CHEMICAL ANALYSIS TROUGH “ENERGY-DISPERSIVE SPECTROSCOPY (EDS)” OF DIGENEA METACERCARIAE FOUND INFESTING SPECIMENS OF HOPLOSTERNUM LITORALLE (HANCOCK, 1828) (SILURIFORMES: CALLICHTHYDAE), CAPTURED IN MANAUS POLLUTED IGARAPES

Authors

  • Aprigio Mota Morais INPA – Instituto Nacional de Pesquisas da Amazônia, Laboratório de Parasitologia e Patologia de Peixes, Manaus, AM. Bolsista do PNPD da CAPES – Coordenação de Aperfeiçoamento de Pessoal de Nível Superior.
  • José Celso de Oliveira Malta INPA – Instituto Nacional de Pesquisas da Amazônia, Laboratório de Parasitologia e Patologia de Peixes, Manaus, AM. https://orcid.org/0000-0003-1496-2190

DOI:

https://doi.org/10.24039/rnh201482913

Keywords:

Amazon, chemical elements, fishes, Platyhelminthes, pollution.

Abstract

We examined 82 Hoplosternum littorale captured in two Manaus polluted igarapes, namely, São Raimundo and Educandos, in October and November 2010. Fish specimen's standard length and weight showed to be 14.87±71 cm and 16.53±24.01 g, respectively. We carried out the chemical analyses of tissues with the aid of an Energy-Dispersive Spectroscopy (EDS) system in conjunction with a Scanning Electron Microscope (SEM). We determined the punctual qualitative and semi-quantitative chemical composition of the metacercariae of Clinostomum marginatum, Tylodelphis destructor and of the pro-genetic metacercaria Herpetodiplostomum caimanicola, by using the characteristic X-ray emission. Microanalyses by EDS determined the presence of carbon (C); oxygen (O); iron (Fe); zinc (Zn); aluminum (Al); siliceous (Si); phosphorous (P); sulfur (S); potassium (K); calcium (Ca); chlorine (Cl); copper (Cu); lead (Pb); manganese (Mn); platinum (Pt); tungsten (W) and cobalt (Co). The detected heavy metals Cu, Pb and W indicated that igarapes is heavily polluted, and that Digenea metacercariae are highly tolerant to the accumulation of these elements.

Downloads

Download data is not yet available.

Published

2014-02-11

How to Cite

Mota Morais, A., & de Oliveira Malta, J. C. (2014). CHEMICAL ANALYSIS TROUGH “ENERGY-DISPERSIVE SPECTROSCOPY (EDS)” OF DIGENEA METACERCARIAE FOUND INFESTING SPECIMENS OF HOPLOSTERNUM LITORALLE (HANCOCK, 1828) (SILURIFORMES: CALLICHTHYDAE), CAPTURED IN MANAUS POLLUTED IGARAPES. Neotropical Helminthology, 8(2), 217–225. https://doi.org/10.24039/rnh201482913

Issue

Section

Artículos Originales