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Dynamics of the Estuarine Zone of the Ebrié Lagoon (Abidjan - Ivory Coast) and Transparency Prediction

Received: 16 May 2023    Accepted: 6 June 2023    Published: 15 June 2023
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Abstract

In order to contribute to the effective fight against eutrophication of the Ebrié lagoon estuarine waters, the present study proposed a mathematical model to predict water transparency based on five physico-chemical descriptors (temperature, dissolved oxygen, nitric nitrogen N-NO3-, nitrous nitrogen N-NO2- and ammoniacal nitrogen N-NH4+). On twenty-seven (27) water samples collected from 2014 to 2015, in situ measurements and physico-chemical analyses were carried out based on French standards. All the data collected was subjected to a multiple linear regression analysis. The proposed linear model is accredited with good statistical indicators. These statistical indicators revealed effective predictions with a coefficient of determination (R2 = 0.9308) close to one; a standard deviation (RMSE = 0.1311) of less than 0.3; a cross-validation coefficient of determination (Q2CV = 0.9256) of more than 0.9; and a Fischer test p-value of less than 0.0001. Furthermore, the values of the ratio of theoretical to experimental transparency of the validation set tend towards one. The results obtained suggest that the combination of these 5 descriptors could be useful for predicting transparency. Moreover, dissolved oxygen is the priority descriptor for the prediction of the transparency of the Ebrié lagoon, although the influence of the other descriptors is not less important.

Published in International Journal of Environmental Protection and Policy (Volume 11, Issue 3)
DOI 10.11648/j.ijepp.20231103.12
Page(s) 49-56
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Ebrié Lagoon, Eutrophication, Modelling, Multiple Linear Regression, Physico-Chemical Descriptors, Transparency

References
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  • APA Style

    Akilinon Gansso Valentin, Kombo Mananga Olivier Simon, Kpidi Yapo Habib, Yapo Ossey Bernard. (2023). Dynamics of the Estuarine Zone of the Ebrié Lagoon (Abidjan - Ivory Coast) and Transparency Prediction. International Journal of Environmental Protection and Policy, 11(3), 49-56. https://doi.org/10.11648/j.ijepp.20231103.12

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    ACS Style

    Akilinon Gansso Valentin; Kombo Mananga Olivier Simon; Kpidi Yapo Habib; Yapo Ossey Bernard. Dynamics of the Estuarine Zone of the Ebrié Lagoon (Abidjan - Ivory Coast) and Transparency Prediction. Int. J. Environ. Prot. Policy 2023, 11(3), 49-56. doi: 10.11648/j.ijepp.20231103.12

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    AMA Style

    Akilinon Gansso Valentin, Kombo Mananga Olivier Simon, Kpidi Yapo Habib, Yapo Ossey Bernard. Dynamics of the Estuarine Zone of the Ebrié Lagoon (Abidjan - Ivory Coast) and Transparency Prediction. Int J Environ Prot Policy. 2023;11(3):49-56. doi: 10.11648/j.ijepp.20231103.12

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  • @article{10.11648/j.ijepp.20231103.12,
      author = {Akilinon Gansso Valentin and Kombo Mananga Olivier Simon and Kpidi Yapo Habib and Yapo Ossey Bernard},
      title = {Dynamics of the Estuarine Zone of the Ebrié Lagoon (Abidjan - Ivory Coast) and Transparency Prediction},
      journal = {International Journal of Environmental Protection and Policy},
      volume = {11},
      number = {3},
      pages = {49-56},
      doi = {10.11648/j.ijepp.20231103.12},
      url = {https://doi.org/10.11648/j.ijepp.20231103.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepp.20231103.12},
      abstract = {In order to contribute to the effective fight against eutrophication of the Ebrié lagoon estuarine waters, the present study proposed a mathematical model to predict water transparency based on five physico-chemical descriptors (temperature, dissolved oxygen, nitric nitrogen N-NO3-, nitrous nitrogen N-NO2- and ammoniacal nitrogen N-NH4+). On twenty-seven (27) water samples collected from 2014 to 2015, in situ measurements and physico-chemical analyses were carried out based on French standards. All the data collected was subjected to a multiple linear regression analysis. The proposed linear model is accredited with good statistical indicators. These statistical indicators revealed effective predictions with a coefficient of determination (R2 = 0.9308) close to one; a standard deviation (RMSE = 0.1311) of less than 0.3; a cross-validation coefficient of determination (Q2CV = 0.9256) of more than 0.9; and a Fischer test p-value of less than 0.0001. Furthermore, the values of the ratio of theoretical to experimental transparency of the validation set tend towards one. The results obtained suggest that the combination of these 5 descriptors could be useful for predicting transparency. Moreover, dissolved oxygen is the priority descriptor for the prediction of the transparency of the Ebrié lagoon, although the influence of the other descriptors is not less important.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Dynamics of the Estuarine Zone of the Ebrié Lagoon (Abidjan - Ivory Coast) and Transparency Prediction
    AU  - Akilinon Gansso Valentin
    AU  - Kombo Mananga Olivier Simon
    AU  - Kpidi Yapo Habib
    AU  - Yapo Ossey Bernard
    Y1  - 2023/06/15
    PY  - 2023
    N1  - https://doi.org/10.11648/j.ijepp.20231103.12
    DO  - 10.11648/j.ijepp.20231103.12
    T2  - International Journal of Environmental Protection and Policy
    JF  - International Journal of Environmental Protection and Policy
    JO  - International Journal of Environmental Protection and Policy
    SP  - 49
    EP  - 56
    PB  - Science Publishing Group
    SN  - 2330-7536
    UR  - https://doi.org/10.11648/j.ijepp.20231103.12
    AB  - In order to contribute to the effective fight against eutrophication of the Ebrié lagoon estuarine waters, the present study proposed a mathematical model to predict water transparency based on five physico-chemical descriptors (temperature, dissolved oxygen, nitric nitrogen N-NO3-, nitrous nitrogen N-NO2- and ammoniacal nitrogen N-NH4+). On twenty-seven (27) water samples collected from 2014 to 2015, in situ measurements and physico-chemical analyses were carried out based on French standards. All the data collected was subjected to a multiple linear regression analysis. The proposed linear model is accredited with good statistical indicators. These statistical indicators revealed effective predictions with a coefficient of determination (R2 = 0.9308) close to one; a standard deviation (RMSE = 0.1311) of less than 0.3; a cross-validation coefficient of determination (Q2CV = 0.9256) of more than 0.9; and a Fischer test p-value of less than 0.0001. Furthermore, the values of the ratio of theoretical to experimental transparency of the validation set tend towards one. The results obtained suggest that the combination of these 5 descriptors could be useful for predicting transparency. Moreover, dissolved oxygen is the priority descriptor for the prediction of the transparency of the Ebrié lagoon, although the influence of the other descriptors is not less important.
    VL  - 11
    IS  - 3
    ER  - 

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Author Information
  • Science and Technology Department, Alassane Ouattara University, Bouaké, Ivory Coast

  • Environmental Sciences Laboratory, Environmental Sciences and Management Department, Nangui Abrogoua University, Abidjan, Ivory Coast

  • Environmental Sciences Laboratory, Environmental Sciences and Management Department, Nangui Abrogoua University, Abidjan, Ivory Coast

  • Environmental Sciences Laboratory, Environmental Sciences and Management Department, Nangui Abrogoua University, Abidjan, Ivory Coast

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