Hydrostatic pressure affects aggregate transformation and organic carbon transport: in and beyond the twilight zone: Experiment December 2010

This work aimed to explore evaluated the effects of the increased of hydrostatic pressure on a defined bacterial community on aggregates formed from an axenic culture of marine diatoms by simulating sedimentation to the deep sea by increase of hydrostatic pressure up to 30 bar (equivalent to 3000 m...

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Bibliographic Details
Main Authors: Mendes, Pedro André, Thomsen, Laurenz, Gust, Giselher, Moje, Annika
Format: Dataset
Language:English
Published: PANGAEA 2015
Subjects:
Alanine
Amino acid
total hydrolysable
Amino acids
Arginine
Aspartic acid
Aspartic acid/beta-Alanine ratio
beta-Alanine
BIOACID
Biological Impacts of Ocean Acidification
Carbon
inorganic
particulate
organic
total
Carbon/Nitrogen ratio
Dauwe index
Experimental treatment
gamma-Aminobutyric acid
Glutamic acid
Glutamic acid/gamma-Aminobutyric acid ratio
Glycine
Histidine
Isoleucine
Leucine
Lysine
Methionine
Nitrogen
Ornithine
Particle concentration
pH
Phenylalanine
Ratio
Serine
Sinking velocity
Size
Threonine
Time in hours
Tyrosine
Valine
Ocean acidification
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.846494
https://doi.org/10.1594/PANGAEA.846494
Description
Summary:This work aimed to explore evaluated the effects of the increased of hydrostatic pressure on a defined bacterial community on aggregates formed from an axenic culture of marine diatoms by simulating sedimentation to the deep sea by increase of hydrostatic pressure up to 30 bar (equivalent to 3000 m water depth) against control at ambient surface pressure. Our hypothesis was that microbial colonization and community composition and thus microbial OM turnover is greatly affected by changes in hydrostatic pressure during sinking to the deep ocean.

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