Low virus to prokaryote ratios in the cold: benthic viruses and prokaryotes in a subpolar marine ecosystem (Hornsund, Svalbard)
Int. microbiol
; 16(1): 45-52, mar. 2013. ilus, tab
Artigo
em Inglês
| IBECS
| ID: ibc-114744
Biblioteca responsável:
ES1.1
Localização: BNCS
ABSTRACT
The density and spatial distribution of benthic viruses and prokaryotes in relation to biotic and abiotic factors were investigated in sediment cores collected in Hornsund, a permanently cold fjord on the West coast of Svalbard, Norway. The cores were obtained from the mouth of the fjord to the central basin, along a longitudinal transect. The results of our analyses showed lower densities of viruses (0.2 x 10(8) to 5.4 x 10(8) virus-like particles/g) and lower virus-to-prokaryote ratios (0.2-0.6, with the exception of the uppermost layer in the central basin, where the ratio was about 1.2) at the study site than generally found in the temperate areas, despite the relatively high organic matter content in subpolar sediments. Variations in benthic viral and prokaryote abundances along gradients of particle sedimentation rates, phytopigment concentrations, and macrobenthic species composition together suggested the influence of particle sedimentation and macrobenthic bioturbation on the abundance and spatial distribution ofprokaryotes and viruses in cold habitats (AU)
RESUMEN
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Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Células Procarióticas
/
Vírus
/
Fauna Bentônica
/
Ambiente Marinho
País/Região como assunto:
Europa
Idioma:
Inglês
Revista:
Int. microbiol
Ano de publicação:
2013
Tipo de documento:
Artigo
Instituição/País de afiliação:
Polish Academy of Sciences/Poland
/
University of Copenhagen/Denmark
/
University of Zurich/Switzerland