International Journal of Aquaculture, 2018, Vol.8, No.4, 23-28
26
which indicated positive and no colour change, no ring formation and no gas production that indicated nagative
results
The results of biochemical tests of bacteria were summarized in Table 4. According to the results, species of
bacterial commination species were isolated from the studied samples that collected from the Shatt Al-Arab River,
south Al- Qurna city to fecal pollution in those areas, as well as to the sewages and lack the good treatment of
waste before split the water into the river. These results were agreed with Abed et al. (2016) who diagnosed
different bacterial species; which included
Escherichia coli
,
Enterobacter aerogenes
,
Salmonella spp
,
Klebsiella
pneumonia
,
Proteus mirbalis
,
Proteus vulgaris
,
Pseudomonas aeruginosa
,
Staphylococcus aureus
,
Staphylococcus epidermids
,
E. coli
represented the main bacteria as compared with others bacteria in Euphrates
River in Samawah city. Alkanany et al. (2017) who studied bacterial contamination by means of use the indicators
bacteria (total and fecal coliforms) for samples of the Shatt al-Arab estuary and he was found highest bacterial
contamination levels in Al-Ashar's river while the lowest levels were recorded in Al-Sarragi's river.
In this study, it can be concluded that found the biological pollution in Shatt Al-Arab south Al-Qurna city due to
the pollution in al-Qurna area, high percentage of bacteria in al-Qurna area.
E. coli
is the highest bacteria present
in the Shatt Al-Arab water due to an organic pollution, increase in concentrations of heavy metals in Tigris River
north Al-Qurna city specifically in iron concentrations in Al-Qurna city.
Authors’ contributions
All authors in this paper have contributed equally toward the publication of this paper. All authors read and approved the final
manuscript.
Acknowledgements
We would like to thank the members of the Marine Biology Department, Marine Sciences Center, Basrah University, for help me in
accomplishing this work and for their valuable advice and suggestions.
