Acute toxicity and synergism of cadmium and zinc in white shrimp, Penaeus setiferus, juveniles

Juvenile white shrimps (Penaeus setiferus) were exposed to cadmium and zinc chloride solutions at different salinities, pH 8.3 and 23C with adequate dissolved oxygen concentrations. Metals were determined by atomic absorption spectrometry. The 96-h median lethal concentrations for cadmium and zinc s...

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Bibliographic Details
Published inBulletin of environmental contamination and toxicology Vol. 58; no. 1; pp. 87 - 92
Main Authors VANEGAS, C, ESPINA, S, BOTELLO, A. V, VILLANUEVA, S
Format Journal Article
LanguageEnglish
Published New York, NY Springer-Verlag 1997
Springer Nature B.V
Subjects
Acute toxicity
Aging - physiology
Animal, plant and microbial ecology
Animals
Applied ecology
Biological and medical sciences
Cadmium
Cadmium - toxicity
Drug Synergism
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on protozoa and invertebrates
Fundamental and applied biological sciences. Psychology
Lethal Dose 50
Marine
Penaeidae - physiology
Penaeus
Species Specificity
Synergism
Zinc - toxicity
Gulf of Mexico
ASW, Mexico Gulf
Cadmium
Poison interaction
Penaeus setiferus
Toxicity
Acute
Mortality
Synergism
Toxic association
Coastal lagoon
Zinc
Macrura
Heavy metal
Crustacea
Marine environment
Pollutant
Arthropoda
Decapoda
Invertebrata
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Summary:Juvenile white shrimps (Penaeus setiferus) were exposed to cadmium and zinc chloride solutions at different salinities, pH 8.3 and 23C with adequate dissolved oxygen concentrations. Metals were determined by atomic absorption spectrometry. The 96-h median lethal concentrations for cadmium and zinc separately were 0.99 and 43.87 mg per litre, respectively; similar values were obtained over 48 h. A toxicity ratio was defined as the cadmium concentration:the 96-h LC50 compared with the same expression for zinc concentrations. Cadmium in combination with zinc increased toxicity 4-6 times as the toxicity ratio increased. Similarly, zinc toxicity was 5-7 times greater than its LC50 for a toxicity ratio of 1, rising further as the latter increased. Combinations of these metals thus exhibited synergism whose extent depended on the ratios of the metals in the mixtures.
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ISSN:0007-4861
1432-0800
DOI:10.1007/s001289900304