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Dendrometrical Structure and Physicochemical Analysis of Mangrove Sediments from the Nyong River Estuary (Cameroon, Atlantic Coast)

Received: 14 March 2024     Accepted: 7 April 2024     Published: 29 April 2024
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Abstract

Mangrove estuaries are not immune to the threats posed by climate and anthropogenic constraints on aquatic environments. In the Nyong River estuary, mangrove ecotone has capital importance for biodiversity conservation due to its localization in the Douala-Edéa protected area. For this study, seven quadrats were delimited in aim to evaluate mangrove structure and assessed his interplay with sediment and water physicochemical characteristics. The study revealed a total of 120 individuals of 4 regularly encountered species over a distance of 14 km: Rhizophora racemosa, Avicennia germinans, Rhizophora harrisonii and Phoenix reclinata palms. The marshy soils under the mangrove have Total Nitrogen percentages varying between 0.04 and 0.68%. Total Organic Carbon (from 2.20 to 8.61%) and Total Organic Matter (from 3.66 to 14.64%) contents have a similar pattern. The ratios of Carbon and Nitrogen (C/N) reflect the presence of organic matter and plant debris over a large proportion of the estuary. The ratio of Nitrogen and Phosphate (N/P) reflects the low availability of nitrogen in relation to phosphorus. The cation elements evolve on average in the order Ca2+ ˃Mg2+ ˃Na+ ˃K+. This study provides information that would help explore linkages for future research on biogeochemical balance in mangrove sediment and their implementation.

Published in Journal of Water Resources and Ocean Science (Volume 13, Issue 2)
DOI 10.11648/j.wros.20241302.11
Page(s) 23-41
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

Mangroves, Physicochemical Parameters, Sedimentary Physics, Nyong Estuary, National Park Douala-Edea

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    Mama, A. C., Chougong, D. T., Dingong, G. T. A., Bessa, A. Z. E., Dicka, E. H., et al. (2024). Dendrometrical Structure and Physicochemical Analysis of Mangrove Sediments from the Nyong River Estuary (Cameroon, Atlantic Coast). Journal of Water Resources and Ocean Science, 13(2), 23-41. https://doi.org/10.11648/j.wros.20241302.11

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    Mama, A. C.; Chougong, D. T.; Dingong, G. T. A.; Bessa, A. Z. E.; Dicka, E. H., et al. Dendrometrical Structure and Physicochemical Analysis of Mangrove Sediments from the Nyong River Estuary (Cameroon, Atlantic Coast). J. Water Resour. Ocean Sci. 2024, 13(2), 23-41. doi: 10.11648/j.wros.20241302.11

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    Mama AC, Chougong DT, Dingong GTA, Bessa AZE, Dicka EH, et al. Dendrometrical Structure and Physicochemical Analysis of Mangrove Sediments from the Nyong River Estuary (Cameroon, Atlantic Coast). J Water Resour Ocean Sci. 2024;13(2):23-41. doi: 10.11648/j.wros.20241302.11

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  • @article{10.11648/j.wros.20241302.11,
      author = {Anselme Crépin Mama and Durane Tchatchouang Chougong and Ginette Thérèse Atoukoh Dingong and Armel Zacharie Ekoa Bessa and Emmanuel Henock Dicka and Gordon Nwutih Ajonina and Jules Rémi Ngoupayou Ndam},
      title = {Dendrometrical Structure and Physicochemical Analysis of Mangrove Sediments from the Nyong River Estuary (Cameroon, Atlantic Coast)
    },
      journal = {Journal of Water Resources and Ocean Science},
      volume = {13},
      number = {2},
      pages = {23-41},
      doi = {10.11648/j.wros.20241302.11},
      url = {https://doi.org/10.11648/j.wros.20241302.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wros.20241302.11},
      abstract = {Mangrove estuaries are not immune to the threats posed by climate and anthropogenic constraints on aquatic environments. In the Nyong River estuary, mangrove ecotone has capital importance for biodiversity conservation due to its localization in the Douala-Edéa protected area. For this study, seven quadrats were delimited in aim to evaluate mangrove structure and assessed his interplay with sediment and water physicochemical characteristics. The study revealed a total of 120 individuals of 4 regularly encountered species over a distance of 14 km: Rhizophora racemosa, Avicennia germinans, Rhizophora harrisonii and Phoenix reclinata palms. The marshy soils under the mangrove have Total Nitrogen percentages varying between 0.04 and 0.68%. Total Organic Carbon (from 2.20 to 8.61%) and Total Organic Matter (from 3.66 to 14.64%) contents have a similar pattern. The ratios of Carbon and Nitrogen (C/N) reflect the presence of organic matter and plant debris over a large proportion of the estuary. The ratio of Nitrogen and Phosphate (N/P) reflects the low availability of nitrogen in relation to phosphorus. The cation elements evolve on average in the order Ca2+ ˃Mg2+ ˃Na+ ˃K+. This study provides information that would help explore linkages for future research on biogeochemical balance in mangrove sediment and their implementation.
    },
     year = {2024}
    }
    

