FISH FAUNA AND PHYTOPLANKTON POPULATION IN RELATION TO PHYSICO-CHEMICAL PARAMETERS OF GWAIGWAYE RESERVOIR KATSINA STATE, NIGERIA
FISH FAUNA AND PHYTOPLANKTON POPULATION IN RELATION TO PHYSICO-CHEMICAL PARAMETERS OF GWAIGWAYE RESERVOIR KATSINA STATE, NIGERIA
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Date
2015-10
Authors
NURA, Lawal
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Abstract
The Studies on fish fauna and phytoplankton population in relation to physico-chemical
parameters of Gwaigwaye reservoir, Katsina State, Nigeria was carried out from May
2013 to April 2014; to establish physical, chemical, and biological parameters
(Phytoplankton and Fish Population) of Gwaigwaye reservoir. Four sampling stations
were chosen; the physico-chemical and biological parameters were determined using
standard methods and procedures. The result revealed that; Water temperature (25.02 ±
0.170C) pH (7.54 ± 0.03), Alkalinity (3.69±0.09), Conductivity (129.43 ± 5.15μЅ/cm),
Total Dissolved Solids (50.54 ± 0.57mg/L) Nitrate-nitrogen (0.21 ± 0.04mg/L), Water
hardness (134.44 ± 3.06mg/LCaCO3), Dissolved Oxygen (3.98 ± 0.10mg/L),
Biochemical Oxygen Demand (2.53 ± 0.08mg/L), Phosphate-phosphorus (0.19 ±
0.02mg/L),Chloride (5.09 ± 0.15mg/L),Sulphor-sulphate (0.21± 0.01) and Calcium
(2.97±0.06mg/L) varied with months and seasons. Analysis of variance indicated
significant difference between seasons (P < 0.05); but no significant difference in fish
fauna, phytoplankton distribution and abundance among the four stations (P>0.05). The
result indicated phytoplankton percentage composition as; Chlorophyta (57.66%),
Bacillariophyta (25.70%), Cyanophyta (14.73%), and Dinophyta (1.91%) while Fish
fauna percentage composition were Tilapia zilli (17.32%), Clariasgariepinus
(16.17%),Oreochromisniloticus (15.27%),Latesniloticus (13.80%), Bagrus. bayad
(12.91%), Momyrussenegalensis (9.90%), Labeosenegalensis (7.41%) and
Synodontisclarias (7.28%). Water quality of the reservoir is influenced by anthropogenic
activities,the reservoir water is suitable for irrigational and domestic purposes from the
results of most of the physico-chemical and biological parameters obtained. Hence, there
is need for an effective anthropogenic inputs control programme in the reservoir.
Description
A THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES,
AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILMENT OF THE
REQUIREMENTS FOR THE AWARD OF A MASTER DEGREE IN BIOLOGY.
DEPARTMENT OF BIOLOGICAL SCIENCES,
FACULTY OF SCIENCE
AHMADU BELLO UNIVERSITY, ZARIA
NIGERIA
Keywords
FISH FAUNA,, PHYTOPLANKTON POPULATION,, RELATION,, PHYSICO-CHEMICAL PARAMETERS,, GWAIGWAYE RESERVOIR,, KATSINA STATE,, NIGERIA