US EPA

1516614 

Journal Article 

Studies on the impact of chromium on the marine gastropod Monodonta turbinata (toxicity, bioaccumulation, acclimation) 

Verriopoulos, G; Catsiki, AV; Pantelidou, A; Moraitou-Apostolopoulo, M 

1989 

93-94 

0 

103-118 

eng 

BIOSIS COPYRIGHT: BIOL ABS. In this study we examined some aspects (L C 50 48h, LT 50 and bioaccumulation) of the impact of chromnium (Cr+6) to the gastropod Monodonta turbinata. For the experiments we used animals whch had been exposed for different periods to 1 ppm of Cr (acclimated) and subsequently placed in clean sea water (detoxified). For non-acclimated gastropods the LC 50 is 51.9 ppm of Cr and for the acclimated ones it is 72.77 ppm of Cr. A statistically significant relationship was observed between the LT 50, acclimation and detoxification time. The observed concentrations of Cr in Monodonta tissues are related to exposure time, pollutant concentration and detoxification time. Finally, the present results strongly suggest that the acquired tolerance doesn't become a permanent characteristic of animals. 

ECOLOGY; OCEANOGRAPHY; MINERALS; NECROSIS/PATHOLOGY; MINERALS/METABOLISM; ENVIRONMENTAL POLLUTANTS/POISONING; OCCUPATIONAL DISEASES; AIR POLLUTION; SOIL POLLUTANTS; WATER POLLUTION; ANATOMY, COMPARATIVE; MOLLUSCA/PHYSIOLOGY; PHYSIOLOGY, COMPARATIVE; PATHOLOGY; MOLLUSCA; Biochemical Studies-Minerals; Metabolism-Minerals; Toxicology-Environmental and Industrial Toxicology; Public Health: Environmental Health-Air; Invertebrata; Gastropoda; 18540-29-9; 7440-47-3