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Assessment of riparian landscape structure and stream network connectivity influence in stream fishes diversity in catchments of Corumbataí river basin, SP.

Grant number: 07/06794-8
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): March 01, 2008
Effective date (End): February 28, 2010
Field of knowledge:Biological Sciences - Ecology - Applied Ecology
Principal Investigator:Silvio Frosini de Barros Ferraz
Grantee:Felipe Rossetti de Paula
Host Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil


Fishes present high species diversity and most freshwater species are found in the Neotropical region. However, the diversity has been threatened due to lotic ecosystems degradation, mainly by the habitat modification, including the removal of riparian forests. The riparian forests act as a connection element between terrestrial and aquatic environments and they play important role in the functioning of lotic ecosystems and aquatic communities’ structure. For a long time the riparian forests had been widely altered and converted into agricultural use, contributing to the process of riparian zone fragmentation. That landscape change causes modifications of lotic ecosystem and aquatic communities’ structure, including freshwater fishes. They have complex lifecycles that depend of structural complexity of lotic ecosystems, mainly the connectivity between headwaters reaches and downstream reaches. In this study, we will try to analyze the stream fish’s diversity in function of riparian zone structure and stream network connectivity. It will be calculated fish communities diversity index and landscape metrics of riparian zones. ANOVA tests will be used to analyze differences in the fish communities’ diversity index in function of riparian forest cover composition and configuration and stream network connectivity. Next, a multiple regression analysis will be used to identity most important landscape variables that influence fish’s communities. This project is considerate important to increase the knowledgement about human impacts in streams and fishes in the Neotropical region and also to support recuperation, management and conservation projects related to these environments and the aquatic biodiversity.

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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)
DE PAULA, FELIPE ROSSETTI; GERHARD, PEDRO; DE BARROS FERRAZ, SILVIO FROSINI; WENGER, SETH J.. Multi-scale assessment of forest cover in an agricultural landscape of Southeastern Brazil: Implications for management and conservation of stream habitat and water quality. ECOLOGICAL INDICATORS, v. 85, p. 1181-1191, . (00/14284-0, 07/06794-8, 06/04723-3)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
PAULA, Felipe Rossetti de. Diversidade das comunidades de peixes de riachos em função da estrutura da paisagem em microbacias da bacia do rio Corumbataí, SP. 2010. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Biociências. Rio Claro Rio Claro.

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