| Autor: |
Chuah TS; Department of Agro-technology, Faculty of Agro-technology and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia. chuahts@umt.edu.my, Loh JY, Hii YS |
| Jazyk: |
angličtina |
| Zdroj: |
Bulletin of environmental contamination and toxicology [Bull Environ Contam Toxicol] 2007 Nov; Vol. 79 (5), pp. 557-61. Date of Electronic Publication: 2007 Jul 18. |
| DOI: |
10.1007/s00128-007-9234-3 |
| Abstrakt: |
Acute and chronic effects of insecticide-endosulfan on the survival and reproduction performance of Moina macrocopa were determined in a laboratory study. Endosulfan concentrations that cause 50% mortality (LC50) after exposure for 24 and 48 h were 3.34 and 0.16 mg L(-1), respectively. Average longevity, initial age of reproduction and intrinsic rate of natural increase were reduced at 0.002 mg L(-1). Fecundity was greatly reduced by about 70% at 0.0004 mg L(-1) and approximately 97% at 0.002 mg L(-1) as compared to control organisms throughout the whole life span of 15 days. If environmental concentration of endosulfan do not exceed 0.0004 mg L(-1), application of this insecticide is unlikely to induce detrimental effects on these cladoceran populations in agro-ecosystem. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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