NSUK Repository :: Browsing by Author "Banyigyi, A.H."

Browsing by Author "Banyigyi, A.H."

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Open Access
Aspects of Physico-Chemical Parameters of Bodna River in Kwali Area Council Abuja, Nigeria
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2019-03-04) Sani, B.M.,; Okunsebor, S.A.; Banyigyi, A.H.
In this study, the Bodna River was analyzed for some physicochemical parameters. The main aim of the study was to determine the effect of human activities on the physical, chemical and biological properties of the river, and to enhance systemable usage for conservation and management. The water quality parameters examined were Temperature, pH, Transparency, Salinity, Total dissolved solids (TDS), Dissolved oxygen (DO) and Electrical Conductivity (EC) for the four sampling stations from May 2018 to April 2019. There was no significant difference (p>0.05) in the pH values of the river ranging between (7.16 to 7.20) in all the sampling stations. The Analysis of Variance (ANOVA) showed significance differences (p<0.05) in other parameters across the months. The result showed that air temperature ranged from 32.10±0.73 to 36.15±0.l7^°c, water temperature from 30.20±0.94 to 34.30±0.22°c, transparency ranged front 5.9±0.6lcm to I8.7±6.l7cm, Salinity varied 2.08±0.06 to 3.15±0.50 mg/1. Total dissolved solid (TDS) was between 33.50±7.91 and 83.85±21.06mg/l. Dissolved oxygen (DO) ranged from 6.23±0.05 to S.28±0.10 mg/1 and Electrical conductivity (EC) ranged from 40.00±4.32 to 87.25±19.97D/s. The parameters were correlated within the stations. The results from the study showed that most of the physicochemical parameters were within the accepted values for consumption, biodiversity, productivity, domestic usage and are below pollution level.
Open Access
Assessment of Goodness of Fit Tests
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2020-01-13) Cheka, B.C.; Banyigyi, A.H.; Ameh, S.M.
Analysis ol the stomach contents of Barbus occidental is from River Uke, Nasarawa Slate, Nigeria was studied using 219 Barbus occidentals samples collected between March - August 2017. Food and feeding habit of the sample was done using numerical, frequency of occurrence and volumetric methods. The result showed that the fish fed mostly on phytoplankton (Cyanophyceae (15.84%), Chlorophyceae (12.29%), Filamentous algae (1.09%), three groups of zooplankton encountered were copepods (0.41%), cladocerans (5.56%) and nematode (20.94%), and they also fed substantially on anthropods (7.16%), fish remains, insect larval (1.19%) and benthos organisms (5.68%), the study indicated that the fish is omnivores. There was no significant difference (p>0.01) on the item consumed in wet and dry seasons. The information gathered from this present study serves as a guideline for further research on the river
Open Access
DISTRIBUTION AND ABUNDANCE OF PHYTOPLANKTON SPECIES IN BODNA RIVER IN KWALI, ABUJA
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2020-06-22) Sani, Bilkisu Mohammed; Banyigyi, A.H.; Makpo, James Kpuk
Rivers are vital and vulnerable freshwater systems that are critical for the sustenance of all life. The Bodna River was analyzed for the abundance and distribution of phytoplankton species. The main aim of the study was to.determine the presence of phytoplankton distribution and effects of human activities on the biological properties of the river, to further enhance conservation and management. Samples were collected insitu from the four sampling stations using plankton net of mesh size 50 pm. The water sample was concentrated to 100ml level into phytoplankton bottle,lml of Lugol solution was added and allowed to sediment for 24 hours. 91 ml of the water sample decanted and left with 10ml of the sample used for species count with drop count method. Descriptive analysis of bar charts and Analysis of variance (ANOVA) were used to determine the percentage abundance of phytoplankton. The result showed phytoplankton.
Open Access
DISTRIBUTION AND ABUNDANCE OF SOME ZOOPLANKTON SPECIES IN NASARAWA STATE UNIVERSITY STREAMS, KEFFI, NIGERIA
(Department of Zoology, Nasarawa State, University Keffi, 2021-07-06) Asarya, A.; Makpo, James Kpuk; Banyigyi, A.H.; Idowu, R.T.
