E, P and A, as evidenced by the CCA, was associated with low light availability and higher nutrients concentrations.
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/12998

10.4025/actascibiolsci.v35i3.12998

Editor: | Universidade Estadual De Maringá

Formato:

application/pdf

application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; v. 35, n. 3 (2013); 359-366

Acta Scientiarum. Biological Sciences; v. 35, n. 3 (2013); 359-366

Fonte:

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DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS  Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Biological Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).