Zooplankton Diversity in the Bay of Tabounssou: The Case of Faban Estuary, Guinea
On the Guinean coast, about 218 planktonic species are encountered among which, 184 species of zooplankton belonging to 60 families have been identified and copepods alone represent 63%. In the Faban estuary, fish larvae are the only group generally exploited. Fishing is carried out by men using the hawk net with small meshes. Women are the most involved in this activity, they ensure the processing and marketing of the products.
A total of twenty-seven (27) zooplankton and water samples were collected and analyzed. The various field observations and laboratory analyses revealed 21 taxa, fourteen (14) of which belonged to the Crustacean phylum, two (2) to the Chaetognathes phylum, one (1) to the Cnidaria phylum and four (4) to the Vertebrate phylum. In terms of abundance, copepods are the most represented (57%) followed by Zoes (20%) and jellyfish (10%). The zooplankton population is unevenly distributed across the stations and this distribution is governed by environmental parameters.
The analysis of water samples taken has identified variations in certain environmental parameters. In contrast to salinity, which averaged 14.23 g/l, temperature and turbidity decreased from upstream to downstream, with averages of 26.86°C and 33.47 NTU respectively, while the highest values for pH (7.92) and dissolved oxygen (6.71) were observed in September at Stations 2 and 3, respectively.
Keywords: Zooplankton Diversity, Bay of Tabounssou, environmental parameters, pH, dissolved oxygen
2- Banse K. Zooplankton: Pivotal role in the control of ocean production: I. Biomass and production. ICES Journal of Marine Science 1995; 52(3-4) 265–277, https://doi.org/10.1016/1054-3139(95)80043-3
3- Ouedraogo I, Oueda A, Gneme A, Sirima D, Zongo F, Guenda W, Kabre GB. Spatial distribution and influence of some physico-chemical factors on Zooplankton in two urban reservoirs (Ouagadougou, Burkina Faso). 2015
4- Guinee/PNUE. National Report on the Marine and Coastal Environment, November 2006.
5- Demory D. Impact of temperature on phytoplankton and its interactions with viruses. 2017; Available at https://tel.archives-ouvertes.fr/tel-01653093/document. Accessed 12/08/2018. Pp 194.
6- DIOUF PS, DIALLO A. Spatial and temporal variations of zooplankton in a hyperhaline estuary: Casamance. Rev. Hycfrobiol. hop. 1987; 20 (3-4):257-269.
7- Derwich E, Benaabidate L, Zian A, Sadki O, Belghity D.. Physico-chemical characterization of the waters of the alluvial groundwater of upper Sebou downstream of its confluence with OUED FES. Larhyss J. 2010; 08:101-112 7.
8- Faro N, Diallo O, Diallo MM. Evaluation of the socio-economic contribution of fisheries to Gross Domestic Product and rural development, 2005; version 3 (in french)
9- Adandedjan D, Makponse E, Hinvi LC, Laleye P. Preliminary data on the diversity of zooplankton in Lake Nokoué (South Benin), J. Appl. Biosci. 2017; 115:11476 - 11489. (French version)
10- Pezennec O. Environnement hydro-climatique de la Guinée. In: Domain F. et al. (éds),– La pêche côtière en Guinée : ressources et exploitation. IRD édition, Paris, Collection colloques et séminaire, 1999; 7-27.
11- Pandaré, D, Tamoïkine, MY. Study of ichthyo plankton in coastal and estuarine waters bordered by mangroves in Guinea and Senegal. In: Mangrove dynamics and use in southern river countries (du Sénégal à la Sierra Leone). Marie Christine, Cormier Salem, ORSTOM, 1994.
12- Diané I, F Doumbouya, ML Bamy. Influence des activités anthropiques sur le fonctionnement hydrodyna.mique de a Baie de Sangaréyah (Dubréka/Guinée) Ministère de la pêche et de l' economie maritime, 2006.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).