Spatio-Temporal Variation in the Microbiological and Physicochemical Quality of the Oualidia Lagoon, Morocco

Yousra Moujahed; Abdelhamid El-Hissoufi; Houda Ennassiri; Siham Bazine; Samah Ait Benichou

doi:10.63095/NBSEH.25.098609

Authors

Yousra Moujahed 1- Health, Environment and Biotechnology Laboratory, Department of Biology, Faculty of Sciences Ain Chock, University Hassan II Casablanca (https://ror.org/001q4kn48), Casablanca 20650, Morocco 2-Microbiology Department, Charle Nicole Laboratory, Casablanca 20360, Morocco
Abdelhamid El-Hissoufi Health, Environment and Biotechnology Laboratory, Department of Biology, Faculty of Sciences Ain Chock, University Hassan II Casablanca (https://ror.org/001q4kn48), Casablanca 20650, Morocco
Houda Ennassiri Microbiology Department, Charle Nicole Laboratory, Casablanca 20360, Morocco
Siham Bazine Microbiology Department, Charle Nicole Laboratory, Casablanca 20360, Morocco
Samah Ait Benichou Health, Environment and Biotechnology Laboratory, Department of Biology, Faculty of Sciences Ain Chock, University Hassan II Casablanca (https://ror.org/001q4kn48), Casablanca 20650, Morocco

DOI:

https://doi.org/10.63095/NBSEH.25.098609

Keywords:

Oualidia Lagoon, Microbial contamination, Anthropogenic pollution

Abstract

The expansion of human activities around the Oualidia Lagoon exposes this biotope to negative environmental pressures. The aim of this study is to assess these impacts by monitoring the physico-chemicall and bacteriological quality of the Lagoon. Three water and mussel sampling campaigns were conducted between winter and spring 2023 and were used for microbiological (Escherichia coli, intestinal enterococci, Salmonella and Vibrion), physico-chemical (pH, temperature, salinity, electrical conductivity, nitrates, sulphates, chlorides, orthophosphates, chemical oxygen demand) and selected heavy metal (Fe, Cu, Cd, Pb, Cr) analyses. The results obtained show spatio-temporal variations in the different parameters analysed. The microbiological quality of the Lagoon water deteriorated in the summer season, with the bacterial load reaching a maximum of 120 CFU/100 mL for Escherichia coli. The physico-chemical analyses showed a marked increase in chemical oxygen demand, particularly in the summer months (2,320 mg L⁻¹) and the electrical conductivity and chloride reaching a maximum around 50,000 µS cm-1 and 28,400 mg L^-1 respectively.

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References

Hassou, N., Maanan, M., Hennani, M., Zourarah, B., & Assobhei, O., 2014, Spatial and temporal variation of faecal pollution indicators (Escherichia coli and faecal streptococci) and physico-chemical parameters at the Oualidia Lagoon and its watershed (Morocco). International Journal of Current Microbiology and Applied Sciences 3(3), 675-694. Available online at : https://www.ijcmas.com/vol-3-3/N.Hassou,%20et%20al.pdf (Consulted on 21 July 2024).

Chaouti, A., Azirar, A., & Bayed, A., 2019, Macrofaunal spatial distribution and community structure in a Lagoon without a river discharge (the Oualidia Lagoon, NW Morocco). Marine ecology 40(4), e12557. https://doi.org/10.1111/maec.12557

Hilmi, K., Koutitonsky, V. G., Orbi, A., Lakhdar, J. I., & Chagdali, M., 2005, Oualidia Lagoon, Morocco: an estuary without a river. African Journal of Aquatic Science 30(1), 1-10. https://doi.org/10.2989/16085910509503828

El Asri, F., Zidane, H., Maanan, M., Tamsouri, M., & Errhif, A., 2015, Taxonomic diversity and structure of the molluscan fauna in Oualidia Lagoon (Moroccan Atlantic coast). Environmental Monitoring and Assessment 187, 1-10. https://doi.org/10.1007/s10661-015-4752-7

Benrahma H., Bouhallaoui M., Elhaimeur B., &bBessi H., 2024, Ecotoxicological evaluation of Moroccan coastal Lagoons: insights from a multibiomarker approach. International Journal of Environmental Studies 82(1): 153–169. Available online at: https://doi.org/10.1080/00207233.2024.2409035

