Volume 31, Issue 1, November 2020, Pages 14–20
Assemian-Niango Sylvie1, Sévérine Estelle Konan2, and Jean-marie Konan Kouakou3
1 Centre de Recherches Océanologiques (CRO), BP V 18 Abidjan, Côte d’Ivoire
2 Center of Oceanological Research (C.O.R.), BP V 18 Abidjan, Côte d’Ivoire
3 Central Laboratory of Agrochemistry and Ecotoxicology (C.L.A.E.), 04 BP 612 Abidjan, Côte d’Ivoire
Original language: English
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In response to many anthropogenic pressures on Aby lagoon, the aim of this study is to determine, according to seasons, physicochemical characteristics and nutrients content of lagoon waters. To do this, from September 2007 to July 2009, during monthly sampling campaigns, physico-chemical parameters such as temperature, salinity, conductivity, pH and transparency of waters of lagoon were measured, in situ, at twenty (20) stations distributed along lagoon. Water samples were collected at these stations, at the depth of 0.2 m below the surface, to determine in laboratory levels of dissolved oxygen and nutrients such as orthophosphate, nitrite, nitrate and ammonium, using standard methods. Statistical treatments were performed using XLSTAT 7.5 software. Data processed, using Friedman test, show significant seasonal differences between physico-chemical parameters and nutrients of lagoon waters.
Author Keywords: Rainy season, Dry season, Physicochemical characteristic, water samples, Tropical lagoon, Aby lagoon, Côte d’Ivoire.
Assemian-Niango Sylvie1, Sévérine Estelle Konan2, and Jean-marie Konan Kouakou3
1 Centre de Recherches Océanologiques (CRO), BP V 18 Abidjan, Côte d’Ivoire
2 Center of Oceanological Research (C.O.R.), BP V 18 Abidjan, Côte d’Ivoire
3 Central Laboratory of Agrochemistry and Ecotoxicology (C.L.A.E.), 04 BP 612 Abidjan, Côte d’Ivoire
Original language: English
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
In response to many anthropogenic pressures on Aby lagoon, the aim of this study is to determine, according to seasons, physicochemical characteristics and nutrients content of lagoon waters. To do this, from September 2007 to July 2009, during monthly sampling campaigns, physico-chemical parameters such as temperature, salinity, conductivity, pH and transparency of waters of lagoon were measured, in situ, at twenty (20) stations distributed along lagoon. Water samples were collected at these stations, at the depth of 0.2 m below the surface, to determine in laboratory levels of dissolved oxygen and nutrients such as orthophosphate, nitrite, nitrate and ammonium, using standard methods. Statistical treatments were performed using XLSTAT 7.5 software. Data processed, using Friedman test, show significant seasonal differences between physico-chemical parameters and nutrients of lagoon waters.
Author Keywords: Rainy season, Dry season, Physicochemical characteristic, water samples, Tropical lagoon, Aby lagoon, Côte d’Ivoire.
How to Cite this Article
Assemian-Niango Sylvie, Sévérine Estelle Konan, and Jean-marie Konan Kouakou, “Seasonal variations of physicochemical parameters and nutrients of a coastal tropical lagoon’s waters: Aby lagoon (Côte d’Ivoire),” International Journal of Innovation and Applied Studies, vol. 31, no. 1, pp. 14–20, November 2020.
