Volume 46, Issue 4, October 2025, Pages 670–675



LOZO Roméo N’Guessan1, KOMOE Koffi2, and KONAN Estelle Sévérine3
1 Félix Houphouët-Boigny University, Laboratory of Natural Environments and Biodiversity Conservation, UFR Biosciences, 22 BP 582 Abidjan, Côte d’Ivoire
2 Félix Houphouët-Boigny University, Laboratory of Natural Environments and Biodiversity Conservation, UFR Biosciences, 22 BP 582 Abidjan, Côte d’Ivoire
3 Oceanological Research Center, BP V 18 Abidjan, Côte d’Ivoire
Original language: English
Copyright © 2025 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.
Most major urban centers in Sub-Saharan Africa are located along the shores of estuaries, lakes, or lagoons which, due to their high biodiversity, are often subjected to significant anthropogenic pressures, particularly waste pollution. This study aims to analyze the phytoplankton community structure of the Ebrié Lagoon, an ecosystem heavily impacted by human activities. Phytoplankton samples were collected between February and November 2020 using a 20-µm mesh plankton net, targeting specific areas of the lagoon exposed to intense anthropogenic pressure. A total of 53 taxa belonging to five phyla were identified: Heterokontophyta, Dinophyta, Cyanoprokaryota, Euglenophyta, and Chlorophyta. Among these groups, Heterokontophyta exhibited the highest diversity, accounting for 58% of the total abundance. Furthermore, Cocody Bay emerged as the most biodiverse site, with 45 species recorded, representing 46% of all identified taxa. These findings highlight the ecological importance of the Ébrié Lagoon as a phytoplankton habitat and emphasize the urgent need for management strategies to safeguard this fragile ecosystem against increasing urbanization.
Author Keywords: composition, phytoplankton, bays, Ébrié Lagoon, Côte d’Ivoire.



LOZO Roméo N’Guessan1, KOMOE Koffi2, and KONAN Estelle Sévérine3
1 Félix Houphouët-Boigny University, Laboratory of Natural Environments and Biodiversity Conservation, UFR Biosciences, 22 BP 582 Abidjan, Côte d’Ivoire
2 Félix Houphouët-Boigny University, Laboratory of Natural Environments and Biodiversity Conservation, UFR Biosciences, 22 BP 582 Abidjan, Côte d’Ivoire
3 Oceanological Research Center, BP V 18 Abidjan, Côte d’Ivoire
Original language: English
Copyright © 2025 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
Most major urban centers in Sub-Saharan Africa are located along the shores of estuaries, lakes, or lagoons which, due to their high biodiversity, are often subjected to significant anthropogenic pressures, particularly waste pollution. This study aims to analyze the phytoplankton community structure of the Ebrié Lagoon, an ecosystem heavily impacted by human activities. Phytoplankton samples were collected between February and November 2020 using a 20-µm mesh plankton net, targeting specific areas of the lagoon exposed to intense anthropogenic pressure. A total of 53 taxa belonging to five phyla were identified: Heterokontophyta, Dinophyta, Cyanoprokaryota, Euglenophyta, and Chlorophyta. Among these groups, Heterokontophyta exhibited the highest diversity, accounting for 58% of the total abundance. Furthermore, Cocody Bay emerged as the most biodiverse site, with 45 species recorded, representing 46% of all identified taxa. These findings highlight the ecological importance of the Ébrié Lagoon as a phytoplankton habitat and emphasize the urgent need for management strategies to safeguard this fragile ecosystem against increasing urbanization.
Author Keywords: composition, phytoplankton, bays, Ébrié Lagoon, Côte d’Ivoire.
How to Cite this Article
LOZO Roméo N’Guessan, KOMOE Koffi, and KONAN Estelle Sévérine, “Study of Phytoplankton Composition in the Bays of Plateau, Cocody, Koumassi, and Vridi, Located in the Ébrié Lagoon, Côte d’Ivoire,” International Journal of Innovation and Applied Studies, vol. 46, no. 4, pp. 670–675, October 2025.