El Asri, F., Martin, D., Errhif, A., Tamsouri, M. N., Maanan, M., &bZidane, H., 2021, Community structure and spatial patterns of soft-bottom macrozoobenthos in Oualidia Lagoon, Moroccan Atlantic. Thalassas: An International Journal of Marine Sciences 37, 119-129. https://doi.org/10.1007/s41208-020-00263-3

Bouchkara, M., Mejjad, N., El Khalidi, K., Canu, D. M., & Zourarah, B., 2021, An Integrated Environmental Assessment of a coastal Lagoon: The Case of the Oualidia Lagoon (Morocco). In E3S Web of Conferences 298, 02003. https://doi.org/10.1051/e3sconf/202129802003

Orbi A., Makaoui A., Hilmi K., Idrissi M., Najih M., & Koutitonsky V.G., 2012, Hydrodynamics and renewal time of the Moroccan Oualidia Lagoon. African Journal of Marine Science 34(1), 113–120. Available online at: https://doi.org/10.2989/1814232X.2012.673292

Damsiri Z., Elkalay K., Khalil K., 2015, Modelling the biogeochemical cycle of the Oualidia Lagoon (Atlantic, Morocco). International Journal of Advanced Research 3(2), 18–30. Available online at: https://www.journalijar.com/article/3455/modelling-the-biogeochemical-cycle-of-the-oualidia-lagoon-%28atlantic%2C-morocco%29/

Chedad K., & Assobhei O., 2007, Étude de la survie des bactéries de contamination fécale (coliformes fécaux) dans les eaux de la zone ostréicole de la Lagune de Oualidia (Maroc). Bulletin de l’Institut Scientifique, Rabat, section Sciences de la vie 29, 71–79. Available online at: https://www.israbat.ac.ma/wp-content/uploads/2015/02/09-%20Chedad%20et%20al.%20%2871-79%29.pdf

Norme International ISO 9308-1:2014, Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method for waters with low bacterial background flora. https://standards.iteh.ai/catalog/standards/sist/649c6728-9364-42e9-b093- 7163d0abf5c0/iso-9308-1-2014

International Organization for Standardization, 2000, ISO 7899-2:2000. Qualité de l'eau : recherche et dénombrement des entérocoques intestinaux — Partie 2 : méthode par filtration sur membrane. Geneva: ISO. Available online at: https://www.iso.org/standard/14854.html

International Organization for Standardization, 2012, ISO 19250:2012. Water quality — Detection of Salmonella spp. Geneva: ISO. Available online at: https://www.iso.org/fr/standard/43448.html

International Organization for Standardization, 2024, ISO 7251/A1:2024. Microbiologie des aliments : méthode horizontale pour la recherche et le dénombrement d'Escherichia coli présumés — Technique du nombre le plus probable — Amendement 1 : inclusion des essais de performance des milieux de culture et réactifs. Geneva: ISO. Available online at: https://www.iso.org/standard/84912.html

International Organization for Standardization, 2020, ISO 6579-1/A1:2020. Microbiologie de la chaîne alimentaire : méthode horizontale pour la recherche, le dénombrement et le sérotypage des Salmonella — Partie 1 : recherche des Salmonella spp. Geneva: ISO. Available online at: https://www.iso.org/standard/76671.html

Rodier J., Bazin C., Broutin J.-P., Chambon P., Champsaur H., & Rodi L., 2009, L'analyse de l’eau: eaux naturelles, eaux résiduaires, eau de mer. 9ᵉ édition. (Paris: Dunod), pp. 320–325. Available online at: https://www.dunod.com/sciences-techniques/analyse-eau-eaux-naturelles-eaux-residuaires-eau-mer-9e-edition

Efstratiou, M. A., Mavridou, A., & Richardson, C., 2009, Prediction of Salmonella in seawater by total and faecal coliforms and Enterococci. Marine Pollution Bulletin 58(2), 201-205. https://doi.org/10.1016/j.marpolbul.2008.10.003

Jacobs Slifka K. M., Newton A. E., & Mahon B. E., 2017, Vibrio alginolyticus infections in the USA, 1988–2012. Epidemiology Infections 145: 1491–1499. Available online at: https://doi.org/10.1017/S0950268817000140

