STUDIES ON BACTERIAL POLLUTION IN LAKE MANZALA

Document Type : Original Article

Authors

1 Dept. Food Sci., & Tech., Faculty of Agric. Sana’a University, Repndlic of Yemen

2 - Dept. Research and Product Development, YCIC,Taiz, Republic of Yemen

3 Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt.

4 Biological Sciences Department, Faculty of Education, Suez Canal University, Port Said, Egypt

5 Botany Department, Faculty of Science, Mansoura University, Damietta, Egypt

Abstract

 
Lake Manzala in Egypt have shown great changes in water properties including pH (7.4 to 8.4), total suspended solids (19 to 350 mg/l), total dissolved salts (1578 to 33480 mg/l), dissolved oxygen (2.25 to 8.45 mg/l), ammonia (0.00 to 44.8 mg/l) and nitrate (0.00 to 8.96 mg/l). In addition there has been quite high bacterial density in water and fish of the lake, including total viable bacterial counts and indicator organisms such as total coliforms, faecal coliforms and some other organisms such as Aeromonas spp., Vibrio spp. and Staphylococcus spp. However, the magnitude number of bacteria in water and fish was found to vary sometimes considerably and sometimes slightly depending on the site of sampling. Our results herein showed that LakeManzala is highly contaminated.

Keywords

Arab Universities Journal of Agricultural Sciences
Volume 14, Issue 1
March 2006
Pages 105-119

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