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Seasonal Variability of Sea Surface Temperature and Chlorophyll Concentration and Its Correlation with Pelagic Fish Catch in Senegalese Exclusive Economic Zone (EEZ)

Received: 24 August 2021    Accepted: 28 September 2021    Published: 21 October 2021
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Abstract

Remote sensing data were used in this study to relate the biophysical characteristics of the ocean and their relationship with the coastal pelagic fish catches in the Senegalese Exclusive Economic Zone (EEZ) from 2003 to 2017. Level 3 (4 km) monthly sea surface temperature (SST), chlorophyll (Chl-a) data from the Moderate Resolution Imaging Spectroradiometer Satellite (MODIS-Aqua) and statistics fishing data were used. These biophysical parameters associated to coastal upwelling index and turbulence water index allowed to characterise availability of fish. The monthly average variation of the biophysical parameters shows a close relation between chlorophyll concentration, sea surface temperature and the pelagic species availability. The results showed that satellite variables are directly related, with high chlorophyll-a concentrations and high upwelling intensities corresponding to low ocean surface temperature. The analysis of intra-annual variations shows the identification of two distinct seasons. A cold season from November to May, marked by an intense upwelling, corresponding to a high concentration of chlorophyll and high upwelling intensity with very high landings of coastal pelagic species. A warm season from June to October corresponding to a low concentration of chlorophyll and a decrease in the intensity of upwelling with low landing values. A hot season extending from June to October, corresponds to a low concentration of chlorophyll-a and a decrease in intensity of upwelling with low landing values.

Published in Agriculture, Forestry and Fisheries (Volume 10, Issue 5)
DOI 10.11648/j.aff.20211005.12
Page(s) 176-182
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), 2021. Published by Science Publishing Group

Keywords

Sea Surface Temperature (SST), Chlorophyll Concentration (Chl-a), MODIS Data, Small Pelagic Species, Senegal EEZ

References
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Cite This Article
  • APA Style

    Jeanne Maffoué Kouadio, Waly Ndiaye, Ahon Jean-Baptiste Kassi, Tacko Niang, Eric Valére Djagoua, et al. (2021). Seasonal Variability of Sea Surface Temperature and Chlorophyll Concentration and Its Correlation with Pelagic Fish Catch in Senegalese Exclusive Economic Zone (EEZ). Agriculture, Forestry and Fisheries, 10(5), 176-182. https://doi.org/10.11648/j.aff.20211005.12

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    ACS Style

    Jeanne Maffoué Kouadio; Waly Ndiaye; Ahon Jean-Baptiste Kassi; Tacko Niang; Eric Valére Djagoua, et al. Seasonal Variability of Sea Surface Temperature and Chlorophyll Concentration and Its Correlation with Pelagic Fish Catch in Senegalese Exclusive Economic Zone (EEZ). Agric. For. Fish. 2021, 10(5), 176-182. doi: 10.11648/j.aff.20211005.12

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    AMA Style

    Jeanne Maffoué Kouadio, Waly Ndiaye, Ahon Jean-Baptiste Kassi, Tacko Niang, Eric Valére Djagoua, et al. Seasonal Variability of Sea Surface Temperature and Chlorophyll Concentration and Its Correlation with Pelagic Fish Catch in Senegalese Exclusive Economic Zone (EEZ). Agric For Fish. 2021;10(5):176-182. doi: 10.11648/j.aff.20211005.12

