Back to Search
Start Over
Methane flux from sediment into near-bottom water and its variability along the Hel Peninsula—Southern Baltic Sea.
- Source :
-
Continental Shelf Research . Feb2014, Vol. 74, p88-93. 6p. - Publication Year :
- 2014
-
Abstract
- Abstract: Methane in the sediments of the Bay of Puck occurs in the form of free gas bubbles and is released from the sediments into near-bottom water in the form of a flux. The sediments of the Bay of Puck also contain methanogens whose biological activity results in the production of methane. Research carried out in the coastal areas of the bay along the Hel Peninsula proved the existence of a methane flux ranging from 0.81mmolm−2 d−1 to 33.41mmolm−2 d−1 in 2011, while in 2010 ranged from 0.91mmolm−2 d−1 to 49.15mmolm−2 d−1. Seasonal and annual fluctuations were also observed. Other factors contributing to the change in methane flux are water temperature and other environmental factors. An increase in temperature causes an increase in the flux. Fluctuations of the flux within individual sampling sites were also observed. A test performed with specific methanogenic inhibitor—sodium dodecyl sulfate (SDS) unexpectedly revealed higher methane concentrations (10–13%) in samples to which SDS was added. We speculate that these higher methane concentration result from the lysis of methane-forming bacteria cells when exposed to SDS. [Copyright &y& Elsevier]
- Subjects :
- *METHANE
*SEDIMENTS
*BACTERIAL cells
*METHANOBACTERIACEAE
*OCEAN bottom
*BUBBLES
Subjects
Details
- Language :
- English
- ISSN :
- 02784343
- Volume :
- 74
- Database :
- Academic Search Index
- Journal :
- Continental Shelf Research
- Publication Type :
- Academic Journal
- Accession number :
- 94156376
- Full Text :
- https://doi.org/10.1016/j.csr.2013.12.006