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Browsing by Author "Ojutiku R. O."

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Assessment of the Spatio-temporal environmental parameters of surface water in Gurara reservoir, Kaduna state, Nigeria
(International Journal of Fisheries and Aquatic Studies, 2019) Kolo Reuben Jiya; Iliya Auta Yohanna; Ojutiku R. O.; Arimoro F. O.; Mohammed A. Z.; Musa B. B.
Water is one of the main concerns in developing countries. In order to deal with this problem, an assessment of the spatio-temporal environmental parameters of surface water of Gurara Reservoir in Kaduna State was studied for twelve months from (March 2017-February, 2018). The physico-chemical parameters were determined monthly using standard methods. They includes water and air temperature, pH, Dissolved oxygen (DO), biological Oxygen demand (BOD), Nitrate (No3-N), phosphorus (Po4-P), Total Hardness (TH), Potassium (K), Sodium (Na), Total dissolved Solid (TDS) and depth. All results were analyzed using descriptive analysis and analysis of variance (ANOVA). Principal component analysis (PCA) was use to correlate the physico-chemical variables among the stations and months. All the parameters fluctuate between the stations. These was mostly noted within the seasons and most of the values increase as a results of influx of municipal waste, runoff from agricultural fields, herbicides and pesticides, deforestation and other chemicals. Although most of the environmental variable values recorded were within the standard permissible limits set by Nigeria Industrial Standard (NIS, 2007) and (WHO, 2014), few stations within the reservoir are inclined toward eutrophication, therefore, the conservation and management of this water body is very much required.
Composition and Dynamics of Some Nutrient and Physic-Chemical Parameter in Lower Course of Gwagwalada River in Federal Capital Territory, Abuja, Nigeria
(American Journal of Experimental Agriculture, 2014) Kolo Reuben Jiya; Ojutiku R. O.; Mbanaso C. A.
Aims: Jabi dam, Lower Usuma dam and Gwagwalada river in the Federal Capital Territory were studied for a period of twelve months (January 2007–December 2007) to determine their nutrient composition and dynamics. Methodology: Samples were collected from these water bodies on monthly basis. The concentration of some nutrient parameters such as Phosphate-phosphorus (PO4-P), Nitrate-Nitrogen (NO4-N), Total Dissolved Solids (TDS), Calcium (Ca), Potassium (K) and Sodium (Na) were assessed. The results obtained were statistically analysed to show any relationship amongst them. Results: The mean values for NO4-N, Ca and K were not significantly different (P>0.05) between the three water bodies. While the mean value for PO4-P were significantly different (P<0.05), with Jabi dam having the highest mean value of 11.61mg/l, followed by Gwagwalada river, 9.96mg/l and Lower Usuma dam had least mean value of 2.46mg/l. Jabi dam, Lower Usuma dam and Gwagwalada river had mean TDS of 95.0mg/l, 88.5mg/l and 104.5mg/l respectively, Gwagwalada river being significantly different (P<0.05) from Jabi and Lower Usuma dams. Similarly, Jabi dam, Lower Usuma dam andGwagwalada river had mean Sodium values of 2.42mg/l, 2.85mg/l and 3.73mg/l respectively, Gwagwalada river being also significantly different (P<0.05) from Jabi and Lower Usuma dams. PO4-P and NO4-N showed no significant (P>0.05) monthly variations in the three water bodies. However, TDS, Ca, K, and Na showed significant (P<0.05) difference in monthly variations in the three water bodies. TDS, Ca, K, and Na had all their wet season mean values higher than their dry season mean values in all the three water bodies studied, while PO4-P and NO4-N had their wet season mean values lower than the dry season mean values in the three water bodies. Conclusion: The study revealed that the nutrient parameters measured were slightly lower than the World Health Organization (WHO) recommended values for aquatic life.
Feeding Habits and Food Preferences of Auchenoglanis Occidentalalis from Tagwai Lake, Minna, Nigeria
(International Journal of Applied Biological Research, 2019) Kolo Reuben Jiya; Ojutiku R. O.; Tsadu S. M.; Chukwuemeka V. I.