The study on Zoological Garden and Cross-three streams in Nasarawa State University Keffi, Nigeria focused on the distribution and abundance of some zooplankton species. Zooplanktons were sampled with improvised fabricated 30cm diameter cylindrical scooper net with attached mesh size of 96pm from the surface of the stream due to the shallowness of the sampling sites and less water volume. There were three major phyla with 12 species of zooplankton found in the two university streams which include Arthropoda, Cilliophora and Rotifera. The phylum Arthropoda has the highest relative abundance with ten (10) species which include; Gammarus fasciatus, Gnathophausia zoea, Cala nus cyclops, Cyclops serrulatus, Harpacticella jejuensis, Corycaeus affinis, Eresia nauplis, Calais parreysii, the order Cladocera of phylum Arthropoda has two species Moinabra chiata and Daphnia pulex while the phylum Cilliophora and Rotifera have one (1) species Euchlanis contorta and Vorticella convallaria respectively. The Station variation of zooplankton distribution was observed to be higher in station I of Zoological Garden stream with 290 (36.9%) followed by station III of Cross-three stream with 289 (29.1%) while stations II and IV recorded 242 and 228 representing 18.5% and 15.5% respectively. The seasonal distribution was high in the raining season with total of 563 representing 52.7% while dry season distribution recorded 468 representing 47.3%. The distribution and abundance of zooplankton of the two university streams (Zoological Garden and Cross-three) shows some relationship between the zooplanktons and the seasons. Higher number recorded during the raining season may be attributed to the volume of the water in the two streams. The finding of this study is therefore helpful to the communities around the streams as the water is relatively safe for domestic use and aquatic life, environmental auditing which involves self-regulation should be encouraged as an overall environmental management policy.
Open Access
The Diversity of Fish Species, Composition and Abundance from Bodna River In Kwall Area Council, Abuja.
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2019-03-02) Sani, B.M.,; Idowu, R.T.; Banyigyi, A.H.
The Diversity of fish species, composition and abundance from Bodna River in Kwali Area Council, Abuja was studied between May 2018 to April 2019.The aim of the study was to determine the management and sustainable use of the fisheries resources of the Area council. About 1331 fish were collected from the artisanal fishermen during the study period and morphometric indices were determined using standard methods. The fish were identified and counted. Sex ratio 1:2:1 (Males to Females) was obtained indicating a male dominated population. Length -weight measurement indicated that the fish exhibited positive allometric growth pattern. The highest percentage abundant species in the site were Oreochromis niloticus with 34.8% Clarias garienpinus with 28.0% and Pellonula leonerisis with 17.6% and the least occurring species were Ncmnocharax shariensis with 11.0% Mormyrus valenciensis with 7.7%. The seasonal variation of fish distribution was observed to be higher in the wet season with 66.2% than the dry season. Nutrient displayed greater impact on fish abundance in the wet season. The Simpson and Shannon Weiner’s diversity index values were (0.976) and (-1.456) in both richness and evenness respectively. The findings of the study could be helpful to the artisanal fishermen and the community for fisheries sustainability.
Open Access
Geology, Hydrology and Measurement of the Remaining Storage, Rate of Erosion and Siltation of Doma Drainage Basin North-central, Nigeria
(Department of Geology and Mining, Nasarawa State University Keffi, 2020-09-16) Baba, Adama Oleka; Banyigyi, A.H.; Jatau, B.S.
The Mada River Basin has a total area of 9,256 km2. Its head water is from the Jos- Plateau and it empties into the River Benue at the Eastern part of Loko, Nasarawa State. Doma Dam is at elevatio of 130msl. its embankment is bounded approximately by latitude 8 20 N and longitude 8 20N and longitude 8 20E. It was constructed in 1995. with original storage capacity of 37.5mcm. The Doma impounded reservoir has an active storage capacity of 28.5mcm and dead storage capacity of 9.0mcm. After 24 years of impoundment, continuous siltation caused by sediment is being deposited annually affecting its usefulness. To determine the volume of water available in the reservoir, there is need to study the reservoir’s bathymetry using boat, satellite navigator and metric tape with a weight attached to it. The study area is in the sedimentary environment of the central Benue Trough with different sedimentary formations. The formations have different lithostratigraphic sequence, thickness, age, sea movement and paleoenvironment. Rate of siltation between 1995 and 2019 in an area of2.615km2 is0.650km3/a with remaining depth of 12.912km (45%) of its original storage representing a 55% storage loss while rate of erosion was calculated to be 0.248mm/a. Volume of rainfall over the total dam drainage basin is 3,900km /a. Volume of total runoff is 936km3/a. Depth of evaporation from the open water table as of when the dam was constructed is 1.518km3 while as at present is 2.335km3/a because the area around the dam is flooded. Environmental minimum is 0.273knr7a. Assuming the leakage through the dam body is negligible, the water budget of the dam is positive with 10.304km3/a meaning there is active storage and safe yield although water demand of the study area is not known, if preventive measures are not taken, the dam will be completely silted up in some years from now.
