A Study on Heavy Metal Pollutants in Water and Tilapia at Lake Temsah | ||
| Suez Canal Veterinary Medical Journal. SCVMJ | ||
| Article 22, Volume 20, Issue 1, June 2015, Pages 287-306 PDF (1.85 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/scvmj.2015.65065 | ||
| Authors | ||
| Ismaeil Eissa1; Hassan Derwa1; Mona Abdelwahab2; Mohamed Wafeek3; Shimaa Fakhry* 2 | ||
| 1Dept. of Fish Diseases and Management, Fac. of Vet. Medicine, Suez Canal Univ . | ||
| 2Animal Health Research Institute, Ismailia branch. | ||
| 3Central lab. for Aquaculture Research, El-Abbassa. | ||
| Abstract | ||
| A total of 120 Oreochromis niloticus were collected randomly and seasonally. Fish were examined freshly from western lagoon (Berket El-Siadin) which is branch from Lake Temsah in Ismailia governorate .the result revealed that post mortem lesions in liver was in the form of pale and enlargement in some cases, while in other cases showed variable degrees of congestion and hemorrhage spots. Spleen was dark in color and enlarged, kidneys appeared congested and the gall bladder was full and distended. The periodic difference of heavy metals concentration based on the data of water samples gathered from the same lagoon showed the following manner as: summer > autumn >winter. The results revealed the presence of metals in the following order: Fe > Cu >Pb > Zn > Cd. The concentration of heavy metals in fish liver, gills and musculature were always higher than of the water, indicating the bioaccumulation. The highest concentration of heavy metals in water and fish tissue was associated with the lowest RBCs count, Hb, PCV, leukocytosis, hypoproteinemia and elevation in serum AST and ALT levels than normal. So, there is accumulating evidence that some heavy metals are immunosuppressive and fish may be more exposed to disease. | ||
| Keywords | ||
| Oreochromis niloticus; Berket El-Siadin; Lake Temsah; Heavy metals; blood parameters | ||
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