Data/hora: 29/05/2024 00:44:56

Provedor de dados: | Acta Scientiarum: Biological Sciences
País: | Brazil

Título:

Branchial histopathological study of Brachyplatystoma rousseauxii (Castelnau, 1855) in the Guajará bay, Belém, Pará State, Brazil - DOI: 10.4025/actascibiolsci.v32i1.4800

Branchial histopathological study of Brachyplatystoma rousseauxii (Castelnau, 1855) in the Guajará bay, Belém, Pará State, Brazil - DOI: 10.4025/actascibiolsci.v32i1.4800

Autores: | Montes, Caroline da Silva; UFPR; Ferreira, Maria Auxiliadora Pantoja; UFPR; Santos, Simone do Socorro Damasceno; UFPR; Ledebur, Esther Iris C. Freifrau Von; UFPR; Rocha, Rossineide Martins; UFPR.
Data: | 2009-12-02
Ano: | 2009
Palavras-chave: | Biomarkers; Environmental monitoring; Histological alterations; Fish Morfologia biomarkers; Environmental monitoring; Histological alterations; Fish Histologia.
Resumo: | This work analyzes the morphological alterations in Brachyplatystoma rousseauxii gills and evaluates whether this species can be considered an environmental monitoring biomarker of Guajará Bay. Sampling was carried out in four areas around Belém, Brazil, in four annual periods: dry/wet season, wet season, wet/dry season and dry season. Water pH, temperature and suspended material were evaluated. A total of 36 specimens were collected. The second right gill arch of each animal was removed and immediately fixed and processed for histopathology analysis with light microscopy. The physicochemical analysis of the water during the study period showed slight acidity, temperature and material in suspension within normal levels. Histopathological analysis of the gills from 14 individuals from area I presented no alterations, and only 2 individuals from this area presented some significant type of alteration. In contrast, all individuals captured in areas II, III, and IV presented at least one of the following alterations: aneurism-like alterations, epithelial elevation, infiltration, cell proliferation and cell hypertrophy. Based on the gill histopathological analysis, this organ is considered a good biomarker and the native species B. rousseauxii could be used as a bioindicator for environmental monitoring.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4800

10.4025/actascibiolsci.v32i1.4800

Editor: | Universidade Estadual De Maringá

Relação:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4800/4800

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4800/5085

Formato:

application/pdf

application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; v. 32, n. 1 (2010); 93-99

Acta Scientiarum. Biological Sciences; v. 32, n. 1 (2010); 93-99

1807-863X

1679-9283

Fonte:

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DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Biological Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).