Open Access
GILLS AND INTESTINAL PARASITES OF MORMYRUS RUME AT UKE RIYER, KARU LOCAL GOVERNMENT AREA, NASARAWA STATE, NIGERIA.
(Department of Geography, Nasarawa State State University Keffi, 2020-01-06) Banyigyi, A.H.; Akpanwa, Y.R.; Makpo, James Kpuk; Ameh, S.M.
30004 and farm *51 are potential host of various parasitic species that cause grater mortalities. The normal of fish is affected by the parasites that lives on the fish if highly infested, Mormyrus mme are increasingly becoming important in the aquarium business and aquaculture, thus the need arises for a better knowledge about the nature and control of parasites affecting them. Total of one hundred and ten (110ر samples of different sizes of Mormyrus هاذا were collected at different dates at Uke River. Kam Local Govermneni Area of Nasarawa State between July and September2O19 from local fishermen. The fish were transported in a cooler containing ice to the Zoology Labouratory of Nasarawa State University, *•05 for gills and intestinal parasites examimatiori. Forty-two (42) were found to infected with parasites and the total of number of parasites recovered were sixty-nine (69). Parasites isolated were Eimeria ولحلآى, Procamdmis spp, 50, D. latum and B. daviceps. Apart from Eimeria spp that recovered from gills the rest parasites were recoverd from the instestine. The highest number (50) of parasites species isolated was Procamallan spp, followed by Dactylogyrus spp (9) while Eimeria spp and B. claviceps parasites isolated were four (4) each and the lowestnumber(2) ofparasites isolated wasD. latum. Continue study on the parasites of other fish in Uke River is recommended to provide knowledge on the parasitic infestationlevel ofthe fish in the River.
Open Access
GROWTH PERFORMANCE AND FEED UTILIZATION OF CATFISH (Clarias ga 7epinus) FINGERLINGS REARED IN STRUCTURED AND UNSTRUCTURED WATER
(Department of Zoology, Nasarawa State University Keffi, 2018-01-06) Ameh, S.M.; Makpo, James Kpuk; Sotolu, A.O.; Banyigyi, A.H.; Cheka, B.C.
This study dett 'mined the growth performance and feed utilization of catfish (Clarias gariepinus) fingt lings reared in structured and unstructured water (de-clorinated tap water). Structurec Water used for the study was obtained from Innovative Biotech Limited along Abuja - Kefl. Road while de - chlorinated tap water (Unstructured Water) from the University environment. Two (2) treatments were replicated, each having three (3) groups. Length-weight measurement were taken using electronic weighingbalance,measuringboard and a centimeter rule.Some physio - chemical parameters were determined using titrimetric method while water temperature, DO and BOD were determined using Biocotek water portable DO analyzer model JPB - 607A. Water pH and Electric Conductivity were analyzed using JENWAY portable pH and conductivity meter model number 430. The mean value of temperature for structured water (SW) and Unstructured water (UW) was 27°C while the pH value was 6.96 for SW and 7.51 for UW. DO had mean value of 9.8mg/L in SW and 7.5mg/L in UW. Mean value of conductivity was 62pS in SW and 98.8pS in UW while water hardness recorded a value of 24mg/L in SW and 80mg/L in UW. The mean for BOD was*3.8nig/L in SW and 6.2mg/L in UW. The highest mean weight recorded in SW was 78.1g and mean length of 19.7cm in SW after the ten (10) weeks experimental period which represents the best growth performance. The highest Specific Growth Rate (SGR) in SW was 33% while the lowest value of 29% was recorded in UW. Feed Conversion Efficiency (FCE) had the highest value of 29.4% in SW. The highest Protein Efficiency Ratio (PER) of 1.6% was recorded in SW while the lowest value of 0.9% was observed in UW. Apparent Net Protein Utilization (ANPU) recorded the highest value of 41% in SW whereas the lowest value of 11.16% was observed in UW. Based on the results obtained in the study, Clarias gariepinus fingerlings performed better in SW than U W with the values of 33% SGR, 78.Ig weight and 19.7cm in length. FCE was 29.4%, PER was 1.6% and ANPU was 41%. The use of structured water in aquaculture will give better yield in terms of food output and cash value of the Fish cultured. This is in view of the better growth performance for fish cultured in structured water.
