Volume 26, Issue 4, July 2019, Pages 992–1003
Babopie Raymonde Dion1, Kouadio Justin Konan2, Laurince Michel Yapo3, and Philippe Kouassi KOUASSI4
1 Laboratoire Ecologie Tropicale, UFR Biosciences, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d'Ivoire
2 Centre de Recherches Océanologiques, BP V 18 Abidjan, Côte d'Ivoire
3 Université Péléforo Gon Coulibaly, BP 1328 Korhogo, Côte d'Ivoire
4 Laboratory of Zoology andAnimal Biology, Felix Houphouet-Boigny University, Abidjan, 22 BP 582 Abidjan 22, Côte d'Ivoire
Original language: English
Copyright © 2019 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.
The study was conducted to assess the spatial and seasonal variations of macroinvertebrates into two small marginal lagoons in the South-eastern of Côte d’Ivoire. Macroinvertebrates were obtained monthly using a hand net, a van veen grab and an artificial trap from September 2015 to August 2016. Physical and chemical parameters were quantified using standard methods of analysis. Analysis of the physical and chemical parameters in both lagoons showed significant seasonal variation, except for pH, nitrite and ammonium. We identified 145 and 105 macroinvertebrate species composed of aquatic Insects, Achaeta, Gastropoda, Crustacea and Arachnida respectively in Ono and Hébé lagoons. Megaloptera, Amphipoda and Basommatophora were only found in Ono lagoon whereas Lepidoptera was only present in Hébé lagoon. The highest values were found in dry season (127 taxa) and rainy season (126 taxa) in Ono lagoon whereas in Hébé lagoon, the highest values were found in dry season (93 taxa). The Shannon diversity index and evenness values of 3.72-4.25 and 0.84-0.91 respectively in both lagoons indicate that the macroinvertebrate stands are relatively diversified and balanced. However, the increase of anthropogenic disturbances on these lagoons constituted a real threat of the macroinvertebrates at long term.
Author Keywords: Diversity indices, macroinvertebrates, rarefied richness, seasons, lagoon, Côte d’Ivoire.
Babopie Raymonde Dion1, Kouadio Justin Konan2, Laurince Michel Yapo3, and Philippe Kouassi KOUASSI4
1 Laboratoire Ecologie Tropicale, UFR Biosciences, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d'Ivoire
2 Centre de Recherches Océanologiques, BP V 18 Abidjan, Côte d'Ivoire
3 Université Péléforo Gon Coulibaly, BP 1328 Korhogo, Côte d'Ivoire
4 Laboratory of Zoology andAnimal Biology, Felix Houphouet-Boigny University, Abidjan, 22 BP 582 Abidjan 22, Côte d'Ivoire
Original language: English
Copyright © 2019 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
The study was conducted to assess the spatial and seasonal variations of macroinvertebrates into two small marginal lagoons in the South-eastern of Côte d’Ivoire. Macroinvertebrates were obtained monthly using a hand net, a van veen grab and an artificial trap from September 2015 to August 2016. Physical and chemical parameters were quantified using standard methods of analysis. Analysis of the physical and chemical parameters in both lagoons showed significant seasonal variation, except for pH, nitrite and ammonium. We identified 145 and 105 macroinvertebrate species composed of aquatic Insects, Achaeta, Gastropoda, Crustacea and Arachnida respectively in Ono and Hébé lagoons. Megaloptera, Amphipoda and Basommatophora were only found in Ono lagoon whereas Lepidoptera was only present in Hébé lagoon. The highest values were found in dry season (127 taxa) and rainy season (126 taxa) in Ono lagoon whereas in Hébé lagoon, the highest values were found in dry season (93 taxa). The Shannon diversity index and evenness values of 3.72-4.25 and 0.84-0.91 respectively in both lagoons indicate that the macroinvertebrate stands are relatively diversified and balanced. However, the increase of anthropogenic disturbances on these lagoons constituted a real threat of the macroinvertebrates at long term.
Author Keywords: Diversity indices, macroinvertebrates, rarefied richness, seasons, lagoon, Côte d’Ivoire.
How to Cite this Article
Babopie Raymonde Dion, Kouadio Justin Konan, Laurince Michel Yapo, and Philippe Kouassi KOUASSI, “Taxonomic diversity and structure of Macroinvertebrates in two small marginal lagoons of the South-eastern of Côte d’Ivoire,” International Journal of Innovation and Applied Studies, vol. 26, no. 4, pp. 992–1003, July 2019.
