SciELO - Scientific Electronic Library Online

 
vol.30A oscilação do volume de água do reservatório influencia da mesma forma na dieta de peixes?O uso de cloreto de polialumínio como medida de restauração da qualidade da água em lagos rasos tropicais índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Acta Limnologica Brasiliensia

versão impressa ISSN 0102-6712versão On-line ISSN 2179-975X

Resumo

SILVA, Núbia da et al. Spatial and temporal dynamics of functional groups of phytoplankton in a tropical shallow lake. Acta Limnol. Bras. [online]. 2018, vol.30, e102.  Epub 23-Abr-2018. ISSN 0102-6712.  http://dx.doi.org/10.1590/s2179-975x10516.

Aim

To evaluate the structure and dynamics of functional phytoplankton groups (FGs) over a macrophyte cover gradient and their relations with environmental variable in small, shallow clear-water lake.

Methods

Physical, chemical and phytoplankton analyses were made between August 2014 and June 2015 at three points on the Santa Lucia lake (Paraiba, Brazil). Tukey and Wilcoxon tests were applied to the data followed by CCA and Anova.

Results

The submerged macrophyte cover and phytoplankton biomass presented high spatial and temporal uniformity. The increase in rainfall induced small variations in functional groups, promoting increase the N group and reduction of the SN.

Conclusion

The homogeneity in the composition and structure functional groups along macrophyte cover confirm the tendency that in small and shallow lakes communities of limnetic and shoreline zones tend to be similar.

Palavras-chave : environmental variables; homogeneity; macrophytes; phytoplankton; shallow lakes.

        · resumo em Português     · texto em Inglês     · Inglês ( pdf )