Open Access
GROWTH PERFORMANCE AND FEED UTILIZATION OF CATFISH (Clarias gariepinus) FINGERLINGS REARED IN STRUCTURED AND UNSTRUCTURED WATER
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2019-05-16) Ameh, S.M.,; Makpo, James Kpuk; Sotolu, A.O.,; Banyigyi, A.H.; Cheka, B.C.
This study determined the growth performance and feed utilization of catfish (Clarias gariepinus) fingerlings reared in structured and unstructured water, (de-clorinated tap water]. Structured Water used for the study was obtained from Innovative Biotech Limited along Abuja - Keffi Road while de - chlorinated tap water (Unstructured Water] from the University environment. Two (2] treatments were replicated, each having three [3] groups. Length - weight measurement were taken using electronic weighing balance, measuring board and a centimeter rule.Some physio - chemical parameters were.determined using titrimetric method while water temperature, DO and BOD were determined using Biocotek water portable DO analyzer model JPB - 607A. Water pH and Electric Conductivity were analyzed using JENWAY portable pH and conductivity meter model number 430. The mean value of temperature for structured water [SW] and Unstructured water [UW] was 27°C while the pH value was 6.96 for SW and 7.51 for UW. DO had mean value of 9.8mg/L in SW and 7.5mg/L in UW. Mean value of conductivity was 62pS in SW and 98.8gS in UW while water hardness recorded a value of 24mg/L in SW and 80mg/L in UW. The mean for BOD was 3.8mg/L in SW and 6.2mg/L in UW. The highest mean weight recorded in SW was 78.1g and mean length of 19.7cm in SW after the ten (10] weeks experimental period which represents the best growth performance. The highest Specific Growth Rate (SGR] in SW was 33% while the lowest value of 29% was recorded in UW. Feed Conversion Efficiency (FCE] had the highest value of 29.4% in SW. The highest Protein Efficiency Ratio (PER] of 1.6% was recorded in SW while the lowest value of 0.9% was observed in UW. Apparent Net Protein Utilization (ANPU] recorded the highest value of 41% in SW whereas the lowest value of 11.16% was observed in UW. Based on the results obtained in the study, Clarias gariepinus fingerlings performed better in SW than . UW with the values of 33% SGR, 78.lg weight and 19,7cm in length. FCE was 29.4%, PER was 1.6% and ANPU was 41%. The use of structured water in aquaculture will give better yield in terms of food output and cash value of the fish cultured. This is in view of the better growth performance for fish cultured in structured water. '
Open Access
Growth Performance and Feed Utilization of Catfish (Clarias gariepinus) Fingerlings Reared in Structured and Unstructured Water
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2018-03-08) Makpo, James Kpuk; Ameh, S.M.,; Sotolu, A.O.,; Banyigyi, A.H.; Cheka, B.C.,
This study determined the growth performance and feed utilization of catfish (Clarias gariepinus) fingerlings reared in structured and unstructured water (de-clorinated tap water). Structured Water used for the study was obtained from Innovative Biotech Limited along Abuja - Keffi Road while de - chlorinated tap water (Unstructured Water) from the University environment. Two (2) treatments were replicated, each having three (3) groups. Length - we ight measurement were taken using electronic weighing balance, measuring board and a centimeter rule. Some physio - chemical parameters were determined using titrimetric method while water temperature, DO and BOD were determined using Biocotek water portable DO analyzer model JPB - 607A. Water pH and Electric Conductivity were analyzed using JENWAY portable pH and conductivity meter model number 430. The mean value of temperature for structuredwater (S W) and Unstructuredwater (UW) was 27°C while the pH value was 6.96 for S W and 7.51 for UW. DO had mean value of 9.8mg/L in SW and 7.5mg/L in UW. Mean value of conductivity was 62pS in SW and 98.8pS in UW while water hardness recorded a value of 24mg/L in SW and 80vng/L in UW. The mean for BOD was 3.8mg/L in SW and 6.2mg/L in UW. The highest mean weight recorded!