Molecular acute toxicity of eight heavy metals to three marine fish species | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 7, Issue 2, June 1999, Pages 45-58 PDF (2.88 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.1999.462102 | ||
| Author | ||
| Ali A. H. Elsebae* | ||
| Dept. of Environ. Sciences, Faculty of Environ. Agric. Sciences, Suez Canal Univ. Alareesh, North Sinai | ||
| Abstract | ||
| Marine water solutions of aluminum chloride, cadmium chloride, lead nitrate, nickel nitrate, potassium chromate, stannous chloride, copper sulphate and zinc sulphate were compared for their 96hr acute toxicity LC50 against the three marine fish species Dicentrarchus labrex; Sparus auratus; and Solea vulgaris. Larvae of 25 days old of each fish species were used for the bioassay. Molar correction was needed to reach a more precise order of relative acute hazard. Accordingly, aluminum was found to be the most acute toxic to Dicentrarchus labrex; while tin was the most acute toxic to Sparus auratus, and lead was the most toxic to Solea vulgaris. The three marine fish species differed in their susceptibilities to the tested heavy metals. Solea vulgaris was shown generally to be the highly susceptible fish of the three tested species. It was concluded that multispecies screening will be more reliable to evaluate ecotoxicological hazards of heavy metals. Besides, molecular correction will be required to reach an accurate picture of relative acute toxic hazard in relation to chemical structure. | ||
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