Dissolved organic matter, chlorophyll a and bacterial abundance measured in water samples of POLARSTERN cruise PS111 (ANT-XXXIII/2) ...

Global warming poses new threats to marine ecosystems since rising seawater temperature potentially induces cascading effects in biogeochemical cycles and food webs. Heterotrophic bacteria are the main producers of CO2 in the ocean, thereby counteracting the biological drawdown of CO2 by primary pro...

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Bibliographic Details
Main Authors: Piontek, Judith, Hassenrück, Christiane, Jürgens, Klaus, Engel, Anja
Format: Dataset
Language:English
Published: PANGAEA 2021
Subjects:
Ecology & Environment
Microbiology
FOS Biological sciences
Event label
Cruise/expedition
Station label
LATITUDE
LONGITUDE
DATE/TIME
Sample ID
Bottle number
DEPTH, water
Depth, bathymetric
Carbon, organic, dissolved
Carbohydrates, dissolved combined
Carbohydrates, dissolved combined, Carbon
Fucose
Rhamnose
Galactosamine
Arabinose
Glucosamine
Galactose
Glucose
Mannose/Xylose
Galacturonic acid
Glucuronic acid
Amino acids, dissolved
Amino acids, dissolved, Carbon
Aspartic acid
Glutamic acid
Serine
Threonine
Glycine
Arginine
Alanine
gamma-Aminobutyric acid
Tyrosine
Valine
Isoleucine
Phenylalanine
Leucine
Phosphate
Nitrate
Nitrite
Silicate, inorganic, dissolved
Bacteria
Chlorophyll a
CTD/Rosette
CTD
High-temperature catalytic oxidation method TOC-VCSH, Shimadzu Qian and Mopper, 1996
Antarc*
Antarctic
Weddell Sea
Online Access:https://dx.doi.org/10.1594/pangaea.938702
https://doi.pangaea.de/10.1594/PANGAEA.938702
Description
Summary:Global warming poses new threats to marine ecosystems since rising seawater temperature potentially induces cascading effects in biogeochemical cycles and food webs. Heterotrophic bacteria are the main producers of CO2 in the ocean, thereby counteracting the biological drawdown of CO2 by primary production. In Antarctic marine systems, low seawater temperature, and the low availability of labile organic matter are major environmental constraints on bacterial growth and degradation activity. However, temperature and the availability of resources for heterotrophic bacteria undergo considerable change induced by climate warming combined with subsequent ice melt and changes in primary productivity. This project aims to test single and combined effects of temperature and organic matter availability on Antarctic marine bacterioplankton. This data set includes biological and biogeochemical parameters measured alongside the CTD casts during the Polarstern cruise PS111 to the Weddell Sea. Samples were collected in ...

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