The Physico-Chemical Parameters Of An African Arid Zone Man Made Lake

Idowu, Rachel Toyosi; Inyang, Nicholas Mathias; Eyo, Joseph Effiong

doi:10.4314/ari.v1i2.40753

Cited by 13 publications

(12 citation statements)

References 11 publications

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“…The mean temperature values recorded in Lake Alau during this study is similar to work of Idowu et al, (2004); Mohammed and Yaji, (2013). The temperatures variation of the Lakes falls within the range of 20 -50°C meant for domestic purposes and for fish production in tropical fresh water.…”

Section: Discussionsupporting

confidence: 89%

“…However, the result is slightly higher compared to 4.94 mg / l recorded for Ogun River and 3.4 mg / l for Calabar River. Similar result (5.15 -6.35 mg / l) was obtained by Idowu et al, (2004) in Lake Alau. A higher value obtained may be due to agitation and frequent wind current in the water.…”

Section: Discussionsupporting

confidence: 87%

“…The water volume is lowest during the months of March and April, where the great portions of the lake beds are dried, field of sand and rocks are exposed [27]. There was neither pre-impoundment nor immediate post impoundment survey.…”

Section: Study Site and Locationmentioning

confidence: 99%

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Physico – Chemical Water Quality Analyses of Lake Alau, North – Eastern Nigeria

Mohammed¹,

Wakil²,

Bala³

et al. 2017

WROS

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Abstract:This study was conducted on the physico -chemical water quality analyses of Lake Alau, North -eastern Nigeria.Water was sampled biweekly for the period of seven months from five sampling stations. The physico -chemical qualities were determined using the methods described by APHA, (1985) and Boyd (1990). The mean values of the physico -chemical parameters of water qualities analysed are 23. 04°C, 56.21 cm, 7.8, 6.41 mg / l, 0.68, 0.034 mg / l, 0.07 mg / l, 39.46 mg / l and 56.28 mg / l for temperature, turbidity, pH, DO, BOD, Nitrite, NH 3 , alkalinity and total hardness of Lake Alau. The results indicated that, there are no variations between the five stations, except ammonia and nitrate which exhibited significant variations. The water quality parameters were within the range recommended for aquatic life; fish production and domestic use. The physico -chemical parameters were within the observed ranges in unpolluted water bodies and also were found to be within tolerable limit for high yield for aquatic life; fish production and domestic use. It provided vital information on about some of the quality status of Lake Alau, and its suitability for fish production and uses. Any variation, weather seasonal or spatial in physical and chemical characteristic of the Lake has being influence by climatic regime and catchment characteristic, i.e. extent of human activities and water volume fluctuations. Farmers bordering the Lake, dispose both their organic and inorganic wastes in to the Lake directly or indirectly. It is recommended that the relevant stakeholder charged with management of the Lake should carry out a sensitization campaign to educate the people on the danger associated with loading of the Lake with waste (toxic), from washing disinfectant or herbicides spraying machine in the Lake Alau.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 87%

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Physico – Chemical Water Quality Analyses of Lake Alau, North – Eastern Nigeria

Mohammed¹,

Wakil²,

Bala³

et al. 2017

WROS

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“…Therefore, this may mean that rice-fields subjected to only chemical fertilizer application in Minna produce mosquitoes at differential rates from the other counterpart habitats subjected to other kind of agrochemical practices. The level of Alkalinity, water hardness and Chloride recorded in the rice-fields in this study fell within ranges optimum for the productivity of aquatic organisms including mosquitoes (Ramatake and Morghe, 1998;Idowu et al, 2004;Girgin et al, 2010). The concentration of Potassium was significantly higher in sites B and C, where there were applications of inorganic fertilizer.…”

Section: Discussionsupporting

confidence: 56%

Influence of Agro-chemical Inputs on Suitability of Physicochemical Conditions of Rice-Fields for Mosquito Breeding in Minna, Nigeria

Salihu

Olayemi²,

Ukubuiwe³

et al. 2017

jmr

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The influence of chemicals used in rice farming in Minna, on physicochemical properties of rice-field mosquito larval habitats was investigated during the rainy season of 2013. Standard water quality analyses techniques were followed in determining the concentrations of the different physicochemical parameters. The results showed that Temperature, Dissolved Oxygen (DO) and Biological Oxygen Demand (BOD) did not vary significantly among the types of rice fields (range = 30.00±0.00 to 30.50±0.11 o C, 6.00±0.00 to 7.00±1.41 mg/l, and 4.00±0.00 to 4.50±2.12 mg/l, respectively). .84 to 508.50±44.5 µs/cm, respectively. While the concentration of Potassium was significantly (p<0.05) lowest in site A (10.40±0.14 mg/l), the concentration of Chloride was significantly lowest in site C (23.41±15.03 mg/l) and highest in site A (31.45±4.03 mg/l). Significant positive and negative correlations between some of the parameters were also recorded. These results suggest differential suitability of rice field physicochemical condition for mosquito breeding in Minna and, thus, should provide baseline guide for mosquito vector control in relation to sustainable rice farming in the area.

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“…These include the works of Olorode et al [8] on five different rivers in River State, Hassan et al [9] on Lower Ogun River, Akindele et al [10] on Lake Tiga, Idowu et al [11] on Ado-Ekiti reservoir, Onazeyi [12] on River Ogun, Iloba [13] on Ethiope River, Ogbuagu et al [14] on Imo River, Ogunfowokan et al [15] on three reservoirs in Osun State, Essien-Ibok et al [16] on Mbo river, Bolaji [17] on Eleyele Lake catchment, Ayoola and Ajani [18] on wetland areas in Oyo State, Ibrahim et al [19] on Kontagora Reservoir, Mustapha [20] on Oyun reservoir, Fafioye et al [21] on Omi River, Mustapha and Omotosho [22] on Moro Lake, Idowu et al [23] on Lake Alau, Kolo and Oladimeji [24] on Shiroro Lake, Oniye et al [25] on Zaria dam. This work was therefore carried out to investigate some selected physical and chemical parameters of Eleyele reservoir and to make deductions on the temporal …”

Section: Introductionmentioning

confidence: 99%