ABSTRACT
Using standard procedure of analysis, heavy metal concentration value in the shell showed; Zn (32.02Mg/g) > Fe (12.5mg/g), Pb (6.20mg/g) > Cr (3.99mg/g) > Cd (0.31mg/g). The flesh showed Zn (8.77mg/g) > Fe (8.20mg/g) Pb (2.60mg/g) > Cr (0.43mg/g) Cd (0.03mg/g). In both shell and flesh, the concentration of Cr, Fe and Pb were higher than WHO standard.
TABLES OF CONTENTS
CONTENTS PAGE
Title Page – – – – – – – – – i
Certification – – – – – – – – ii
Dedication – – – – – – – – – iii
Acknowledgements – – – – – – – iv
Abstract – – – – – – – – – v
Table of Contents – – – – – – – – vi-vii
CHAPTER ONE
- Introduction – – – – – – – 1
- Background of the Study – – – – – 1-3
- Aims and Objectives of the Study – – – – 4
- Scope and Limitation – – – – – – 4
- Definition of Terms – – – – – – 4-5
CHAPTER TWO
- Literature Review – – – – – – – 6
- Morphology of Egeria radiate – – – – – 6
- Feeding habit of Egeria radiate – – – – – 6-7
- Reproduction of Egeria radiate – – – – – 7-8
- Distribution of Bivalve – – – – – – 8-10
- Food use of Bivalve – – – – – – 10-11
- Conchological importance of Bivavle – – – 11-13
- Importance of some Heavy Metal – – – – 13-20
CHAPTER THREE
- Material and Method – – – – – – 21
- Study Area – – – – – – – – 21-22
- Methodology – – – – – – – 22
- Sample Collection – – – – – – – 22-23
3.2.2 Treatment and Analysis of Sample – – – – 23
CHAPTER FOUR
- Results and Discussion – – – – – – 24
- Results – – – – – – – – 24
- Discussion – – – – – – – – 25
CHAPTER FIVE
- Summary, Conclusion and Recommendation – – – 27
- Summary – – – – – – – – 27
- Recommendations – – – – – – – 27
Reference
CHAPTER ONE
1.0 Introduction
1.1 Background Information Pollution of the littoral waters of the Niger delta region of Nigeria has in recent times received much alteration because of the high degree of environment degradation and aquatic perturbations posed by petroleum exploration activities in the oil bearing states. Petroleum hydrocarbons from oil spills and human related activities are usually incorporated into sediments where they can persist for years, gradually releasing toxic substance such as heavy metals into the immediate and remote environment (O’Clar et al., 1996; Moles and Norcoss, 1998, Zabby and Babatunda, 2015). Heavy metals distribution in aquatic ecosystems present divergent dynamics depending on such factors as source, flow rates, particle flux rate, sediment characteristics and ecology of organisms under study. In the Niger delta, most report agree that heavy metal concentration is low in surface water sample (Davies et al., 2004. Chindah et al., 2006). Sediment on the other hand is believed to be the sink for heavy metals, which usually allows re-suspension anytime the river is disturbed (Babatunda et al., 2013).