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Genotoxic impact on populations of the crab, Ucides cordatus (Linnaeus, 1763) (Crustacea, Brachyura, Ucididae), in five mangrove areas at São Paulo State, Brazil.

Grant number: 10/01552-9
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): June 01, 2010
Effective date (End): May 31, 2013
Field of knowledge:Biological Sciences - Zoology - Morphology of Recent Groups
Principal Investigator:Marcelo Antonio Amaro Pinheiro
Grantee:Luis Felipe de Almeida Duarte
Host Institution: Universidade Estadual Paulista (UNESP). Campus Experimental do Litoral Paulista. São Vicente , SP, Brazil


This study aims to evaluate contamination of water, sediment, vegetation and the uçá-crab by heavy metals in five mangroves of the São Paulo State, and to analyze the genotoxic impact on populations of this crustacean, based on the frequency of micronuclei cells. Mangroves are Permanent Preservation Areas (PPAs) and nurseries for many species, including the uçá-crab, which is widely marketed and consumed by humans in coastal regions. Five mangroves areas will be evaluated in São Paulo State (Cananéia, Iguape, Juréia, Cubatão and São Vicente), which was previously selected according to their level of pollution. Each mangrove will be represented by three sampling sub-areas. Sediments, tree leaves (Rhizophora mangle), corporeal structures from uçá-crab (Ucides cordatus) and water from crustacean burrows will be sampled for the quantification of six heavy metals (Cd, Cu, Pb, Cr, Mn and Hg) by atomic absorption spectrophotometry. The haemolymph of five crabs caught/subarea (n=75) will be used for the preparation of three slides/specimen and after staining they will be used to quantify the number of micronuclei cells (MCs) under microscope (1000X). Data obtained by quantification of MCs as well as heavy metal levels will be submitted to ANOVA and Nested ANOVA, respectively, which averages will be compared by Tukey's test (5%). The results obtained will assess the conservation status of mangroves and quality of natural stocks of U. cordatus, guiding actions to be leaded by government agencies for their management.

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Scientific publications (4)
(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 ALMEIDA DUARTE, LUIS FELIPE; DE SOUZA, CAROLINE ARAUJO; SEABRA PEREIRA, CAMILO DIAS; AMARO PINHEIRO, MARCELO ANTONIO. Metal toxicity assessment by sentinel species of mangroves: In situ case study integrating chemical and biomarkers analyses. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, v. 145, p. 367-376, . (09/14725-1, 10/01552-9)
DE ALMEIDA DUARTE, LUIS FELIPE; BLASCO MORENO, JULIAN; MIRANDA CATHARINO, MARILIA GABRIELA; GONCALVES MOREIRA, EDSON; TROMBINI, CHIARA; SEABRA PEREIRA, CAMILO DIAS. Mangrove metal pollution induces biological tolerance to Cd on a crab sentinel species subpopulation. Science of The Total Environment, v. 687, p. 768-779, . (14/13448-2, 10/01552-9, 16/05414-6)
DE ALMEIDA DUARTE, LUIS FELIPE; BLASCO, JULIAN; MIRANDA CATHARINO, MARILIA GABRIELA; MOREIRA, EDSON GONCALVES; TROMBINI, CHIARA; NOBRE, CAIO RODRIGUES; MORENO, BEATRIZ BARBOSA; DE SOUZA ABESSA, DENIS MOLEDO; SEABRA PEREIRA, CAMILO DIAS. Lead toxicity on a sentinel species subpopulation inhabiting mangroves with different status conservation. Chemosphere, v. 251, . (14/13448-2, 16/05414-6, 10/01552-9)
DE ALMEIDA DUARTE, LUIS FELIPE; DE SOUZA, CAROLINE ARAUJO; NOBRE, CAIO RODRIGUES; SEABRA PEREIRA, CARRILLO DIAS; AMARO PINHEIRO, MARCELO ANTONIO. Multi-level biological responses in Ucides cordatus (Linnaeus, 1763) (Brachyura, Ucididae) as indicators of conservation status in mangrove areas from the western atlantic. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, v. 133, p. 176-187, . (09/14725-1, 10/01552-9)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
DUARTE, Luis Felipe de Almeida. Impacto geno e citotóxico em populações do caranguejo-uçá, Ucides cordatus (Linnaeus, 1763) (Crustacea, Brachyura, Ucididae), em manguezais do estado de São Paulo, Brasil. 2014. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Instituto de Biociências. Rio Claro Rio Claro.

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