* SW was 78.1 g and mean length of 19.7cm in SW after the ten (10) weeks experimental period which represents the best growth performance. The highest Specific Growth Rate (SGR) in SW was 33% while the lowest value of 29% was recorded in UW. Feed Conversion Efficiency (FCE) had the highest value of 29.4% in SW: The highest Protein Efficiency Ratio.(PER) of 1.6% was recorded in SW while the lowest value of 0.9% was observed in UW. Apparent Net Protein Utilization (ANPU) recorded the highest value of 41% in SW whereas the lowest value of 11.16% was observed in UW. Clarias gariepinus fingerlings performed better in SW than UW with the values of 33% SGR, 78’lg weight and 19.7cm in length. FCE was 29.4%, PER was 1.6% and ANPU was 41%. The use of structured water in aquaculture will give better yield in terms.of food output and cash value of the fish cultured.
Open Access
Growth Performance and Feed Utilization of Catfish {Clarias gariepinus) Fingerlings Reared in Structured and Unstructured Water
(Department of Zoology, Nasarawa State, University Keffi, 2018-03-06) Makpo, James Kpuk; Ameh, S.M.; Sotolu, A.O.; Banyigyi, A.H.; Cheka, B.C.
This study determined the growth performance and feed utilization of catfish (Clarias gariepinus) fingerlings reared in structured and unstructured water (de-clorinated tap water). Structured Water used for the study was obtained from Innovative Biotech Limited along Abujg - Keffi Road while de - chlorinated tap water (Unstructured Water) from the University environment. Two (2) treatments were replicated, each having three (3) groups. Length - weight measurement were taken using electronic weighing balance, measuring board and a centimeter rule. Some physio - chemical parameters were determined using titrimetric method while water temperature, DO and BOD were determined using Biocotek water portable DO analyzer model JPB - 607A. Water pH and Electric Conductivity were analyzed using JEN WAY portable pH and conductivity meter model number 430. The mean value of temperature for structured water (S W) and Unstructured water (UW) was 27°C while the pH value was 6.96 for SW and 7.51 for UW. DO had mean value of 9.8mg/L in SW and 7.5mg/L in UW. Mean value of conductivity was 62pS in SW and 98.8pS in UW while water hardness recorded a value of 24mg/L in SW and 80mg/L in UW. The mean for BOD was 3.8mg/L in SW and 6.2mg/L in UW. The highest mean weight recorded in S W was 78.1 g and mean length of 19.7cm in S W after the ten (10) weeks experimental period which represents the best growth performance. The highest Specific Growth Rate (SGR) in SW was 33% while the lowest value of 29% was recorded in UW. Feed Conversion Efficiency (FCE) had the highest value of 29.4% in SW. The highest Protein Efficiency Ratio (PER) of 1.6% was recorded in SW while the lowest value of 0.9% was observed in UW. Apparent Net Protein Utilization (ANPU) recorded the highest value of 41% in SW whereas the lowest value of 11.16% was observed in UW. Clarias gariepinus fingerlings performed better in SW than UW with the values of 33% SGR, 78.lg weight and 19.7cm in length. FCE was 29.4%, PER terms of food output and cash value of the fish cultured.
Open Access
Growth Performance And Feed Utilization Of Tilapia:
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2001-03-06) Banyigyi, A.H.; J.K., Balogun,; S.J., Oniye,; J., Auta
Diets Containing Bambara Groundnut Meals (BGM) were fed to Oreochromis Niloticus Of Mean Weight 7.0kg + 1.53 SD For 14 Weeks Three Of The BGM Were Oven Toasted For 15, 30 and 45 Minutes The Fourth Meal Was Traditionally Toasted (Frying) While The Fifth Was Raw BGM Meal.