Liu Y., Hu J., Sun J. S., Li Y., Xue S. X., Chen Q. X., Li X. S., & Du G. X., 2014, Facile synthesis of multifunctional multi-walled carbon nanotube for pathogen Vibrio alginolyticus detection in fishery and environmental samples. Talanta 128, 311–318. https://doi.org/10.1016/j.talanta.2014.04.048

Ministère de l’Agriculture, de la Pêche Maritime, du Développement Rural et des Eaux et Forêts, Ministère de la Santé, 2019, Arrêté conjoint n° 293-19 du 9 Joumada II 1440 (15 février 2019) fixant la liste et les limites des critères microbiologiques autorisés dans les produits primaires et les produits alimentaires. Bulletin Officiel du Royaume du Maroc, n° 6796, p. 1686. Disponible en ligne à: https://www.onssa.gov.ma/images/reglementation/transversale/ARR.293-19.FR.pdf

Chaouite J., Moncef M., Laamyem N., & Sif J., 2018, Approche analytique des éléments chimiques et éléments traces métalliques dans les eaux et sédiments des salines et de la lagune de Oualidia (observation de la microflore siliceuse). SMETox Journal 1(1), 49–52. https://revues.imist.ma/index.php/SMETox_Journal/article/view/11776/6656

Damsiri, Z., Khalil, K., Rhomad, H., Derhy, G., Natij, L., Ait Ballagh, F., Hilmi, K., Ettahiri, O., Khbaya, B., Bougadir, B., & Elkalay, K., 2022, Nutrient Assessment in the waters of the Oualidia Lagoon, Moroccan Atlantic. Journal of Materials and Environmental Sciences 8(1), 67-77. https://doi.org/10.34874/IMIST.PRSM/fsejournal-v12i1.31286

Maanan, M., El Barjy, M., Hassou, N., Zidane, H., Zourarah, B., & Maanan, M., 2018, Origin and potential ecological risk assessment of trace elements in the watershed topsoil and coastal sediment of the Oualidia Lagoon, Morocco. Human and Ecological Risk Assessment: An International Journal 24(3), 602-614. https://doi.org/10.1080/10807039.2017.1394176

Anhichem, M., Dellal, M., Chfiri, r., Yahyaoui, A., & Benbrahim, S., 2017, Étude de la qualité des eaux et des sédiments de la baie de Dakhla au Maroc. Qualité physico-chimique et contamination métallique. Bulletin de la société zoologique de France 142(4), 329-340. Available online at: https://societe-zoologique.fr/sites/default/files/revue/2018-05/SZF142%284%29ANHICHEM4red.pdf (Accessed on 21 July 2024)

Hennani, M., Aajjane, A., & Assobhei, O., 2014, An evaluation of environmental factors affecting the survival of Escherichia coli in coastal area, Oualidia Lagoon. International Journal of Current Microbiology and Applied Sciences 3(10), 710-721. https://www.ijcmas.com/vol-3-10/HENNANI%20Mouna,%20et%20al.pdf

Hilmi, K., Makaoui, A., Ettahiri, O., Idrissi, M., Larissi, J., Abdellaoui, B., El Ouehabi Z., & Obri, A., 2017, Fonctionnement hydrodynamique de la Lagune de Oualidia (Maroc) Avant l’aménagement de la souille. International Journal of Advanced Research 5(7), 2015-2027. https://dx.doi.org/10.21474/IJAR01/4937

Bouchriti, N., El Marrakchi, A., & Fahim, A., 1992, The microbiological contamination of an oyster growing area in Morocco: The Oualidia Lagoon. Hydroécologie Appliquée 4, 189-202. https://doi.org/10.1051/hydro:1992215

Hennani, M., Hassou, N., Aajjane, A., & Assobhei, O., 2014, Adjusting a primary survival model of Enteric Bacteria" E. coli" in coastal environment: Oualidia Lagoon. International Journal of Current Microbiology and Applied Sciences 3(1), 127-139. Available online at : https://www.ijcmas.com/vol-3-1/M.Hennani,%20et%20al.pdf (accessed on 21 July 2024)