Spatio-temporal dynamics of the physical and chemical parameters of lake Ehuikro
Paper Details
Spatio-temporal dynamics of the physical and chemical parameters of lake Ehuikro
Abstract
This study was conducted on lake Ehuikro, located in Bongouanou (Côte d’Ivoire) from April 2017 to March 2018. Each month, the physico-chemical parameters of the water were measured at three (3) identified stations. In order to analyse its ecological status, the following equipment was used: Conductivity meter Model Sx713; Model Sx711 pH meter; Model Sx716 oximeter and Secchi disk, which made it possible to determine the annual average values: The dissolved solids rate was 154.13 ± 1.22 mg/L (long dry season) and 181.67 ± 3.78 mg/L (short dry season). Conductivity 250 ± 3.07 Ms/cm (short rainy season) and 297.75 ± 2.66 MS/cm (long dry season). Hydrogen potential 7.35 ± 0.13 (long dry season) and 8.09 ± 0.55 (short rainy season). Temperature 27.06 ± 0.67 °C (main rainy season) and 28.45 ± 0.05 °C (main dry season). Oxygen saturation level 42.67 ± 3.77% (minor dry season) and 67.93 ± 6.96% (long dry season). The dissolved oxygen level was 3.07 ± 0.64 mg/l (short dry season) and 5.24 ± 0.45 mg/l (long dry season). The phosphorus concentration was 0.03 ± 0.01 mg/l (short rainy season) and 0.06 ± 0.01 mg/l (long rainy season). The nitrate concentration was 0.01 ± 0.1 mg/L (long dry season) and 0.02 ± 0.1 mg/L (main rainy season). Transparency 0.44 ± 0.02 cm (main rainy season) and 0.68 ± 0.05 cm (minor dry season). Depth 2.71 ± 0.36 m (main dry season) and 4.20 ± 0.51 m (main rainy season). The results obtained reveal that certain physico-chemical parameters show signs of disturbance probably linked to local anthropogenic activities.
Ahonon AS. 2011. Evaluation of the physico-chemical and bacteriological quality of surface water in the mountainous areas of south-western Togo: The case of the canton of Lavié. International master’s thesis, University of Lomé (Togo), 42p.
Aliko NG, Da Costa KS, Konan KF, Ouattara A, Gourène G. 2010. Fish diversity along the longitudinal gradient in a man-made lake of West Africa, Taabo hydroelectric reservoir, Ivory Coast. Ribarstvo 68(2), 47–60.
Barillier D, Benhida R, Vazeux. 1993. Phosphorus, sulphur and silicon and the related elements. Phosphorus, Sulfur, and Silicon and the Related Elements 78(1–4), 83–95.
Barroin G. 1980. Eutrophication, nutritional pollution and lake restoration. In: Gauthier-Villars (ed.), Pollution of continental waters: Impact on aquatic biocoenoses, Paris, 75–96.
Brunel JP, Bouron B. 1992. Evaporation of open water bodies in Sahelian and tropical Africa. CIEH, Cahiers de l’ORSTOM, Hydrology Series, 410p.
Chaussée K. 2003. Nitrates / nitrites. In: Summary sheets on drinking water and human health. Institut National de Santé Publique du Québec, 12p.
Diomandé D. 2001. Benthic macrofauna and feeding strategies of Synodontis bastiani Daget, 1948 and S. schall (Bloch & Schneider, 1801) (Bia and Agnébi basins; Ivory Coast). Doctoral thesis, University of Abobo-Adjamé, Ivory Coast, 241 p.
Djiriéoulou KC, Konan KM, Koné T, Bamba M, Gooré Bi G, Koné I. 2014. Shrimp assemblages in relation to environmental characteristics of four shallow rivers in South East Côte d’Ivoire. Turkish Journal of Fisheries and Aquatic Sciences 14, 651–658.
Dufour Ph, Durand JR. 1982. Plant production in the lagoons of Côte d’Ivoire. Revue d’Hydrobiologie Tropicale 15(3), 209–230.
Dufour Ph, Slepouka M. 1975. Dissolved oxygen in Ebrié lagoon: Influence of hydroclimate and pollution. Scientific Document, Oceanological Research Centre, Abidjan 6(2), 75–118.
Edia OE. 2008. Taxonomic diversity and structure of entomofauna populations in the Soumié, Eholié, Ehania and Noé coastal rivers (south-east Côte d’Ivoire). Doctoral thesis, University of Abobo-Adjamé, Côte d’Ivoire, 152p.
Ekou L, Ekou T, N’Da KJ, Dje T. 2011. Temporal variations in the physicochemical and biotic parameters of two aquatic ecosystems in the Ebrié lagoon. European Journal of Scientific Research 58(3), 414–422.
Ekou L, Ekou T, N’Da KJ, Dje T. 2011. Temporal variations in the physicochemical and biotic parameters of two aquatic ecosystems in the Ebrié lagoon. European Journal of Scientific Research 58(3), 414–422.
Galy-Lacaux C, Delmas R, Kouadio G, Richard S, Gossé P. 1999. Long-term greenhouse gas emissions from hydroelectric reservoirs in tropical forest regions. Global Biogeochemical Cycles 13(2), 503–517.
