Virioplankton dynamics are related to eutrophication levels in a tropical urbanized bay.

ABSTRACT: Virioplankton are an important and abundant biological component of marine and freshwater ecosystems. Often overlooked, aquatic viruses play an important role in biogeochemical cycles on a global scale, infecting both autotrophic and heterotrophic microbes. Viral diversity, abundance, and viral interactions at different trophic levels in aqueous environments are not well understood. Tropical ecosystems are less frequently studied than temperate ecosystems, but could provide new insights into how physical and chemical variability can shape or force microbial community changes. In this study, we found high viral abundance values in Guanabara Bay relative to other estuaries around the world. Viral abundance was positively correlated with bacterioplankton abundance and chlorophyll a concentrat

SUBMITTER: Cabral AS 

PROVIDER: S-EPMC5376344 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature