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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Habitat monitoring and genotoxicity in Ucides cordatus (Crustacea: Ucididae), as tools to manage a mangrove reserve in southeastern Brazil

Texto completo
Autor(es):
Pinheiro, M. A. A. [1, 2] ; Duarte, L. F. A. [1, 2] ; Toledo, T. R. [1, 2] ; Adam, M. L. [2, 3] ; Torres, R. A. [2, 4]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] UNESP Univ Estadual Paulista, Lab Biol Crustaceos Praca Infante D Henrique, BR-11330900 Sao Paulo - Brazil
[2] Res Grp Crustacean Biol CRUSTA, Sao Paulo - Brazil
[3] UFPE Univ Fed Pernambuco, Ctr Acad Vitoria, BR-55608680 Vitoria De Santo Antao, PE - Brazil
[4] UFPE Univ Fed Pernambuco, Lab Genom Evolut & Ambiental, Ctr Ciencias Biol, Dept Zool, Recife, PE - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: ENVIRONMENTAL MONITORING AND ASSESSMENT; v. 185, n. 10, p. 8273-8285, OCT 2013.
Citações Web of Science: 21
Resumo

In Brazil, the state of So Paulo contains both preserved areas (Jur,ia-Itatins Ecological Station) and extremely impacted ones (Cubato Municipality). This study evaluated the concentrations of five metals (Cu, Cd, Cr, Pb, and Hg) in two mangroves with different levels of anthropogenic impact and the apparent genotoxicity to Ucides cordatus. Water and sediment samples were obtained, and metal concentrations were determined with an atomic absorption spectrophotometer. The genotoxic impact was quantified based on the number of micronucleated cells per 1,000 analyzed (MNaEuro degrees), using hemolymph slides stained with Giemsa. Metal concentrations in water were below the detection limit, except for lead, although no significant difference was observed between the areas (P > 0.05). Sediment from Cubato had higher concentrations of Cd, Pb, Cr, and Cu than sediment from Jur,ia-Itatins (P < 0.05), but no significant differences in metal concentrations were detected among depth strata of the sediment (P > 0.05). Crabs from Cubato had a 2.6 times higher mean frequency of micronucleated cells (5.2 +/- 1.8 MNaEuro degrees) than those from Jur,ia-Itatins (2.0 +/- 1.0 MNaEuro degrees; P < 0.0001). The more-polluted conditions found in the mangrove sediments of Cubato were reflected in the micronucleus assay, demonstrating their genotoxic effect; however, genetic damage should be attributed to a synergistic effect with other kinds of pollutants previously recorded in different environments of Cubato. U. cordatus proved to be an excellent bioindicator of mangrove pollution. This study established, for the first time, the normal frequency of MNaEuro degrees in a population of this species within an ecological station. (AU)

Processo FAPESP: 02/05614-2 - Projeto Uçá II: biologia e manejo do caranguejo-uçá, Ucides cordatus (Linnaeus, 1763) (Crustacea, Decapoda, Brachyura)
Beneficiário:Marcelo Antonio Amaro Pinheiro
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 09/14725-1 - Projeto Uçá III - Impacto genotóxico em populações do caranguejo-uçá, Ucides cordatus (Linnaeus, 1763) (Crustacea, Brachyura, Ucididae): avaliação e correlação com a concentração de metais pesados em cinco manguezais do estado de São Paulo
Beneficiário:Marcelo Antonio Amaro Pinheiro
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 06/05976-2 - Avaliação do impacto genotóxico em Ucides cordatus (Linnaeus, 1763) (Crustacea, Brachyura, Ocypodidae) em sistemas de manguezais do Sudeste do Brasil
Beneficiário:Tomás Roman de Toledo
Modalidade de apoio: Bolsas no Brasil - Iniciação Científica