Open Access
Immune Status Of Cd4 T- Cells In Hiv/Aids With Pathogenic Microsporidium In Benue State, Nigeria
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2011-03-01) Andrew, Yako B.; Ajayi, J.A.,; Lar, P.,; Makpo, James Kpuk; Auta, K.I.,; Yako, J.B.,; Banyigyi, A.H.; Nweze, C.c.,
The organism (Microsporidium) and improved diagnostic approaches In Nigeria Is increasingly common. Coated latex spheres of CD4 T- Cells Was Used To Determine HIV/AIDS individuals as A Preliminary Survey In Benue State Which Shows That 96 HIV/AIDS individuals were infected with pathogenic microsporidium. 966, 42 (4.3%) males CD4 T-cells count were <335 cell/pi, and in the female category 1042, 54 (5.2%) CD4 Tcells weie <320 cell/pi at the first CD4 count. The strain of pathogenic microsporidium in HIV/AIDS individuals was observed as a leading cause of diarrhea, and a fall in the CD4 T-cells count after 90 days of re-evaluation. Among the age group of 30-39 years, the CD4 cells count gradually decline to <200 cell/pi indicating high risk to acquired immune deficiency syndrome (AIDS) and opportunistic infections. However, there was a significant difference among sexes given that, Z=1.039<±1.96 in other words, microsporidium solely depended on age which shows no significant relationship among the age groups (x2=7.815>0.05).
Open Access
IMMUNOLOGIC DETERIORATION OF CD4 C^ELLS IN HIV ' INDIVIDUALS WITH FIBsAg+ CARRIAGE RATE IN BENUE ; STATE, NIGERIA
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2010-03-04) Andrew,Yako B.; AJayi, J.A.; Makpo, James Kpuk; Lar, P.; Aula, K.I.; Banyigyi, A.H.
HIV positive individuals with HBsAg+ was a factor used to determine the immune status among infected HIV individuals in Benue state. .Of 966 males'infected with HIV 15(60.0%) were positive 'with CD4 counts<335 cell/pi and in .the female category 1042,10(40.0%) were positive with the CD4 counts<420cell/pi at the first CD4 cells count. According to age distribution/ between the age of 30-39 years were HBsAg+ witii die CD4 counts<335 cell/pi and the least 288, T(4.0%) for HBsAg+ carriage rate, ‘die CD4 counts was <224 cell/pi between the age of >50 years old. At the second CD4 counts (after 6 months) the CD4 counts fell below <200 cell/pi and <100cell/pl respectively. However, there was a .significant relationship in the degree of infection among sexes given that, Z=0.40<±1.96. And HBsAg+ carriage rate was depended on age(x2=7.82<0.05) with a significant difference.
Open Access
Length - Weight Relationship, Condition Factor and Bacterial Growth of Catfish (Clarias gariepinus) Fingerlings Reared In Structured and Unstructured Water
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2018-03-09) Ameh, S.M,; Makpo, James Kpuk; Sotolu, A.O,; Banyigyi, A.H.
Ihis study determined the length-weight relationship; condition factor and bacteria growth in catfish (Clarias gariepinus) fingerlings reared in structured and unstructured water (de-clorinated tap water). Structured Water used tor the study was obtained from Innovative Biotech Limited along Abuja - Keffi Road while de - chlorinated water (Unstructured Water) from the University environment. Two (2) treatments were replicated, each having three (3) groups. Clarias gariepinus fingerlings were grouped in tens (10) and put in six (6) glass aquarium measuring 60cm * 30cm * 30cm. Length - weight measurements were taken using electronic weighing balance, measuring board and a centimeter rule. Bacterial growth was analyzed using MacConkey Agar (MAC) and Eosin Methylene Blue Agar (EMB) methods. The regression analysis of the length - weight relationship of Clarias gariepinus fingerlings recorded b < 2.84 in structured water and b < 2.51 in unstructured water. This result showed that both structured water and unstructured water exhibited negative allometric growth pattern. The value of correlation coefficient (r) was 0.848 in SW and 0.816 in UW indicating a strong positive relationship between length and weight. The mean value for condition factor (K) was 1.00 in SW while UW recorded 0.99. Bacterial growth showed no result in both SW and UW when the initial gut samples of Clarias gariepinus fingerlings were analyzed. But the final analysis with the MAC method revealed that Catfish 0Clarias gariepinus) reared in SW recorded poor growth of bacteria in the fish gut while that of UW showed growth with pink-red colifonn indicating bacterial growth. In the EMB method, the final analysis treated with S W showed mucoid pink and colourless colonies, an indication of organism(s) fermenting neither lactose nor sucrose (no bacterial growth) while in UW, colonies appeared dark purple_to black patches showing bacterial growth in the experimental medium. Fish in S W grew better with no bacterial in the gut whereas reverse is the case in UW.
