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Anthropogenic impacts on water quality and macroinvertebrates distribution of Toho Lake, South-West Benin

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Research Paper 01/12/2018
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Anthropogenic impacts on water quality and macroinvertebrates distribution of Toho Lake, South-West Benin

Delphine Adandedjan, Thierry Matinkpon Agblonon Houelome, Simon Ahouansou Montcho, Espérat Hounkpe, Philippe A. Laleye
J. Bio. Env. Sci.13( 6), 152-165, December 2018.
Certificate: JBES 2018 [Generate Certificate]
Key: Anthropogenic activitiesBeninBenthic macroinvertebratesToho Lake

Abstract

The impact of the anthropogenic activities on the distribution of the macrobenthic organisms of Toho Lake was conducted. Ten physico-chemical parameters were measured and benthic organisms were collected from May to August 2016 at 8 stations with an Eckman grab. The auto-organizing map SOM was used to determine the similarity between stations according to the environmental variables. (species richness, relative abundance, Shannon-Weiner and Pielou’ equitabiliy indices). Abundance-biomass Comparison (ABC) indices, Difference in Area by Percent² (DAP) and Shannon-Wiener Equitability Proportion (SEP) were used to reveal ecological stress in the lake In total, 23 species of macroinvertebrates gathering into18226 individuals divided into 4 classes (Insects, Gastropoda, Achaeta and Arachnids) were inventoried. The insects (20 species representing 91% of the specific richness and 99. 01% of the total individuals) had largely dominated this fauna with one species, Enithares sp.. Few water parameters (water transparency (40 – 90 cm), water temperature (26.50 – 30.3 °C), conductivity (213 – 350 mS/cm) and dissolved oxygen (1.75 – 6.06 mg/L)) varied significantly in time whereas depth (0.60 – 1.68 m)showed spatial variation. Three clusters, discriminated by SOM analysis revealed stresses on the organisms. The feeble values of Shannon and equitability indexes and the stress’ index calculated have largely supported the impacts of anthropogenic activities on the distribution of species dominated by few taxa showed to be indicators of the ecological status of this ecosystem.

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Adandédjan D, Lalèyè P, Gourène G. 2012. Macroinvertebrates communities of a coastal lagoon in southern Benin, West Africa. International. Journal of Biological and Chemical Sciences 6(3), 1233-1252.

Adandédjan D, Ahouansou Montcho S, Chikou A, Lalèyè P, Gourène G. 2013.Caractérisation des peuplements de macroinvertébrés benthiques à l’aide de la carte auto-organisatrice (SOM). ComptesRendus Biologies 336, 244-248.

AgblononHouélomè TM, Adandédjan D, Chikou A, Imorou Toko I, Bonou C, Youssao I, Lalèyè P. 2016. Evaluation de la qualité des eaux des ruisseaux du cours moyen de la rivière Alibori par l’étude des macro-invertébrésbenthiques dans le bassin cotonnier du Bénin (Afrique de l’Ouest). International. Journal of Biological and Chemical Sciences 10(6), 2461-2476.

Ahouansou Montcho S. 2003. Etude de l’écologie et de la production halieutique du lac Toho au Bénin. Mémoire de DESS, Faculté des Sciences Agronomiques, Université d’Abomey-Calavi. 41-42.

Ahouansou Montcho S, Lalèyè P. 2008. Some aspects of biology of Oreochromis niloticus L. (Perciformes: Cichlidae) recently introduced in Lake Toho (Benin, West Africa) International. Journal of Biological and Chemical Sciences 2(1), 114-122.

Alhoniemi E, Himberg J, Parhankangas J,   Vesanto J. 2000. SOM Toolbox. www.cishut.Fi/projects/somtoolbox

Azrina MZ, Yap CH, Rahim Ismaël A, Ismaël A, Tan SG. 2006. Anthropogenic impacts on the distribution and biodiversity of benthic macro invertebrates and water quality of the Langat River, Peninsular Malaysia. Ecotoxicology and Environmental Safety 64, 337-346.

