Population dynamics of bacterioplanktonic component associated with the phytoplankton biomass in Kongsfjorden, an Arctic fjord

Temporal variation (June and October 2012) in bacterial and phytoplankton communities of Kongsfjorden was studied using 16S rRNA gene clone libraries and marker pigments respectively. Proteobacteria was the dominant phyla in Kongsfjorden with Gammaproteobacteria (42%) and Alphaproteobacteria (84%) d...

Full description

Saved in:
Bibliographic Details
Published inCurrent science (Bangalore) Vol. 115; no. 9; pp. 1690 - 1694
Main Authors Sinha, Rupesh Kumar, Krishnan, K. P., Kerkar, Savita
Format Journal Article
LanguageEnglish
Published Current Science Association 10.11.2018
Subjects
SPECIAL SECTION: ASIAN FORUM FOR POLAR SCIENCES
Online AccessGet full text

Cover

More Information
Summary:Temporal variation (June and October 2012) in bacterial and phytoplankton communities of Kongsfjorden was studied using 16S rRNA gene clone libraries and marker pigments respectively. Proteobacteria was the dominant phyla in Kongsfjorden with Gammaproteobacteria (42%) and Alphaproteobacteria (84%) dominating in June and October, respectively. Retrieval of sequences affiliated to Verrucomicrobia, Gammaproteobacteria and Bacteroidetes in June corresponded with high autotrophic biomass (Chl a, 33 ng l−1) whereas abundance of SAR 11 coincided with decrease in the intensity of autotrophic biomass (Chl a, 24 ng l−1) in October. Thus, the distribution of bacterioplankton community varied with change in phytoplankton composition indicating a significant coupling between these two groups in the fjord water.
ISSN:0011-3891
DOI:10.18520/cs/v115/i9/1690-1694