Changes in hematological parameters of Cichlasoma dimerus (Teleostei, Perciformes) exposed to sublethal concentrations of 4-tert-octylphenol

REY VAZQUEZ, G.; LO NOSTRO, F.

ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY

SPRINGER

Lugar: Berlin; Año: 2014 vol. 66 p. 463 - 469

0090-4341

Stress response involves various physiological changes including alteration in hematological parameters, which are closely related to the response of fish to the environment. 4-tert-octylphenol (OP) is one of the most widely used surfactants and can pollute the aquatic environment. Previous studies have already demonstrated estrogenic effects of this compound and it can therefore disrupt the reproductive system of male fish. The purpose of this study was to evaluate the effects caused by sublethal concentrations of OP on hematological parameters as biomarkers to assess environmental stress. Adult males and females of Cichlasoma dimerus were exposed to waterborne OP during 60 days under semi-static conditions. Experimental groups consisted of control (ethanol 0.005%), OP 150 and OP 300 mg/L. Octylphenol caused hemodynamic stress in C. dimerus that lead to normochromic and normocytic anemia, as well as erythrocytic pathologies such as a significant increase in erythroblasts and amitotic erythrocytes. Then, all the studied parameters could be used as biomarkers for the presence of xenobiotics in water.