Assessment of the freshwater annual fish Cynopoecilus melanotaenia as a toxicity test organism using three reference substances.
Environ Toxicol Chem
; 22(9): 2188-90, 2003 Sep.
Article
em En
| MEDLINE
| ID: mdl-12959549
This study presents a preliminary evaluation of the use of the Brazilian fish Cynopoecilus melanotaenia as a test organism in toxicity tests. The cryptobiotic stage presented by the eggs of fish C. melanotaenia can overcome the difficulty of continuously keeping cultures and recruiting healthy animals in sufficient numbers to be used in toxicity tests. In order to determine the applicability of this species as a test organism, three different reference substances were evaluated in 96-h acute toxicity tests: Copper sulfate (CuSO4 x 5H2O), sodium dodecil sulfate (C12H25NaO4S), and sodium chloride (NaCl). Sensitivity ranged as follows: copper sulfate (0.05-0.13 mg/L), sodium dodecil sulfate (10.7-19.0 mg/L), and sodium chloride (1.44-1.96 g/L). We conclude that C. melanotaenia shows potential as a test organism in toxicity tests; however, further research should be conducted with other substances and should be compared with the research on other species before we can reach more conclusive results.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dodecilsulfato de Sódio
/
Tensoativos
/
Poluentes da Água
/
Ciprinodontiformes
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Cloreto de Sódio
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Sulfato de Cobre
/
Antídotos
Limite:
Animals
Idioma:
En
Revista:
Environ Toxicol Chem
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Estados Unidos