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Spatial and Temporal Variation of the hydrological parameters in the Wouri-Nkam Section of the Cameroon Estuary, Central African Atlantic Coast

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Open Journal of Marine Science 2021年第4期11卷 129-156页

作者： Felix Besack Ebonji Seth Rodrigue Ajonina Gordon Nwutih Edikin Roland Dieudonné Sone Essoh Willy Nguekeu Brice Mbang Essome Junior Hamadou Toume Michel-Remi Onguene Raphael Tomedi Eyango Minette Department of Oceanography of the Institute of Fisheries and Aquatic Sciences University of Douala Douala Cameroon Laboratory of Ecosystems and Aquatic Resources Douala Cameroon Institute of Fisheries and Aquatic Sciences of the University of Douala Douala Cameroon Association for the Conservation of Nature (ASCON) Douala Cameroon Douala Institute of Technology (IUT) Douala Cameroon

This study aimed to provide relevant knowledge about the dynamics of the hydrological parameters in the river-estuary continuum of the Wouri-Nkam river estuary for a sustainable management program. The hydrological parameters were recorded in eleven stations spanned out on the basis of population density and human activities. Water quality parameters (Temperature, salinity, dissolved oxygen, pH, Total dissolved solutes, Redox potential and conductivity) were collected in subsurface water using a multiple parameter. Surface currents and morphometric (depth and width) parameters were recorded using a drifter, sonar depth and GPS. The field measurements took placed between 18/05/2019 to 08/09/2020 and were divided into six (06) cruises. The data were later subjected to an analysis of variance (ANOVA) and Principle Component Analysis using XLSTAT 2017 (2.7 version) software. Results obtained revealed that, the water quality parameters were spatially more stable notsignficant at (df = 9, p 0.05) with a relatively low temperature (25.5°C - 27°C) during the wet period. The limit of the frontal zone extended to S5 (Bonalokan, 8.25 km from S1) during the snapshot of the dry period, spring ph

关键词： hydrological parameters Water Quality Lunar/Diurnal Tidal Regime Principle Component Analysis (PCA) and Wouri-Nkam River

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