Effects of temperature on the acute toxicity of heavy metals (Cr, Cd, and Hg) to the freshwater crayfish, Procambarus clarkii (Girard)
Chromium, an essential trace element for humans and animals is involved in normal carbohydrate metabolism; however, it is toxic at high concentrations. There is no evidence that cadmium and mercury are biologically essential but their toxicity for organisms is well known. Both cause toxic effects at low concentrations to most organisms, especially in combination with other environmental variables such as temperature. Lake Albufera and the surrounding rice field waters are subjected to very heavy loads of sewage and toxic industrial residues (including heavy metals) from the many urban and waste waters in this area. In 1978, the American red crayfish Procambarus clarkii appeared in lake Albufera and in the surrounding rice fields. Without adequate sanitary control, the crayfish is presently being fished commercially for human consumption. The purpose of the present study is to evaluate the degree of toxicity of various heavy metals (chromium, cadmium and mercury) to freshwater crayfish Procambarus clarkii at various temperatures.
- Research Organization:
- Univ. of Valencia, Spain
- OSTI ID:
- 5711960
- Journal Information:
- Bull. Environ. Contam. Toxicol.; (United States), Vol. 38:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DECAPODS
TEMPERATURE EFFECTS
METALS
TOXICITY
BEHAVIOR
CADMIUM CHLORIDES
CHROMIUM COMPOUNDS
MERCURY CHLORIDES
MORTALITY
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
CADMIUM COMPOUNDS
CADMIUM HALIDES
CHLORIDES
CHLORINE COMPOUNDS
CRUSTACEANS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
INVERTEBRATES
MERCURY COMPOUNDS
MERCURY HALIDES
TRANSITION ELEMENT COMPOUNDS
560300* - Chemicals Metabolism & Toxicology