Biomarkers in Catfish Sciades herzbergii (Teleostei: Ariidae) from Polluted and Non-polluted Areas (São Marcos’ Bay, Northeastern Brazil)

Biomarkers based on specific enzyme activities and histological alterations are useful tools for evaluating toxicological effects of xenobiotics in wild fish. In this work, an experimental system of biomarkers with enzyme glutathione S -transferase (GST) and branchial lesions in catfish ( Sciades he...

Full description

Saved in:
Bibliographic Details
Published in:Applied biochemistry and biotechnology 2012-03, Vol.166 (5), p.1314-1327
Main Authors: Carvalho-Neta, Raimunda Nonata Fortes, Torres, Audalio Rebelo, Abreu-Silva, Ana Lúcia
Format: Article
Language:English
Subjects:
Animals
Anthropogenic factors
Ariidae
Bays
Biochemistry
Biomarkers
Biomarkers - metabolism
Biotechnology
Catfishes - metabolism
Chemistry
Chemistry and Materials Science
Environmental Pollution
Enzymatic activity
Fish
Fish Diseases - etiology
Glutathione Transferase - metabolism
Lesions
Nonlinear Dynamics
Pollution
Teleostei
Xenobiotics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Biomarkers based on specific enzyme activities and histological alterations are useful tools for evaluating toxicological effects of xenobiotics in wild fish. In this work, an experimental system of biomarkers with enzyme glutathione S -transferase (GST) and branchial lesions in catfish ( Sciades herzbergii ) was mathematically modeled. The fish were collected along known pollution gradients (S1) and from areas regarded relatively free of anthropogenic input (S2) in São Marcos’ Bay, Brazil. GST was measured spectrophotometrically, and branchial lesions were examined by light microscope. The databases from this analysis were compiled, and non-linear models were used to analyze the dependence of the enzyme activity on the areas of sampling and on selected biological parameters of the fish. Fish weight, length, and somatic indices (gonadosomatic index) were significant in the model of GST activity only in A2. Brachial lesions were significant in the model of GST activity only in A1. The obtained model indicates that when the GST ceases to act, serious branchial lesions are observed in the fish of the contaminated regions.
ISSN:0273-2289
1559-0291
DOI:10.1007/s12010-011-9519-1