Ibrahim, A., Sleem, S., Bahgat, F., Ali, A. (1997). EFFECT OF CERTAIN WATER POLLUTANTS ON THE BIOLOGY OF THE FRESHWATER CLAM CAELATURA ( UNIO ) AEGYPTIACA (BIVALVIA). Egyptian Journal of Aquatic Biology and Fisheries, 1(1), 47-65. doi: 10.21608/ejabf.1997.3367
Abdalla Ibrahim; Setaita Sleem; Fatma Bahgat; Amal Ali. "EFFECT OF CERTAIN WATER POLLUTANTS ON THE BIOLOGY OF THE FRESHWATER CLAM CAELATURA ( UNIO ) AEGYPTIACA (BIVALVIA)". Egyptian Journal of Aquatic Biology and Fisheries, 1, 1, 1997, 47-65. doi: 10.21608/ejabf.1997.3367
Ibrahim, A., Sleem, S., Bahgat, F., Ali, A. (1997). 'EFFECT OF CERTAIN WATER POLLUTANTS ON THE BIOLOGY OF THE FRESHWATER CLAM CAELATURA ( UNIO ) AEGYPTIACA (BIVALVIA)', Egyptian Journal of Aquatic Biology and Fisheries, 1(1), pp. 47-65. doi: 10.21608/ejabf.1997.3367
Ibrahim, A., Sleem, S., Bahgat, F., Ali, A. EFFECT OF CERTAIN WATER POLLUTANTS ON THE BIOLOGY OF THE FRESHWATER CLAM CAELATURA ( UNIO ) AEGYPTIACA (BIVALVIA). Egyptian Journal of Aquatic Biology and Fisheries, 1997; 1(1): 47-65. doi: 10.21608/ejabf.1997.3367
EFFECT OF CERTAIN WATER POLLUTANTS ON THE BIOLOGY OF THE FRESHWATER CLAM CAELATURA ( UNIO ) AEGYPTIACA (BIVALVIA)
1Ain Shams University, Faculty of Science, Zoology Department
2Ain Shams University, Faculty of Education, Dept. of Biological Science and Geology
Abstract
The present work is concerned with the effect of different concentrations of two heavy metals; lead and cadmium on Caelatura aegyptiaca (a Bivalve clam). This effect was indicated by assessing the mortality rates after 10 days exposure to certain concentrations, LC50 values, accumulation levels in ctenidia and foot tissues and their histopathological changes in the latter tissues due to the above exposure. The mortality rate was proportional to the concentrations of lead and cadmium in the test aquaria. The accumulated levels were higher in the ctenidia than in the muscle tissues and increased with raising the concentrations of the meta1 salts. The behavior of treated species during the experiment was abnormal indicating loss of equilibrium during swimming. Histological examinations of the ctenidia & muscles of the treated clam have revealed various degrees of histopathological changes.
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