Toxicity potential of Grassate® a non-selective herbicide on snails (Achachatina marginata) and earthworms (Aporrectodea longa)
| Autor: | F. E. Okieimen, D. F. Ogeleka, C. J. Onwuemene |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Archachatina marginata
Biomass (ecology) Ecology biology Aporrectodea longa Ecotoxicological risk 06 humanities and the arts 010501 environmental sciences 0603 philosophy ethics and religion biology.organism_classification 01 natural sciences Toxicology chemistry.chemical_compound chemistry Agronomy Glyphosate Toxicity General Earth and Planetary Sciences 060301 applied ethics Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Chemistry and Ecology. 33:447-463 |
| ISSN: | 1029-0370 0275-7540 |
| Popis: | The application of herbicides in agricultural practices may pose certain toxic effects on non-target species including molluscs (snails), earthworms and other soil-dwelling organisms, which would in turn put the lives of humans at great risk. This study considered the lethal and sublethal effects of Grassate®, a non-selective glyphosate-based herbicide on snails (Archachatina marginata) and earthworms (Aporrectodea longa) with regards to ecotoxicological risk assessment. The lethal concentration LC50 for the test chemical averaged at 1.731 ± 0.05 and 3.045 ± 0.08 mg kg−1 for snails and earthworms, respectively. There was decrease in growth and biomass with increased concentration for the species. Growth inhibition of 11–38% in size and 7–43% in length was obtained for earthworms while 26–65% reduction in weight was reported for snails. Using the ecotoxicological risk assessment matrix, the herbicide was classified as D 4 (A; P; E) or 16 (A; P; E), which could be considered as high risk to animals,... |
| Databáze: | OpenAIRE |
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