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  • TY  - JOUR
    T1  - Dendrometrical Structure and Physicochemical Analysis of Mangrove Sediments from the Nyong River Estuary (Cameroon, Atlantic Coast)
    
    AU  - Anselme Crépin Mama
    AU  - Durane Tchatchouang Chougong
    AU  - Ginette Thérèse Atoukoh Dingong
    AU  - Armel Zacharie Ekoa Bessa
    AU  - Emmanuel Henock Dicka
    AU  - Gordon Nwutih Ajonina
    AU  - Jules Rémi Ngoupayou Ndam
    Y1  - 2024/04/29
    PY  - 2024
    N1  - https://doi.org/10.11648/j.wros.20241302.11
    DO  - 10.11648/j.wros.20241302.11
    T2  - Journal of Water Resources and Ocean Science
    JF  - Journal of Water Resources and Ocean Science
    JO  - Journal of Water Resources and Ocean Science
    SP  - 23
    EP  - 41
    PB  - Science Publishing Group
    SN  - 2328-7993
    UR  - https://doi.org/10.11648/j.wros.20241302.11
    AB  - Mangrove estuaries are not immune to the threats posed by climate and anthropogenic constraints on aquatic environments. In the Nyong River estuary, mangrove ecotone has capital importance for biodiversity conservation due to its localization in the Douala-Edéa protected area. For this study, seven quadrats were delimited in aim to evaluate mangrove structure and assessed his interplay with sediment and water physicochemical characteristics. The study revealed a total of 120 individuals of 4 regularly encountered species over a distance of 14 km: Rhizophora racemosa, Avicennia germinans, Rhizophora harrisonii and Phoenix reclinata palms. The marshy soils under the mangrove have Total Nitrogen percentages varying between 0.04 and 0.68%. Total Organic Carbon (from 2.20 to 8.61%) and Total Organic Matter (from 3.66 to 14.64%) contents have a similar pattern. The ratios of Carbon and Nitrogen (C/N) reflect the presence of organic matter and plant debris over a large proportion of the estuary. The ratio of Nitrogen and Phosphate (N/P) reflects the low availability of nitrogen in relation to phosphorus. The cation elements evolve on average in the order Ca2+ ˃Mg2+ ˃Na+ ˃K+. This study provides information that would help explore linkages for future research on biogeochemical balance in mangrove sediment and their implementation.
    
    VL  - 13
    IS  - 2
    ER  - 

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Author Information
  • Department of Oceanography, Institute of Fisheries and Aquatic Sciences, The University of Douala, Douala, Cameroon; Association of Professionals in Coastal and Aquatics Management, Kribi, Cameroon

  • Association of Professionals in Coastal and Aquatics Management, Kribi, Cameroon; Fisheries Research Laboratory, Agricultural Research Institute for Development, Kribi, Cameroon

  • Department of Oceanography, Institute of Fisheries and Aquatic Sciences, The University of Douala, Douala, Cameroon; Association of Professionals in Coastal and Aquatics Management, Kribi, Cameroon

  • Institute of Earth Sciences, University of Lausanne, Lausanne, Switzerland; Department of Earth Sciences and Environment, Higher Teacher Training College, University of Bertoua, Bertoua, Cameroon

  • Fisheries Research Laboratory, Agricultural Research Institute for Development, Kribi, Cameroon

  • Department of Oceanography, Institute of Fisheries and Aquatic Sciences, The University of Douala, Douala, Cameroon

  • Department of Earth Sciences, University of Yaoundé I, Yaoundé, Cameroon

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