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  • @article{10.11648/j.aff.20211005.12,
      author = {Jeanne Maffoué Kouadio and Waly Ndiaye and Ahon Jean-Baptiste Kassi and Tacko Niang and Eric Valére Djagoua and Abdou Aziz Diouf},
      title = {Seasonal Variability of Sea Surface Temperature and Chlorophyll Concentration and Its Correlation with Pelagic Fish Catch in Senegalese Exclusive Economic Zone (EEZ)},
      journal = {Agriculture, Forestry and Fisheries},
      volume = {10},
      number = {5},
      pages = {176-182},
      doi = {10.11648/j.aff.20211005.12},
      url = {https://doi.org/10.11648/j.aff.20211005.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aff.20211005.12},
      abstract = {Remote sensing data were used in this study to relate the biophysical characteristics of the ocean and their relationship with the coastal pelagic fish catches in the Senegalese Exclusive Economic Zone (EEZ) from 2003 to 2017. Level 3 (4 km) monthly sea surface temperature (SST), chlorophyll (Chl-a) data from the Moderate Resolution Imaging Spectroradiometer Satellite (MODIS-Aqua) and statistics fishing data were used. These biophysical parameters associated to coastal upwelling index and turbulence water index allowed to characterise availability of fish. The monthly average variation of the biophysical parameters shows a close relation between chlorophyll concentration, sea surface temperature and the pelagic species availability. The results showed that satellite variables are directly related, with high chlorophyll-a concentrations and high upwelling intensities corresponding to low ocean surface temperature. The analysis of intra-annual variations shows the identification of two distinct seasons. A cold season from November to May, marked by an intense upwelling, corresponding to a high concentration of chlorophyll and high upwelling intensity with very high landings of coastal pelagic species. A warm season from June to October corresponding to a low concentration of chlorophyll and a decrease in the intensity of upwelling with low landing values. A hot season extending from June to October, corresponds to a low concentration of chlorophyll-a and a decrease in intensity of upwelling with low landing values.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Seasonal Variability of Sea Surface Temperature and Chlorophyll Concentration and Its Correlation with Pelagic Fish Catch in Senegalese Exclusive Economic Zone (EEZ)
    AU  - Jeanne Maffoué Kouadio
    AU  - Waly Ndiaye
    AU  - Ahon Jean-Baptiste Kassi
    AU  - Tacko Niang
    AU  - Eric Valére Djagoua
    AU  - Abdou Aziz Diouf
    Y1  - 2021/10/21
    PY  - 2021
    N1  - https://doi.org/10.11648/j.aff.20211005.12
    DO  - 10.11648/j.aff.20211005.12
    T2  - Agriculture, Forestry and Fisheries
    JF  - Agriculture, Forestry and Fisheries
    JO  - Agriculture, Forestry and Fisheries
    SP  - 176
    EP  - 182
    PB  - Science Publishing Group
    SN  - 2328-5648
    UR  - https://doi.org/10.11648/j.aff.20211005.12
    AB  - Remote sensing data were used in this study to relate the biophysical characteristics of the ocean and their relationship with the coastal pelagic fish catches in the Senegalese Exclusive Economic Zone (EEZ) from 2003 to 2017. Level 3 (4 km) monthly sea surface temperature (SST), chlorophyll (Chl-a) data from the Moderate Resolution Imaging Spectroradiometer Satellite (MODIS-Aqua) and statistics fishing data were used. These biophysical parameters associated to coastal upwelling index and turbulence water index allowed to characterise availability of fish. The monthly average variation of the biophysical parameters shows a close relation between chlorophyll concentration, sea surface temperature and the pelagic species availability. The results showed that satellite variables are directly related, with high chlorophyll-a concentrations and high upwelling intensities corresponding to low ocean surface temperature. The analysis of intra-annual variations shows the identification of two distinct seasons. A cold season from November to May, marked by an intense upwelling, corresponding to a high concentration of chlorophyll and high upwelling intensity with very high landings of coastal pelagic species. A warm season from June to October corresponding to a low concentration of chlorophyll and a decrease in the intensity of upwelling with low landing values. A hot season extending from June to October, corresponds to a low concentration of chlorophyll-a and a decrease in intensity of upwelling with low landing values.
    VL  - 10
    IS  - 5
    ER  - 

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Author Information
  • Center for Research and Application in Remote Sensing, Felix Houphou?t-Boigny University, Abidjan, C?te d’Ivoire

  • Institute of Fisheries and Aquaculture, Cheikh Anta Diop University of Dakar, Dakar, Senegal

  • Center for Research and Application in Remote Sensing, Felix Houphou?t-Boigny University, Abidjan, C?te d’Ivoire

  • Ecological Monitoring Center, Dakar, Senegal

  • Center for Research and Application in Remote Sensing, Felix Houphou?t-Boigny University, Abidjan, C?te d’Ivoire

  • Ecological Monitoring Center, Dakar, Senegal

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