African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5123

Full Length Research Paper

Distribution patterns of Vibrionaceae abundance on the landing stages in coastal area: Understanding the influence of physicochemical variables by using multiple linear regression models and corrgram for matrix correlation

Antoine Tamsa Arfao
  • Antoine Tamsa Arfao
  • Hydrobiology and Environment Laboratory, Faculty of Sciences, University of Yaounde 1, P. O. Box 812 Yaounde, Cameroon.
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Mamert Fils Onana
  • Mamert Fils Onana
  • Department of Aquatic Ecosystems Management, Institute of Fisheries and Aquatic Sciences, University of Douala, Douala, Cameroon.
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Luciane Marlyse Moungang
  • Luciane Marlyse Moungang
  • Hydrobiology and Environment Laboratory, Faculty of Sciences, University of Yaounde 1, P. O. Box 812 Yaounde, Cameroon.
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Joel Brice Tchuimaleu Emadjeu
  • Joel Brice Tchuimaleu Emadjeu
  • Hydrobiology and Environment Laboratory, Faculty of Sciences, University of Yaounde 1, P. O. Box 812 Yaounde, Cameroon.
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Blandine Pulchérie Tamatcho Kweyang
  • Blandine Pulchérie Tamatcho Kweyang
  • Microbiology Laboratory, University of Yaounde 1, Faculty of Sciences, P. O. Box 812 Yaounde, Cameroon.
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Olive Vivien Noah Ewoti
  • Olive Vivien Noah Ewoti
  • Hydrobiology and Environment Laboratory, Faculty of Sciences, University of Yaounde 1, P. O. Box 812 Yaounde, Cameroon.
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Siméon Tchakonté
  • Siméon Tchakonté
  • Hydrobiology and Environment Laboratory, Faculty of Sciences, University of Yaounde 1, P. O. Box 812 Yaounde, Cameroon.
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Belengfe Sylvie Chinche
  • Belengfe Sylvie Chinche
  • Department of Fisheries and Aquatic Resources Management, University of Buea, P. O. Box 63, Buea, Cameroon.
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Télesphore Sime-Ngando
  • Télesphore Sime-Ngando
  • Laboratoire Microorganismes Génome et Environnement (LMGE), Université Clermont Auvergne, Aubière Cedex, France.
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Nola Moise
  • Nola Moise
  • Hydrobiology and Environment Laboratory, Faculty of Sciences, University of Yaounde 1, P. O. Box 812 Yaounde, Cameroon.
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  •  Received: 16 March 2021
  •  Accepted: 13 May 2021
  •  Published: 30 June 2021

Abstract

The present work used multiple linear regression (MLR) models and corrgram to assess the importance of environmental parameters on diversity and abundance dynamics of Vibrio sp. in waters of few landing stages in the city of Douala (Cameroon). It was recorded in all the five selected stations, the presence of four species of Vibrio namely, Vibrio parahaemolyticus, Vibrio cholerae, Vibrio fluvialis and Vibrio alginolyticus whose highest abundance reached 5.65, 6.26, 4.9 and 4.83 log CFU/100 ml respectively. Vibrio cholerae was the most isolated during the study with a frequency of 65%. The abundance dynamics of these germs is strongly influenced by nitrates, salinity, dissolved carbon dioxyde (CO2) and ammonium ions (NH4+). The visualization of corrgram shows high degree of association between studied parameters. We note a coefficient of determination r2 = 0.50 for the multiple linear regression model for Heterotrophic Aerobic Bacteria (HAB) and a coefficient of determination r2 = 0.58 for the MLR model for V. cholerae. The physicochemical parameters explain at 43% (r2 = 0.43) the distribution of the abundances of V. parahaemolyticus, at 45% (r2 = 0.45) the distribution of abundances of V. alginolyticus and at 26% (r2 = 0.26) for V. fluvialis.

 

Keywords: Multiple linear regression, visualization of corrgram, environmental parameters, distribution patterns, Vibrionaceae.