The temporal variation in the food, feeding habits and food preference of Auchenoglanis occidentalis from Tagwai Lake, Minna, Nigeria were investigated from January 2013 to December 2014 using the frequency of occurrence method. In 2013, seven different food items were found in the diet namely; insect parts, plant materials, parts fish parts, protozoans, phytoplankton, sand particles and crustaceans. The same trend was observed in 2014. Insect materials were fed upon the most irrespective of year and season of sampling. When a comparison was done for both years using a T-test, the result revealed that insect parts valued about 24.00±2.00 in 2013 which was the highest value recorded while parts of fish had the highest frequency of occurrence in 2014 (22.50±3.50). The frequency of occurrence of protozoan for 2013 was 8.00±2.00 while that of 2014 was 11.00±2.00. From both years it is seen that although Auchenoglanis occidentalis from Tagwai Lake Minna is an omnivore, which fed on both plant and animal materials, it had tendency to feed more on animal materials.
Haematological effect of acute concentration of cypermethrin on juveniles of clarias gariepinus
(International Journal of Engineering Science Invention, 2013) Kolo Reuben Jiya; Ojutiku R. O.; Asuwaju F. P.; Obande R. A.; Agbelege O. O.
The experiment was conducted to evaluate the acute toxic of cypermethrin, a synthetic pyrethroids on juveniles of Clarias gariepinus. The effect was assessed based on the comparism results of haematology, examinations of control and experimental group exposed to five nominal concentration of cypavest, 10EC Pesticide Preparation (active substance 100mg/l) of cypermethrin in a static non- renewal bioassay for 96hours. Examination of haematology significantly showed higher value (P < 0.001; 0.01) of white blood cell (WBC), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), packed cell volume (PCV), monophilis and heterophilis; a significant reduction (P < 0.001, 0.01) in Red Blood Cell (RBC) and Lymphocyte was obtained as compared to the control.cypermethrin is therefore toxic to juveniles of Clarias gariepinus.
Relationship between fish species abundance and physico-chemical parameters of Tagwai Lake, Minna, Nigeria.
(Fisheries Society of Nigeria, 2020) Kolo Reuben Jiya; Ojutiku R. O.; Tsadu S. M.; Chukwuemeka V. I
The study was carried out to investigate the temporal variations, in terms of physico-chemical parameters as well as the fish species abundance in Tagwai Lake, Minna, Nigeria and establish a relationship between both parameters using Canonical correspondence analysis ,from January 2013 to December, 2014. The results of the physico-chemical parameters investigated revealed that the Dissolved Oxygen (DO) ranged from 6.60±0.75 (mg/l) to 12.7±0.66 (mg/l), in 2013 and 6.00±0.31 (mg/l) to 11.20±1.35 (mg/l) in 2014. The BOD ranged from 2.40±0.24 (mg/l) to 7.00±1.52 (mg/l) in 2013; and from 3.28±0.41 (mg/l) to 5.60±1.02 (mg/l) in 2014. The DO values in the rainy season months were significantly different (p >0.05) from those of the dry season months. A total of ten (10) species of fishes belonging to seven families were identified namely, Clariidae (Clarias gariepinus), Claroteidae (Chrysicthys auratus), Bagridae (Auchenoglanis occidentalis), Characidae (Alestes dentex), Mormyridae (Mormyrus hasselquistii) and Cichlidae (Sarotherodon galiliaeus, Tilipia zillii and Tilapia aurea, Hemichromis fasciatus, and Clupeidae (Odaxothrissa mento). Correlation between fish species and physico-chemical parameters revealed strong correlation of Tilapia galileae and Mormyrus hasselquistii with phosphate. Hemichromis fasciatus correlated strongly with nitrate, BOD and DO. Auchenoglanis occidentalis and Clarias gariepinus weakly correlated with pH. This indicate the influence of physico-chemical parameter on the domestication and productivity of the lake
Spatial Distribution of Phytoplankton and Physico-Chemical Characteristics of Reservoir Agaie-Lapai Dam, Minna, Niger State, Nigeria
(Journal of Biology and Life Science, 2016) Kolo Reuben Jiya; Ojutiku R. O.; Yakubu M. A.
