Uncoupled viral and bacterial distributions in coral reef waters of Tuamotu Archipelago (French Polynesia) - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue Marine Pollution Bulletin Année : 2012

Uncoupled viral and bacterial distributions in coral reef waters of Tuamotu Archipelago (French Polynesia)

Résumé

This study examined the distribution of virioplankton and bacterioplankton in two coral reef systems (Ahe and Takaroa atolls) in the Tuamotu Archipelago, in comparison with the surrounding oligotrophic ocean. Mean concentrations of 4.8 x 10^5 and 6.2 x 10^5 cells ml-1 for bacteria and 8.1 x 10^6 and 4.3 x 10^6 VLP (virus-like particle) ml-1 were recorded in Ahe and Takaroa lagoons, respectively. Chlorophyll a concentrations and dissolved organic matter were higher in Ahe whereas 3H thymidine incorporation rates were higher in Takaroa. First data on lytic and lysogenic strategies of phages in coral reef environments were discussed in this paper. The fraction of visibly infected cells by viruses was negligible regardless of the lagoon station (mean = 0.15%). However, the fraction of lysogenic cells ranged between 2.5% and 88.9%. Our results suggest that the distribution patterns of virioplankton are apparently not coupled to the spatial dynamics of the bacterioplankton communities.
Fichier principal
Vignette du fichier
Bouvy et al 2012b.pdf (416.23 Ko) Télécharger le fichier
Origine : Accord explicite pour ce dépôt

Dates et versions

hal-01420111 , version 1 (26-12-2016)

Identifiants

Citer

Marc Bouvy, Marine Combe, Yvan Bettarel, Christine Dupuy, Emma Rochelle-Newall, et al.. Uncoupled viral and bacterial distributions in coral reef waters of Tuamotu Archipelago (French Polynesia). Marine Pollution Bulletin, 2012, Ahe Atoll and Pearl Oyster Aquaculture in the Tuamotu Archipelago, 65 (10-12), pp.506-515. ⟨10.1016/j.marpolbul.2012.01.001⟩. ⟨hal-01420111⟩
411 Consultations
318 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More