Uncoupled viral and bacterial distributions in coral reef waters of Tuamotu Archipelago (French Polynesia) - Université Pierre et Marie Curie Access content directly
Journal Articles Marine Pollution Bulletin Year : 2012

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

Abstract

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.
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Dates and versions

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

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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⟩
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