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1 December 2005 USE OF METABOLISM TO EVALUATE THE SUBLETHAL TOXICITY OF MERCURY ON FARFANTEPANEUS BRASILIENSIS LARVAE (LATREILLE 1817, CRUSTACEAN)
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Abstract

Penaeid shrimp are important resources for worldwide fisheries and aquaculture. In Brazil, Farfantepenaeus brasiliensis, is an important commercially exploited species and an ideal animal for studying the impairment caused by the effects of heavy metals that are often detected in coastal areas. The main purpose of this study is to detect the acute toxicity of mercury to F. brasiliensis larvae, and to investigate its effects on oxygen consumption and ammonium excretion, which have not been carried out in this species before. We examined the acute toxicity Hg to F. brasiliensis larvae revealed at 24, 48, 72 and 96-h of exposure and the medium lethal concentration (LC50) values obtained were of 0.13 mg L−1; 0.054 mg L−1; 0.047 mg L−1 and 0.045 mg L−1, respectively. Furthermore, we also found that exposure of shrimp to Hg caused an inhibition in oxygen consumption of 53.42% lower than that of the control. However, after separate exposure to Hg, elevations in ammonium excretion were obtained, which were 217.64%, higher than the control.

EDISON BARBIERI, ELISANGELA A. PASSOS, and CARLOS A. B. GARCIA "USE OF METABOLISM TO EVALUATE THE SUBLETHAL TOXICITY OF MERCURY ON FARFANTEPANEUS BRASILIENSIS LARVAE (LATREILLE 1817, CRUSTACEAN)," Journal of Shellfish Research 24(4), 1229-1233, (1 December 2005). https://doi.org/10.2983/0730-8000(2005)24[1229:UOMTET]2.0.CO;2
Published: 1 December 2005
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