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Abstract

The following research was conducted to study the concentration of Ni and Cd in skeletons and sediments of dominant hard corals families (Faviidae and Poritidae) in Zeyton Park, Naz Islands and Shib-deraz stations, South of Qeshm Island- Persian Gulf. The analysis of these heavy metals in digested samples of skeletons and sediments was done applying Graphite furnace Atomic Absorbtion Spectophotometry for measuring the levels of Cd and Flame Atomic Absorbtion Spectophotometry for measuring the levels of Ni. The results indicated that there are significant statistical differences toward concentration of Ni in skeletons of corals families (Faviidae and Poritidae) among Zeyton Park, Naz Islands Shib-deraz stations (P<0.001). Moreover, in terms of Cd concentration in skeleton tissue of Favidae coral, there are significant differences among Zeyton Park, Naz Islands and Shib-deraz stations (P<0.001). In addition, considering the concentration of Ni and Cd in sediments of corals families (Favidae and Poritidae) there are significant differences between Zeyton Park, Naz Islands and Shib-deraz stations stations (P<0.05 and P<0.001 respectively). There is negative correlation between Ni concentration in Favidae corals and its surrounding sediments in Shib-deraz stations. Besides, there is statistical correlation of Cd concentration between corals families (Faviidae and Poritidae) in each stations. Long term pollution monitoring by heavy metals is of great importance in managing coastal areas. So, concerning the immense importance of coral ecosystem in southern Qeshm Islands and the result of this research, corals can be suggested as a pollution biomonitor. Key words: Heavy metals, Nickel, Cadmium, Coral, Sediment, Qeshm Islands, Persian Gulf Hormozgan University
Faculty of Science

Title:
Bioaccumulation of Heavy Metals(Ni, Cd) in Skeletons and Sediments of dominant Hard Corals in south of Qeshm Island- Persian Gulf

By :
Reza Bagherzadeh

Under Supervision of:
Professor Alireza Riyahi Bakhtiari

A thesis submitted to the Graduate Studies Office In partical fulfillment of the requirements for The degree of Master of Scince in Marine Biology

September 2011

1 parts per thousand
2 Group of Experts on the Scientific Aspects of Marine Environmental Protection
3 Heavy metals
4Trace Elements
5 Cocolithofor
6 Nickel
7 Cadmium
8 Indicator
9 Biomarker
10 Coral Reefs
11 United Nations Environment Programme
12 Bleaching
13 Reef-Building Corals
14 Up wellig‏
15 Patch Reefs‏
16 Bank Reefs‏
17 Barrier Reefs‏
18 Fringing Reefs‏
19 Atolls
20 Hermatypic
21 Ahermatypic
22 Polyp
23 Mesogelia
24 Pharynx‏
25Zooxanthellae
26 Scleractinia
27 Corallite
28 Corallum
29 Calyx
30 Septa
31 Costa
32 Theca
33 Columella
34 Paliform
35 Paliform crown
36 Coenosteum
37 Calcification
38 Eutrification
39 Snorkling
40 Crown-of-Thorns
41 Surface Sea Temperature
42 Bioturbation
43 Aragonite
44 Self Contained Underwater Breathing Apparatus
45 Global Positioning System
46 Stereo microscope
47 Multi meter
48 Micro pipette
49 Disposable plastic tip
50 Micro tube
51 Poly Tetra Fluoro Ethylene
52 UltraSonic
53Dithizon method
54 Atomic Absorbtion Spectophotometry
55 Anonodic Stripping Voltametry
56 Emission Spectroscopy
57 X- Ray Fluorescence
58Neutron activation

59Flame
60 Graphite furnace
61Spectral limitation
62 Ionization limitation
63 Chemical limitation
64 Graphite furnace atomic absorbtion
65 Flame atomic absorbtion
66 ppm (part per million)
67 ppb (part per billion)
68 Operation
69 Drying
70 Ashing
71 Atomizing
72 Detect
73 Blank
74 Standard Deviation
75 Range
76 One-Way Anova
77 Practical Salinity Unit
78 Anti fouling
79 Diagenetic
80 Coordination
81 Polycyclic Aromatic Hydrocarbons
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