Presence of phytoplankton displays water quality and useablity by aquatic life. Agaie-Lapai Dam located in Niger State (latitude 9⁰ 39N and longitude 6⁰33E) was constructed for irrigation purpose and also to serves as source of livelihood to fishermen living in surroundings. The objective of the present research was conducted to assess the distribution of phytoplankton and physic-chemical assessment of Agaie-Lapai Dam. Reservoir Water. Samples were collected fortnightly and analyzed for phytoplankton and physico-chemical parameters. The dissolved oxygen ranged from 3.8 – 5.15mg/l and temperature from 24.6 – 29.00C. A total of 14 species of 5 taxonomic groups were recorded. Bacillariophyceae was the most abundant group (44%) followed by Chlorophyceae (26%) while the lowest was Dinophyceae (8%). Phytoplankton abundances in the following descending order: Bacillariophyceae>Cyanophyceae>Chlorophyceae>Chrysophyceae>Dinophyceae.The spatial analysis revealed that phytoplankton was not equally distributed in the water that enabled it to function as productive water body. The observed physico-chemical parameters fell within thus it was within the tolerable limits. It is expected that the identified species will enhance fish productivity.
Toxicity and Histopathological Effect of Cypermethrin on Juveniles of Clarias gariepinus
(British Journal of Applied Science & Technology, 2014) Kolo Reuben Jiya; Ojutiku R. O.; Asuwaju F. P.; Obande R. A.; Agbelege O. O.
Aim: To study the toxicity and histopathological effects of Cypermethrin on the gill and liver tissues of the Clarias gariepinus. Place of the Study: It was carried out at the toxicology section of the of Water Resources, Aquaculture and Fisheries Technology Department, School of Agriculture and Agricultural Technology of the Federal university, Minna, Niger State, Nigeria. Methodology: The fish were exposed to six (6) acute concentrations (0.025mg/l, 0.050mg/l, 0.075mg/l, 0.100mg/l, 0.125mg/l and 0.000mg/l) for 96 hours. The histopathology of the gills and liver were determined and the LC50 was determined. Results: The 96 hours LC50 of the toxicant to the test fish was 0.060mg/L. The most common gill changes at all doses of cypermethrin in solution were destruction of gill lamella, epithelial hyperplasia and epithelial hypertrophy. Hepatic lesions in the liver tissues of fish exposed to Cypermethrin in solution were characterized by degeneration ofhepatocyte, vascuolization of cell cytoplasm, fatty degeneration and hypertrophy of hepatocytes. Histological comparison of tissues indicated that most damage occurred in the gill rather than in the liver. Conclusion: Juveniles of Clarias gariepinus exposed to various concentration of Cypermethrin showed that this synthetic pyrethroid was highly toxic to the Clarias gariepinus fingerlings with lethal concentration (LC50) of 0.060mg/l. Evidences of toxicity manifested significantly in the damages caused to the gills and liver studied. The severity of these damages to some selected organs in the body of the fish is proportional to the concentration of the pesticides.
Toxicity of Parkia biglobosa pod extract on Clarias gariepinus juveniles
(International Journal of Fisheries and Aquaculture, 2012) Kolo Reuben Jiya; Ojutiku R. O.; Avbarefe E. P.; Asuwaju F. P.
The toxicity of aqueous and ethanolic extracts of Parkia biglobosa pods (95, 85, 75, 65 and 55 mg/l) on Clarias gariepinus was investigated under laboratory condition over a 96 h exposure period. Fish exposed to both extracts exhibited clinical signs including eventual death but was not observed in the control fish. Weight change in fish was observed as well as the effect of the plant on the water parameters. However, clinical signs and death were more in fish exposed to the ethanolic extract. It was concluded that aqueous and ethanol extracts of P. biglobosa pods are toxic to C. geriepinus juveniles with the ethanol extract being more toxic, which shows that apart from the bark of P. biglobosa, the pods has piscicidal property and can be put into use in the control and management of fish ponds to eradicate predators by farmers.
Zooplankton Abundance and Diversity of River Kaduna and College of Agriculture and Animal Sciences Dam (CAAS) Kaduna, Nigeria
(Nigerian Journal of Fishries and Aquaculture, 2017) Kolo Reuben Jiya; Ojutiku R. O.; Habibu S.
The study was carried out to assess zooplankton and diversity and abundance of River Kaduna and College of Agriculture and Animal Sciences Dam (CAAS) Kaduna. Water samples were collected ones a month for the period of twelve months. Water samples were collected from four sampling stations each for Kaduna River and CAAS Dam. Samples were then taken to the lap for analyses and identification of organisms. The abundance of Zooplankton on College of Animal Sciences is from 26 families and total specie is 318, specie abundance for Dam during the the wet season was 147 and 192 in the dry season. For the River's abundance of zooplankton specie was 28 from 6 families and total species was 352 species abundance of river during the wet season was 140 dry season total specie in the river is 187.

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