Open Access
LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF BARBUS ' 0CCIDENTALIS (CYPRINIDAE) IN RIVER UKE, NASARAWA STATE, NIGERIA
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2019-12-18) Cheka, B.C,; Okunsebor, S.A.,; Banyigyi, A.H.; Ameh, S.A.
The knowledge of some quantitative aspects of fish such as length-weight relationship and condition factor,studies is an important tool for the study 'of fishery biology. The fish samples were purchased from the landings of fisherfolks of River Uke using fishing gears such as cast nets, traps, hook and line three times monthly from March to August 2017 covering the rainy and dry season. The total length and weight of 219 Barbus occidentalis obtained from River Uke were examined. The weight of Barbus occidentalis sampled ranged from 15.0-996.9g and was , determined to the nearest O.lg using electronic weighing balance model BL20001. The total length of was 10.7-43.5cm were recorded .using meter rule to the nearest 0.1 cm. The length and weight relationship of Barbus occidentalis showed positive correlation (r=0.858) in both sex. The regression exponent (b<3) showed negative allometric growth pattern. The mean condition factor (K) was (1.079) in both sexes which showed that the condition and the well being of a Barbus occidentalis was good in River Uke. This may be attributed to the availability of food materials and good physicochemical parameters of the River.
Open Access
Length-Weight Relationship and Condition Factor of Six Fish Species of Donia Reservoir, Nasarawa State, Nigeria
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2017-03-25) Banyigyi, A.H.
This study examined the Length-weight relationship and condition factors of six species of fish of Doma Reservoir: Sarotherodon galilcieus, Tilapio zilli, Oreochromis niloticus, Hemichromis fasciatus, Hyperopisus bebe and Glorias gariepinus. A fleet of gillneys made up of seven multifilament nets of 38.1mm, 57.15mm, 76.2mm, 101.6mmm, 127.0mm, 152.4mm and 177.8mm were used to sample the fish in reservoir. The fish species studied exhibit allometric growth pattern. Sarotherodon galilaeus and Tilapia zilli exhibit negative allometric growth with b= 2.847 and 2.929 while Oreochromis niloticus, Hemichromis fasciatus, Hyperopisus bebe and Clarias gariepinus exhibited positive allometric growth with b= 3.089, 3.378, 3.115 and 3.258. The correlation coefficient (r) value which ranged between 0.979 and 0.985 indicated high degree of correlation. Condition factor analysis also show that Sarotherodon galilaeus, Tilapia zilli, Oreochromis niloticus and Hemichromis fasciatus have value greater than 1 indicating that they were in good health conditions while Hyperopisus bebe and Clarias gariepinus have value less than 1 indicating that they were not in good health condition.
Open Access
PHYSICO-CHEMICAL CHARACTERISTICS OF DOMA RESERVOIR, NASARAWA STATE, NIGERIA
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2016-03-05) Banyigyi, A.H.; Auta, J.,; Oniye, S.J.,; Balogun, J.K.
Some physico-chemical parameters of water in Doma reservoir, Nasarawa State, Nigeria was determined from July, 2012 to June, 2014 from three sampling stations. The physico-chemical parameters of water were determined using La Motte Tracer (pocketester) code: 1766 and La Motte Fresh Water Aquaculture Test Kit (model: AQ-2) code: 3633-03. (State the methods used before the results) The physico-chemical parameters of the water and their respective mean range were; water temperature 27.98-28.24°C, transparency 63.3563.62 cm, pH 7.03-7.05, TDS 26.25-27.08 ppm. electrical conductivity 43.75-45.09 pS~‘, water hardness 18.33-19.16 ppm, while dissolve oxygen (DO) was 6.52-6.79ppm. There were no significant difference (P<0.05) in the values for physico-chemical parameters for the sampling stations, but there were seasonal variation (P<0.05) in the physicochemical parameters of the reservoir. The mean dry season values for water temperature, transparency, salinity, total dissolved substances, conductivity, hardness and dissolved oxygen were significantly higher (P<0.05) than these of the rainy season while the mean rainy season values for depth, ammonia nitrogen, alkalinity? carbon dioxide and chloride were higher than those of dry season. The physicochemical parameters of Doma reservoir is within acceptable range that supports aquatic life, particularly fish.
