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Dynamics of the planktonic, periphytic and metaphytic algae community in shallow and tropical reservoir: an observational and experimental study

Grant number: 13/03130-2
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): June 01, 2013
Effective date (End): February 28, 2017
Field of knowledge:Biological Sciences - Ecology
Principal Investigator:Carla Ferragut
Grantee:Thiago Rodrigues dos Santos
Home Institution: Instituto de Botânica. Secretaria do Meio Ambiente (São Paulo - Estado). São Paulo , SP, Brazil

Abstract

Considering that algal communities perform key role in the functioning of aquatic ecosystems, this research aims to assess the algal communities dynamics (phytoplankton, metaphyton, epipelon, and epiphyton) in different equilibrium states. This study aims to develop a simple conceptual model based on the functioning of shallow tropical and also in experimental conditions isolating the effect of P on the algal communities dynamics. This research is part of the project "Influence of spatial heterogeneity on the structure and nutrient status (C, N, P) of periphyton, metaphyton, and phytoplankton in Ninféias Reservoir in the two climatic periods" (FAPESP 2009/52253-4), which was recently finalized. Monthly and bimonthly sampling of physical, chemical and biological will be carried out in three fixed points in the reservoir - one in the pelagic region and two in the littoral. The sampling points are located in the depth gradient, and also take into account the presence and absence of macrophytes stand. Algal communities to compare the structural attributes are expressed in reservoir area. To evaluate the effect of increasing the phosphorus availability (limiting nutrient) on the dynamics of algal communities will be a enrichment experiment with phosphorus addition in mesocosms open bottom. The joint assessment of algal communities can promote a more holistic view of ecosystem functioning, providing a significant advance in knowledge of the ecology of tropical shallow reservoirs. Such knowledge is necessary to develop more efficient tools for monitoring and recovery of tropical aquatic systems.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
LAMBRECHT, RICHARD W.; TAVARES, DIEGO A.; SANTOS, THIAGO R.; FERRAGUT, CARLA. Responses of periphyton biomass and nutrient status to experimental enrichment and its relationships with changes in seston nutrient content and chlorophyll-a. Hydrobiologia, v. 836, n. 1, p. 141-153, JUN 2019. Web of Science Citations: 0.
MENDES SANTOS, SUELE APARECIDA; DOS SANTOS, THIAGO RODRIGUES; FURTADO, MARIANA S. R.; HENRY, RAOUL; FERRAGUT, CARLA. Periphyton nutrient content, biomass and algal community on artificial substrate: response to experimental nutrient enrichment and the effect of its interruption in a tropical reservoir. LIMNOLOGY, v. 19, n. 2, p. 209-218, APR 2018. Web of Science Citations: 4.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.
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