Key Features:

Number of Pages: 72
Number of Chapter: 5

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Abstract:

The phytoplanktons found in the Federal University of Technology Akure (FUTA) was studied from April to August 2017 which spanned for 5 months which took place in two sampling sites, the Fisheries and Aquaculture Technology Research Farm pond (FAT pond) was the first sampling station while Crop Science and Pest Management water body was the second sampling water body where samples were collected at different sampling depths ranging between 16-30cm. A hundred and fifty (150cl) of FUTA water samples were collected in each month throughout the study period.

Fourteen (14) species of phytoplanktons were identified as aggregate in the two sampling sites, consisting of Bacillariophyta (10), Chlorophyta (2), Dinophyta (1), Mediophyta (1). The total phytoplankton density in the Crop Science and Pest Management water body increased from a total population of 44 in the fourth month to a total population of 50 in the fifth month while in the Fisheries and Aquaculture Technology (F.A.T) pond the increment started in the third month with a total population of 41 to 61 in the fifth month. Temperature, pH and dissolved oxygen and conductivity ranged from 23.84°c to 29.40°c; 6.61 to 7.14, 3.08 to 5.35 mg/L and 106.18 to 195.78 µscm respectively.

Navicular sp was the most dominant phytoplankton specie with a total of 120 observations followed by Coscinodiscus and Ceratia which occurred with 113 and 68 respectively while the species with the least number of appearances were Liemophora and Pinnularia with 4 and 3 occurrences respectively.

Changes in temperature, conductivity, pH and dissolve oxygen had an effect on phytoplankton abundance resulting in an increase and decrease in the number of phytoplankton species. However, the result found cannot necessarily deduce the long-term biological events and processes of the water bodies. Since the study was done in a period of five months which is not sufficient for concluding the results.

Table of Content:

Cover Page i
Title page ii
Certification iii
Dedication iv
Acknowledgement v
Table of Contents vi
List of Tables vii
List of Figures viii
Abstract ix
CHAPTER ONE
1.0 General Introduction of water bodies in Nigeria 1
1.1 Experimental site 6
1.2 Justification 9
1.3 Aims and Objectives of the Study 9
CHAPTER TWO
2.0 Literature Review 102.1 Oxygen production 11
2.2 Growth strategy 12
2.3 Phytoplankton Occurrence and Distribution 13
CHAPTER THREE
3.0 Materials and Method 15
3.1 Study Duration 15
3.2 Bottle Sampling Method 15
3.3 Sample preservation and handling 16
3.4 Labelling 16
3.5 Equipments used 17
3.6 Supplies used for identification 17
3.7 Analytical Procedure 18

3.7.1 Water Analysis 18
3.7.2 Identification of phytoplankton 18
3.8 Statistical Analysis 19
CHAPTER FOUR
4.0 Results 21
4.1 Diversity and Abundance of Phytoplankton Species in FUTA environs 21
4.2 Classification of phytoplankton in FUTA environs 24
4.2.1 Abundance of (no. of individuals) phytoplanktons in Fisheries & AquacultureTechnology research pond 27
4.2.2 Abundance of (no. of individuals) phytoplanktons in Crop Science & PestManagement research farm water body 28
4.3 Abundance of Phytoplankton in Both Water Sources for 5 Months 30
4.4 Diversity indices of FUTA Environs Water Body 33
4.5 Abundance of phytoplankton in both water sources for 5 months 35
4.6 Influence of water factors on Phytoplankton Species Abundance 37
4.6.1 The relationship between pH and phytoplankton species abundance 38
4.6.2 The relationship between water, pH and phytoplankton species abundance 39
4.6.3 The relationship between D.O and phytoplankton species abundance 40
4.6.4 The relationship between temperature and phytoplankton species abundance 41
4.7 Water parameters for the Waterbodies of FUTA Environs During the Study 42
4.8 Physico-chemical variables of each water parameter and concentration in the waterbodies of FUTA environs during the study 44
CHAPTER FIVE
5.0 Discussion 46
5.1 Abundance of Phytoplankton species 46
5.2 Environmental factors relationship with phytoplankton abundance 47
5.3 Diversity and Abundance of phytoplankton species 48
5.4 Conclusion 50
5.5 Contribution to knowledge 50
REFERENCE
APPENDIX

LIST OF TABLE
Table 1: Major inland water resources of Nigeria 3
Table 2: Distribution and extent of Nigerian fresh waterbodies 4
Table 4.1: Occurrence of phytoplankton in sampling stations for each month in environs 22
Table 4.2: Showing classification of all phytoplankton species found 25
Table 4.2.1: Abundance of (no. Of individuals) phytoplanktons in fisheries & aquaculture technology research pond 27
Table 4.2.2: Abundance of (no. Of individuals) phytoplanktons in crop science & pest management research farm water body 28
Table 4.3: Abundance of phytoplankton in both water sources for months 31
Table 4.4: Diversity indices of Futa environs water body 34
Table 4.6: Summary for regression analysis of variance for phytoplankton abundance 37
Table 4.7: Water parameters for the waterbodies of futa environs during the study 42

List of figure Figure 1: Hydrological map of Nigeria showing the major inland waters 5
Figure 2: Abundance of phytoplankton in both water sources for 5 months 36
Figure 3: The relationship between conductivity and phytoplankton species abundance 38
Figure 4: The relationship between water ph and phytoplankton species abundance 39
Figure 5: The relationship between dissolved oxygen and phytoplankton species abundance 40
Figure 6: The relationship between temperature and phytoplankton species abundance 41
Figure 7: Water parameters for the waterbodies of Futa environs during the study 43
Figure 8: Physico-chemical variables and concentration in the water bodies in futa environs during the study 45