Publications des scientifiques de l'IRD

Sauret C., Tedetti Marc, Guigue C., Dumas C., Lami R., Pujo-Pay M., Conan P., Goutx M., Ghiglione J. F. (2016). Influence of PAHs among other coastal environmental variables on total and PAH-degrading bacterial communities. Environmental Science and Pollution Research, 23 (5), p. 4242-4256. ISSN 0944-1344.

Titre du document
Influence of PAHs among other coastal environmental variables on total and PAH-degrading bacterial communities
Année de publication
2016
Type de document
Article référencé dans le Web of Science WOS:000371156100025
Auteurs
Sauret C., Tedetti Marc, Guigue C., Dumas C., Lami R., Pujo-Pay M., Conan P., Goutx M., Ghiglione J. F.
Source
Environmental Science and Pollution Research, 2016, 23 (5), p. 4242-4256 ISSN 0944-1344
We evaluated the relative impact of anthropogenic polycyclic aromatic hydrocarbons (PAHs) among biogeochemical variables on total, metabolically active, and PAH bacterial communities in summer and winter in surface microlayer (SML) and subsurface seawaters (SSW) across short transects along the NW Mediterranean coast from three harbors, one wastewater effluent, and one nearshore observatory reference site. At both seasons, significant correlations were found between dissolved total PAH concentrations and PAH-degrading bacteria that formed a gradient from the shore to nearshore waters. Accumulation of PAH degraders was particularly high in the SML, where PAHs accumulated. Harbors and wastewater outfalls influenced drastically and in a different way the total and active bacterial community structure, but they only impacted the communities from the nearshore zone (<2 km from the shore). By using direct multivariate statistical analysis, we confirmed the significant effect of PAH concentrations on the spatial and temporal dynamic of total and active communities in this area, but this effect was putted in perspective by the importance of other biogeochemical variables.
Plan de classement
Ecologie, systèmes aquatiques [036] ; Pollution [038]
Description Géographique
FRANCE ; MEDITERRANEE
Localisation
Fonds IRD [F B010066252]
Identifiant IRD
fdi:010066252
Contact