Document Details
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Document Type |
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Thesis |
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Document Title |
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"COMPARISON OF PHYTOPLANKTON DYNAMIC BETWEEN LAGOON AND THE RED SEA COAST, AND ISOLATION OF SOME "مقارنة ودراسة ديناميكية العوالق النباتية البحرية بين البحيرات وساحل البحر الحمر , وعزل بعض النواع لدراسة النشطة الحيوية" |
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Subject |
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Faculty of Marine Sciences |
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Document Language |
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Arabic |
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Abstract |
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Yanbu is considered one of the most important industrial and tourist city on the eastern side of the Red Sea coast. There is an expansion in the modern facilities and industries where there is a port for the transport and export of petroleum products, different industries, as these activities and expansion can affect the coastal environment. The first affective organisms will be the phytoplankton as they are the biological indicator of water pollution. Therefore, a study on phytoplankton was conducted at Yanbu lagoon seasonally from spring to summer 2016-2017. The main objectives of this study were to find out the seasonal dynamics of phytoplankton community composition, phytoplankton abundance and chlorophyll a in relation with dynamic seasonal changes of physicoal-chemical factors. The whole lagoon was intersect in 6 stations for the study, among them 5 stations (St. 1st, 2nd, 3rd, 4th and 5th1-5) were located inside the lagoon and station 6th was on inlet between lagoon and the Red Sea. Water temperature varied from 22.00C to 33.30C (average of 26.90C), and salinity from 34.60 to 37.10 (average 35.81). Chlorophyll a concentration was fluted 0.07 - 2.20 mg.m-3 (average of 0.39 mg.m-3). A total of 168 phytoplankton species were identified, among them 94 belong to Bacillariophyceae, 69 Dinophyceae, 3 Cyanophyceae, 1 Chlorophyceae and 1 Mediophyceae. Cells Phytoplankton abundance varied from 2.34103 to 12.07103 cells. L-1 ,(average of 6.78103 cells. L-1) and the highest and lowest were in spring and winter, respectively. Bacillariophyceae contributed (54.95%), flowedfollowed by Dinophyceae (40.07%), Cyanophyceae (3.79%), Chlorophyceae (0.60%) and Mediophyceae (0.60%) of total phytoplankton. And, Aamong in Bacillariophyceae, the pennales and centrales constituted were 32.34% and 22.28%, respectively. Phytoplankton abundance exhibited positive correlation with chlorophyll a in spring, summer and autumn (r = 0.64, r = 0.59 and r = 0.66), respectively. |
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Supervisor |
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Dr. Mohammad A. Baakdah |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1441 AH
2019 AD |
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Added Date |
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Thursday, October 24, 2019 |
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Researchers
| زياد ابوبكر باقازي | Bagazi, Ziyad Abubakr | Researcher | Master | |
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