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 - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue African Journal of Microbiology Research Année : 2021

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

Résumé

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 (CO 2) and ammonium ions (NH 4 +). The visualization of corrgram shows high degree of association between studied parameters. We note a coefficient of determination r 2 = 0.50 for the multiple linear regression model for Heterotrophic Aerobic Bacteria (HAB) and a coefficient of determination r 2 = 0.58 for the MLR model for V. cholerae. The physicochemical parameters explain at 43% (r 2 = 0.43) the distribution of the abundances of V. parahaemolyticus, at 45% (r 2 = 0.45) the distribution of abundances of V. alginolyticus and at 26% (r 2 = 0.26) for V. fluvialis.
Fichier principal
Vignette du fichier
Tamsa Arfao et all. AJMR 2021.pdf (970.64 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03454657 , version 1 (29-11-2021)

Licence

Paternité

Identifiants

Citer

Antoine Tamsa Arfao, Mamert Fils Onana, Luciane Marlyse Moungang, Joel Brice Tchuimaleu Emadjeu, Blandine Pulchérie Tamatcho Kweyang, et al.. 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. African Journal of Microbiology Research, 2021, 15 (6), pp.304-317. ⟨10.5897/AJMR2021.9530⟩. ⟨hal-03454657⟩
91 Consultations
105 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More