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Ice formation and growth shape bacterial community structure in Baltic Sea drift ice
- Source :
- FEMS microbiology ecology. 91(2)
- Publication Year :
- 2015
-
Abstract
- Drift ice, open water and under-ice water bacterial communities covering several developmental stages from open water to thick ice were studied in the northern Baltic Sea. The bacterial communities were assessed with 16S rRNA gene terminal-restriction fragment length polymorphism and cloning, together with bacterial abundance and production measurements. In the early stages, open water and pancake ice were dominated by Alphaproteobacteria and Actinobacteria, which are common bacterial groups in Baltic Sea wintertime surface waters. The pancake ice bacterial communities were similar to the open-water communities, suggesting that the parent water determines the sea-ice bacterial community in the early stages of sea-ice formation. In consolidated young and thick ice, the bacterial communities were significantly different from water bacterial communities as well as from each other, indicating community development in Baltic Sea drift ice along with ice-type changes. The thick ice was dominated by typical sea-ice genera from classes Flavobacteria and Gammaproteobacteria, similar to those in polar sea-ice bacterial communities. Since the thick ice bacterial community was remarkably different from that of the parent seawater, results indicate that thick ice bacterial communities were recruited from the rarer members of the seawater bacterial community.
- Subjects :
- hapetus
pmoA gene
pmoA transcription
metaani
Applied Microbiology and Biotechnology
Microbiology
bakteerit
Actinobacteria
kosteikot
methanotrophs
RNA, Ribosomal, 16S
Gammaproteobacteria
rannikot
Sea ice
vaihtelu
Ice Cover
Seawater
lajit
14. Life underwater
Biomass
Alphaproteobacteria
Drift ice
vuodenajat
seasonal variation
geography
littoral wetland
geography.geographical_feature_category
Ecology
biology
methane oxidation
ta1183
Community structure
eliöyhteisöt
biology.organism_classification
Itämeri
Pancake ice
ta1181
North Sea
human activities
Flavobacteriaceae
Polymorphism, Restriction Fragment Length
Subjects
Details
- ISSN :
- 15746941
- Volume :
- 91
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- FEMS microbiology ecology
- Accession number :
- edsair.doi.dedup.....1f15f875916f71043229cb8f61641e3d