NDLI: Succession of sea-ice bacterial communities in the Baltic Sea fast ice

Content Provider	Springer Nature Link
Author	Kaartokallio, Hermanni Tuomainen, Jaana Kuosa, Harri Kuparinen, Jorma Martikainen, Pertti J. Servomaa, Kristina
Copyright Year	2008
Abstract	Coastal fast ice and underlying water of the northern Baltic Sea were sampled throughout the entire ice winter from January to late March in 2002 to study the succession of bacterial biomass, secondary production and community structure. Temperature gradient gel electrophoresis (TGGE) and sequencing of TGGE fragments were applied in the community structure analysis. Chlorophyll-a and composition of autotrophic and heterotrophic assemblages were also examined. Overall succession of ice organism assemblages consisted of a low-productive stage, the main algal bloom, and a heterotrophic post-bloom situation, as typical for the study area. The most important groups of organisms in ice in terms of biomass were dinoflagellates, plasticidic flagellates, rotifers and ciliates. Ice bacteria showed a specific succession not directly dependent on the overall succession events of ice organisms. Sequenced 16S rDNA fragments were mainly affiliated to α-, β-, and γ-proteobacterial phyla and Cytophaga–Flavobacterium–Bacteroides-group, and related to sequences from cold environments, also from the Baltic Sea. Temporal clustering of the TGGE fingerprints was stronger than spatial, although lower ice and underlying water communities always clustered together, pointing to the importance of ice maturity and ice–water interactions in shaping the bacterial communities.
Starting Page	783
Ending Page	793
Page Count	11
File Format	PDF
ISSN	07224060
Journal	Polar Biology
Volume Number	31
Issue Number	7
e-ISSN	14322056
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-02-02
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sea ice Bacteria Algae Baltic Sea 16S rDNA TGGE Phylogeny Zoology Plant Sciences Microbiology Oceanography Ecology
Content Type	Text
Resource Type	Article
Subject	Agricultural and Biological Sciences

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