Ecotoxicological Analyses of Springs of a Brazilian Northeast Conservation Unit

被引：3

作者：

de Sousa, Elielma Lima ^{[1
]}

Pereira, Natalia Jovita ^{[2
]}

Gomes, Janderson Bruzaca ^{[2
]}

dos Santos, Margareth Marques ^{[3
]}

Santos, Debora Martins Silva ^{[4
]}

机构：

[1] State Univ Sao Paulo Unesp, Postgrad Program Agr Microbiol, Access Way Prof Paulo Donato Castellane S-N, Jaboticabal, SP, Brazil

[2] State Univ Maranhao Uema, Postgrad Program Aquat Resources & Fisheries, Univ City Paulo VI S-N, Sao Luis, Maranhao, Brazil

[3] State Univ Maranhao Uema, Biol, Univ City Paulo VI S-N, Sao Luis, Maranhao, Brazil

[4] State Univ Maranhao Uema, Dept Chem & Biol, Postgrad Program Aquat Resources & Fisheries, Univ City Paulo VI S-N, Sao Luis, Maranhao, Brazil

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2020年 / 104卷 / 01期

关键词：

Erythrocytes; Histological changes; Toxic effect; ZEBRAFISH DANIO-RERIO; MICRONUCLEUS TEST; WATER-QUALITY; SAO LUIS; HISTOLOGICAL BIOMARKERS; METAL ACCUMULATION; PROTECTED AREA; COMET ASSAY; GILLS; GENOTOXICITY;

D O I：

10.1007/s00128-019-02757-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Ecotoxicological assessment is an useful tool to evaluate toxicity of pollutants on aquatic organisms. In the present study, we evaluated the lethal effect, micronucleus frequency and histological changes in gills of fish species Danio rerio exposed to water from two sources of a Conservation Unit. We performed acute tests, Micronucleus Test in blood cells and histological analysis of gills. As results, the springs had no lethal toxic effects on the species. Nuclear alterations were present in erythrocytes in organisms exposed to water from the two sampled sites. As well, we found moderate to severe gill abnormalities generating the impairment of respiratory vital functions of these organisms. This study indicates that the water of the springs does not present lethal toxic effect but damage in gills for species from short exposure time.

引用

页码：27 / 34

页数：8

共 49 条

[21] Assessment of Genotoxicity in Gonads, Liver and Gills of Zebrafish (Danio rerio) by Use of the Comet Assay and Micronucleus Test after In Vivo Exposure to Methyl Methanesulfonate [J].