Open Access
Studies of Zooplanktons of Doma Reservoir, Doma Local Government Area, Nasarawa State, Nigeria
(Department of Zoology, Nasarawa State, University Keffi, 2018-01-06) Yusuf, M.; Sotolu, A.O.; Banyigyi, A.H.; Makpo, James Kpuk
Studies of the zooplanktons of Doma reservoir, Nasarawa State, Nigeria was conducted from March to August, 2017 using plankton net towed horizontally on the surface and lower columns of the water. Zooplankton composition, diversity and relative abundance were determined at six sampling points along the course of Doma reservoir. Microscopic observation and identification of collected samples using appropriate keys was carried ut. Results obtained showed four classes and seventeen genera of zooplanktons, the protozoa constituted the largest group with 363(34.73%) individuals and the least group were the cladocera with 96 (9.46%) individuals, ^planktons diversity indices were determined using Shannon-Weiner diversity index (H) and ranged from 0.453-1.972, species evenness (E) ranged from 0.431-0.926, and Margalefs index of taxa richness (D) ranged from 4.67-6.94. Human activities such as farming, domestic washing, fishing and the physical environmental factors during the study period accounted for the variations in zooplankton taxa observed at the sampling points.
Open Access
STUDIES ON SOME PHYSICO - CHEMICAL PARAMETERS AND BACTERIAL GROWTH IN THE GUT OF CATFISH (Clarias gariepinus) FINGERLINGS REARED IN STRUCTURED AND UNSTRUCTURED WATER
(Department of Zoology, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2019-10-17) Ameh, S.M.,; Makpo, James Kpuk; Banyigyi, A.H.
Water is ubiquitous in nature, and it may be from this property that it is frequently taken for granted. For the last few decades, researchers have been differentiating "bulk water" from other forms of water'and there is now a name for this other water presently referred to as Exclusive Zone or EZ water. It is also called structured water, energy water, reactivated water, activated water, etc. The studies on some physico — chemical parameters and bacterial growth in the gut of Catfish (Clarias gariepinus) Fingerlings reared in structured and unstructured water was carried out in the Zoology Laboratory of Nasarawa State University Keffi. Water temperature was analyzed using a dry mercury thermometer. Dissolved Oxygen and Biological Oxygen Demand (BOD) were determined using Biocotek water portable DO analyzer, model number JPB - 607A. Water pH and Electric Conductivity were analyzed using JENWAY portable pH and conductivity meter, model number 430 while the titrimetric method was used in analyzing water hardness. The mean value of water temperature for Structured Water (SW) and Unstructured water (UW) was 27°C, pH value was 6.96 for SW and 7.51 for UW. Dissolved Oxygen had a mean value of 9.8mg/L in SW and 7.5mg/L in UW. Mean value of electrical conductivity was 62pS in SW and 9S.8pS in UW while water hardness recorded a value of 24mg/L in SW and 80mg/L in UW. The mean value for BOD was 3.8mg/L in SW and 6.2mg/L in UW. Bacterial growth was investigated using MacConkey Agar (MAC) and Eosin Methylene Blue Agar (EMB)._ The initial analyses for MAC and EMB recorded no growth of bacteria, which meant their absence. In the final analysis of MAC, Catfish (Clarias gariepinus) reared in UW showed bacterial growth with pink-red colour while poor growth of bacteria was recorded in fish reared in SW. In EMB, the final analysis of the fish sample reared in SW showed Mucoid pink and Colorless colonies, an indication of organism fermenting neither Lactose nor sucrose while in UW, colonies appeared purple — black showing bacterial growth in the gut of the fish. This result indicates the repulsive nature of structured water (SW) to harmful germs in the living cells of an organism which helps to maintain a healthy environment within the cell.