Document Details
|
Document Type |
: |
Thesis |
|
Document Title |
: |
Studying the concentrations of some heavy metals in the bivalve Tridacna maxima, including mapping indicating its distribution by using Remote Sensing (RS) and GIS, along Jeddah Coast, Red Sea دراسة تراكيز بعض العناصر الثقيلة في ثنائية المصراع Tridacna maxima، متضمنا رسم خرائط توضح توزيعها وذلك باستخدام الاستشعار عن بعد ونظم المعلومات الجغرافية، على ساحل مدينة جدة، البحر |
|
Subject |
: |
Faculty of Marine Sciences - Marine Biology |
|
Document Language |
: |
Arabic |
|
Abstract |
: |
This study assessment the variations of heavy metals concentrations (Cd, Cu, Fe, Zn, Pb) which involves the Adductor muscle tissue of Tridacna maxima, sediment and seawater, in addition, measurements of some physical properties of seawater such as, Temperature, Salinity, Dissolved Oxygen, Degree of the acidity or the alkalinity of a solution, Total Dissolved Solids and Specific Conductivity, at four coastal sites in Jeddah District along the Saudi Arabia Red Sea Coast (Al-Badee, Saroom, Thuwal and Al-Shoaibah) during the seasons of the year 2009. The study showed that there's been a significant different of the concentration of heavy metals in the tissue (mg/kg dry weight), on the basis of temporal and spatial variations.
In the spatial variations, the highest concentrations were detected in Al-Badee for Cd (0.414 mg/kg) and Zn (7.579 mg/kg), while the highest concentrations of Fe (8.830 mg/kg) and Pb (3.286 mg/kg) were recorded in Al-Shoaibah. On the other hand, the highest concentration of Cu was observed in Thuwal (1.342 mg/kg). Meanwhile, in the temporal variations, autumn was observed to be as the highest concentrations of Cd (0.429 mg/kg) and Cu (1.740 mg/kg), while summer was the highest concentrations for Fe (12.800 mg/kg) and Zn (12.086 mg/kg), and for Pb, the highest concentration was detected in spring (3.037 mg/kg). However, the significant differences of the temporal and spatial variations were (p ≤ 0.01).
For sediments, the highest concentrations of Pb, Cu, Zn and Fe were recorded in Saroom (24.464 mg/kg), (3.077 mg/kg), (31.084 mg/kg) and (409.850 mg/kg) respectively, while Al-Shoaibah for Cd (5.177 mg/kg).
Meanwhile in seawater, Thuwal had the higher concentrations of Fe (0.352 mg/l), Pb (0.207 mg/l) and Cd (0.142 mg/l), while Al-Badee was the highest for Cu (0.072 mg/l) and Zn (0.071 mg/l).
In addition, the population density of T.maxima was estimated, which showed there's been a significant differences (p ≤ 0.01) on the basis of the spatial variation. Thuwal was considered to be of the highest population density (105 / 2 km2).
However, the results of this study had been correlated with Remote Sensing (RS) and Geographical Information System (GIS). The Satellite images of IKONOS had been used for the four sites, to produces maps which display the sources of heavy metals also the distribution of T.maxima and the factors that had an impact on its density. |
|
Supervisor |
: |
Dr. Hassan Abdulhammed Jastania |
|
Thesis Type |
: |
Master Thesis |
|
Publishing Year |
: |
1432 AH
2011 AD |
|
Co-Supervisor |
: |
Dr. Rashad Azdy Bantan |
|
Added Date |
: |
Saturday, September 17, 2011 |
|
Researchers
| فواز عدنان فالوده | Falodah, Fawaz Adnan | Researcher | Master | |
|
Back To Researches Page
|