From the importance of organic carbon in reproduction tests with Eisenia fetida.
Environ Toxicol Pharmacol
; 104: 104297, 2023 Nov.
Article
em En
| MEDLINE
| ID: mdl-37839630
ABSTRACT
The standard Eisenia fetida chronic toxicity reproduction test is normalized and needs up to 8 weeks of experimentation. Many matrixes have shown toxic effects on the earthworms' survey, growth and reproduction. But the food factor may affect the organisms' responses to contaminated media in such tests. We try to evaluate the effect, or not, of the organic carbon content present in the environment, as spreadable organic wastes added in soil, on the reproduction test of Eisenia fetida. We confirm the influence of the organic matter content on earthworm reproduction. This "food" factor must be considered when studying environmental samples rich in organic matter, since that could mask potentially harmful effects. To minimize this potential "food" effect during reproduction tests, we recommend an inverse gradient of organic matter contribution by the "horse dung" food applied in all conditions according to the dose of agricultural amendments tested.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oligoquetos
/
Poluentes do Solo
Limite:
Animals
Idioma:
En
Revista:
Environ Toxicol Pharmacol
Ano de publicação:
2023
Tipo de documento:
Article