Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Diatoms from distinct habitats of a highly heterogeneous reservoir, Billings Complex, southeastern Brazil

Full text
Author(s):
Lívia F. Costa [1] ; Simone Wengrat [2] ; Denise C. Bicudo [3]
Total Authors: 3
Affiliation:
[1] Instituto de Botânica. Núcleo de Pesquisa em Ecologia - Brasil
[2] Instituto de Botânica. Núcleo de Pesquisa em Ecologia - Brasil
[3] Instituto de Botânica. Núcleo de Pesquisa em Ecologia - Brasil
Total Affiliations: 3
Document type: Journal article
Source: Hoehnea; v. 44, n. 4, p. 559-579, 2017-12-00.
Abstract

ABSTRACT A diatom survey was carried out in the largest reservoir of the city of São Paulo. Twenty-four phytoplankton, 15 periphyton, and 12 surface sediment samples covering a gradient of trophic states were collected in 2009 and 2010. Overall, 67 taxa were sampled (60 species and varieties and seven identified at the genus level). Four species are new records to Brazil (Stephanodiscus minutulus, Fragilaria aquaplus, F. perminuta and Ulnaria ferefusiformis), and beyond those, six others are new records to the State of São Paulo. Periphyton accounted for the highest number of species (68.6%) and exclusive taxa (21). The eutrophic and natural mesotrophic regions presented the highest number of species (46 and 41 taxa, respectively), contrasting with the hypereutrophic and artificial mesotrophic regions (22 taxa each). Present findings highlight that the local biodiversity can be directly influenced by the type of habitat analyzed, and different habitats should be included for improving the knowledge of local biodiversity. (AU)

FAPESP's process: 09/53898-9 - Paleolimnological reconstruction of Guarapiranga Reservoir and diagnosis of water and sediment current quality of SPMR water supply reservoirs facing their management
Grantee:Carlos Eduardo de Mattos Bicudo
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 04/08675-8 - History of eutrophication of Lago das Garças (PEFI, São Paulo) during the 20th century, based on the succession of diatoms in sediments
Grantee:Sandra Vieira Costa
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 10/20288-0 - Periphytic diatoms survey and spatial distribution in the Billings Reservoir, São Paulo
Grantee:Lívia Franco da Costa
Support Opportunities: Scholarships in Brazil - Scientific Initiation