Biogeosciences
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Articles | Volume 23, issue 13
Articles | Volume 23, issue 13
https://doi.org/10.5194/bg-23-4485-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4485-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 13
Research article
 | 
06 Jul 2026
Research article |  | 06 Jul 2026

Archaeal community composition in Holocene methane pockmarks of the Gdańsk Basin (Baltic Sea, Poland): insights from tetraether lipids and 16S rRNA analysis

Izabela De Mey-Śnieżyńska, Mirosław Słowakiewicz, Francien Peterse, Aleksandra Brodecka-Goluch, Andrzej Borkowski, and Katarzyna Łukawska-Matuszewska

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Short summary
This study examined seafloor gas- and/or water-venting craters (pockmarks) to understand the drivers of the microorganisms inhabiting these environments. By combining lipid biomarkers extracted from seabed sediments with genetic analyses, the study found that the microbial community is shaped mainly by nitrogen availability, methane seepage, and porewater freshening. Pockmarks may therefore modulate coastal nutrient cycling and greenhouse gas dynamics, a finding relevant to ecosystem monitoring.
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