Barbou MT, Gerritsen J, Snyder BD, Stribling 1999. Rapid Bio-assessment Protocols for Use in Streams and Wadeable Rivers: Periphyton, Benthic Macroinvertebrates and Fish. (2ndedn) U.S. Environmental Protection Agency, Office of Water, Washington, DC, USA. WA. EPA 841-B-99-002.

Costil K. 1998. Etude du macrozoobenthos du chenal de la Seine de Tancarville à Rouen. Laboratoire de Biologie et Biotechnologies Marines (IBBA) Université de Caen.

Cui YD, Liu XQ, Wang HZ. 2008. Macrozoobenthic community of Fluxian Lake, the deepest lake of Southwest China.Limnologica 38(2), 116 -125.

Gnohossou PM. 2006. La faune benthique d’une lagune ouest africaine (le Lac Nokoué au Bénin), diversité, abondance, variations temporelles et spatiales, place dans la chaîne trophique. Thèse de Doctorat. Institut National Polytechnique de Toulouse. Formation doctorale : SEVAB. 169 p.

Grassé PP, Doumenc D. 1993. Zoologie. I-Invertébrés 4ème Edition Masson. 178-180 p.

Guérin JP, Massé H. 1976. Etude expérimentale sur le recrutement des espèces de la macrofaune benthique des substrats meubles. 1-Méthodologie-données qualitatives et quantitatives. Tethys 8, 151-168.

Hellawell JM. 1986. Biological Indicators of Freshwater Pollution and Environmental Management. Elsevier, London.

Kohonen T. 1982. Self-organized formation of topologically correct feature maps.Biology Cybernet 43, 59–69.

Mancinelli G, Sabetta L, Basset A. 2005. Short-term patch dynamics of macroinvertebrate colonization on decaying reed detritus in a Mediterranean lagoon (Lake Alimini Grande, Apulia, SE Italy). Marine Biology 8, 171-283.

McManus JW, Pauly D. 1990. Measuring ecological stress: variations on a theme by Warwick R. M. Mar Biol. 106(2), 305-308.

Meire PM, Dereu J. 1990. Use of the abundance/biomass comparison method for detecting environmental stress: some considerations based on intertidal macrozoobenthos and bird communities. Journal of Applied Ecology 27, 210-223.

Moisan J. 2010. Guide d’identification des principaux macroinvertébrés benthiques d’eau douce du Québec, 2010 – Surveillance volontaire des cours d’eau peu profonds, Direction du suivi de l’état de l’environnement, ministère du Development durable, de l’Environnement et des Parcs.

Nedeau EJ, Merritt RW, Kaufman MG. 2003. The effect of an industrial effluent on an urban stream benthic community : water quality vs habitat quality. Environmental Pollution 123, 1-13.

PADPPA (Programme d’Appui au développement Participatif de la Pêche Artisanale). 2008. Plan de gestion de plan d’eau (PGPE): Lac Toho. Version finale.

Rosenberg DM, Resh VH. 1993. Freshwater Biomonitoring and Benthic Macroinvertebrates. Chapman and Hall, New York.

Tachet H, Richoux P, Bourneau Mand Usseglio-Polatera P. 2006. Invertébrés d’eau douce, systématique, biologie, écologie. CNRS Editions, Paris.

Touzin D. 2008. Utilisation des macroinvertébrés benthiques pour évaluer la dégradation de la qualité de l’eau des rivières au Québec. Faculté des sciences de l’agriculture et de l’alimentation. Université Laval Canada. Thèsed’Ingénieur Agronome.

Warwick RM. 1986. A new method for detecting pollution effects on marine macro benthic communities. Marine Biology 92, 557-562.

Zinsou LH, Gnohossou P, Adandédjan D, Lalèyè P. 2016. Profil de distribution des macroinvertébrés benthiques du delta de l’Ouémé à partir du Self Organizing Map (SOM). Afrique SCIENCE 12(1), 224-236.

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