Hammoumi D, Al-Aizari H S, Alaraidh I A, Okla M K, Assal M E, Al-Aizari A R, Moshab M S, Chakiri S, Bejjaji Z. 2024. Seasonal variations and assessment of surface water quality using water quality index (WQI) and principal component analysis (PCA): A case study. Sustainability 16(13), 5644.
Iltis A, Lévêque C. 1982. Physico-chemical characteristics of rivers in Côte d’Ivoire. Revue d’Hydrobiologie Tropicale 15(2), 115–130.
Koné N, Boguhé F H, N’da A S, Kien K B, Berté S. 2022. Physicochemical characterisation of the waters of the Kossou hydroelectric dam lake, Bandama River, Côte d’Ivoire. Revue Ivoirienne des Sciences et Technologie 39, 55–69.
Koné N. 2012. Study of fishing, population parameters and reproductive biology of Clupeidae Pellonula leonensis Boulenger, 1916 in the Kossou and Taabo dam lakes (Bandama River, Ivory Coast). Doctoral thesis, Félix Houphouët-Boigny University, Abidjan (Côte d’Ivoire), 194 p.
Kouassi BAT. 2013. Taxonomy, floristic composition and spatio-seasonal dynamics of periphytic algae in the Adzopé reservoir (Côte d’Ivoire). Doctoral thesis, Félix Houphouët-Boigny University (Côte d’Ivoire), 177p.
Kouassi KL, Gone DL, Meledje N, Wognin AVI, Aka K. 2007. Hydrobiology and spatio-temporal evolution of suspended loads in the Taabo hydroelectric dam lake (Côte d’Ivoire). European Journal of Scientific Research 18, 465–478.
Lery S. 2009. Continuous temperature measurement on several rivers in the Loire region. DIREN report, 16 p.
Lévêque C. 1994. Environment and biodiversity. Cité des sciences et de l’industrie, Pocket, Explora collection, 127 p.
Lozo R. 2011. Biodiversity of phytoplankton in the Bandama River: Systematic data. Master’s thesis in Hydrobiology, U.F.R Biosciences, University of Cocody Abidjan, 78 p.
Mama D, Deluchat V, Bowen J, Chouti W, Yao B, Gnon B, Baudu M. 2011. Characterisation of a lagoon system in a tropical zone: The case of Lake Nokoué (Benin). European Journal of Scientific Research 56(4), 516–528.
Martin G. 1987. An update on effluent purification and treatment: Phosphorus, vol. 3. Technique et Documentation, Lavoisier, Paris, 298p.
Millet B. 1986. Hydrology and hydrochemistry of a tropical lagoon environment: Lake Togo. Editions de l’ORSTOM, Studies and Theses Collection, Paris, 230 p.
N’Goran YN. 1989. Effects of water retention dams on the abiotic environment of a West African coastal basin: Physico-chemical parameters of the Bia, Ivory Coast–Ghana. DEA Environment thesis, University of Cocody, Abidjan (Ivory Coast), 65 p.
Ossey BY, Mambo V, Sanogo TA, Houenou PV. 2008. Analytical study of the chemical characteristics of an eutrophic lake in a tropical environment: Conductivity as an indicator of the trophic status of Lake Buyo (Côte d’Ivoire). Journal of the West African Society of Chemistry 25, 87–108.
Traoré K. 1996. State of knowledge on Ivorian inland fisheries. Consultation report, FAO Project TCP/IVC/4553, 135p.
Welcome RL. 1985. River fisheries. FAO Fisheries Technical Paper 262, 330p.
Wilcock RJ, McBride GB, Nagels JW, Northcott GL. 1995. Water quality in a polluted lowland stream with chronically depressed dissolved oxygen: Causes and effects. New Zealand Journal of Marine and Freshwater Research 29, 277–288.
Wilke M. 1998a. Variability of abiotic factors in the waters of a Mediterranean lagoon, the Canet lagoon (France). Vie & Milieu 48(3), 157–169.
Wilke M. 1998b. Spatio-temporal dynamics of physico-chemical and chemical factors in the water of a heavily transformed Mediterranean coastal lagoon, the Etang de Salses-Leucate (France). Vie & Milieu 49(2–3), 177–191.
Wu L, Liu K, Wang Z, Yang Y, Sang R, Zhu H, Wang X, Pang Y, Tong J, Liu X, Ma M, Wang Q, Ma K, Liu F. 2025. Temporal–spatial variations in physicochemical factors and assessing water quality condition in river–lake system of Chaohu Lake Basin, China. Sustainability 17(5), 2182.
Yao SS. 2006. Study of the biological diversity and feeding ecology of the ichthyofauna of a West African hydrosystem: The case of the Comoé basin (Côte d’Ivoire). Doctoral thesis, University of Cocody-Abidjan, 280 p.
Yté WA, Kouassi NC, Yoro S. 1996. Zooplankton population of Lake Buyo (Côte d’Ivoire): Faunal list and distribution. Agronomie Africaine 8, 143–152.
Nahon Mamadou Fofana, Kouassi Koumoin Henry, Appiah Yao Saki, Diomande Abou, 2025. Spatio-temporal dynamics of the physical and chemical parameters of lake Ehuikro. Int. J. Biosci., 27(3), 158-168.
Copyright © 2025 by the Authors. This article is an open access article and distributed under the terms and conditions of the Creative Commons Attribution 4.0 (CC BY 4.0) license.