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Toxicity of the Herbicide 2.4-D-Na to Two Species of Freshwater Prawn of the Genus Macrobrachium |
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| Authors: | Omkar G S Shukla |
| Abstract: | In batch experiments with exposure for 24 to 96 h Macrobrachium naso and M. dayanum were exposed to solutions of the sodium salt of 2,4-dichlorophenoxy acetic acid. The LC50,96h are 2.397 g/l for Macrobrachium naso and 2.275 g/l for M. dayanum. No mortality was observed in solutions of 2.1 and 1.85 g/l. The differences in toxicity are not dependent on the size of the organisms, but they are species-specific. |
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