Document Details
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Document Type |
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Thesis |
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Document Title |
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STUDY OF THE POLLUTION EFFECT ON DISTRIBUTION OF DIATOM NUMBERS AND SPECIES IN THE MARINE HABITAT دراسة أثرالتلوث على توزيع أعداد وأنواع الداياتومات فى البيئة البحرية |
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Subject |
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Faculty of Sciences |
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Document Language |
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Arabic |
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Abstract |
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Study of the pollution effect on distribution of diatom numbers and species in the marine habitat By Fahd Althubaiti Abstract This study was conducted in the southern Corniche of the Red Sea coast next to the Central Fish Market of Jeddah, a semi-polluted area of fish wastes, industrial equipment and human waste during the period between spring 2014 to winter of 2015. The study aimed at identifying the diatoms in this area and use them as a marker of pollution as well as identifying the environmental conditionsas detected by the physical and chemical properties of the area. This area has been selected because it is the main source of fish import and distribution in Jeddah and the occurrence of water pollution next to it. Five sites were identified for sampling as the following: site (1) is located in coordinates (N21o29’45), site (2) with coordinates (N21o29’1),site (3) with coordinates (E39o10’29),site (4) with coordinates (E39o09’30) and site (5) with coordinates (N21o29’22). The highest numbers of cells were recorded in spring at all sites (sites 1 to 5) as follows: 10,485,714, 50,900,000, 36,850,000, 12,462,962 and 20,346,666 cells/l, respectively. As per temperature and light intensity, there was no differencesamong locations. Nutrient salts recorded the highest rates at site (3), where nitrates, nitrite, phosphates and ammonia recorded averages of 11.95, 1.35, 3.01 and 8.21 mg/l, respectively. In general, the concentrations of nutrients decrease as we move away from the source of pollution. For heavy metals, zinc recorded its highest level in the fall, reaching 1.275 mgat site (1), while the lowest concentration of 0.2565 mg was recorded in spring at site (5). For cadmium, the highest concentration of 0.59 mg was recorded in the spring at site (2) and the lowest concentration of 0.071 mg was recorded in winter at site (3). Mercury concentrations were not available at all sites. |
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Supervisor |
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Dr. Fahd El Fassi |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1439 AH
2018 AD |
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Added Date |
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Monday, July 23, 2018 |
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Researchers
| فهد عيضة الثبيتي | Althubaiti, Fahd Ayda | Researcher | Master | |
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