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Abstract ▼ AI-Helper

In the present study, acute toxicity data were obtained for hydrogen sulfide to larvae and adults of blue crab Portunus trituberculatus, white shrimp Metapenacus monoceros and prawn Macrobrachium nipponense under continuous flow through system. The larvae 96hr-$LC_{50}$ values of hydrogen...

In the present study, acute toxicity data were obtained for hydrogen sulfide to larvae and adults of blue crab Portunus trituberculatus, white shrimp Metapenacus monoceros and prawn Macrobrachium nipponense under continuous flow through system. The larvae 96hr-$LC_{50}$ values of hydrogen sulfide were 7.3, 9.3 and $9.0{\mu}g/\ell$ for P. trituberculatus, M. monoceros and M. nipponense respectively. The larval sensitivity of the three crustaceans studied for the hydrogen sulfide was in the order of P. trituberculatus> M. nipponense> M. monoceros. The adults 96hr-$LC_{50}$ values of hydrogen sulfide were 42.5, 37.8 and $56.6{\mu}g/\ell$ for P. trituberculatus, M. monoceros and M. ripponense, respectively. The order of toxicity of hydrogen sulfide to adults of the three crustaceans was P. tritruberculatus> M. monoceros> M. nipponense. The larval/adult ratios of hydrogen sulfide toxicity were 5.8, 4.1 and 6.3 for P. trituberculatus M. monoceros and M. nipponense respectively, and larvae were found to be more sensitive to hydrogen sulfide than adults in all cases.

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