Bacterial biomass production 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
Format: Dataset
Language:English
Published: PANGAEA 2021
Subjects:
Ecology & Environment
Microbiology
FOS Biological sciences
Event label
Sample ID
DEPTH, water
Incubation temperature
Bacterial production
CTD/Rosette
Incorporation of 14C-leucine Simon and Azam, 1989, http//www.int-res.com/articles/meps/51/m051p201.pdf; Simon et al. 2004, doi10.4319/lo.2004.49.4.1035
Estimated
PS111
Polarstern
Kombinierte Effekte von Temperatur und Ressourcenverfügbarkeit auf den Abbau von organischem Material durch Antarktisches Bakterioplankton CombiBac
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158
Antarc*
Antarctic
Antarktis*
Global warming
Sea ice
Weddell Sea
Online Access:https://dx.doi.org/10.1594/pangaea.938700
https://doi.pangaea.de/10.1594/PANGAEA.938700
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 measurements on bacterial biomass production at 0°C and 3°C measured alongside the CTD casts during the Polarstern cruise PS111 to the Weddell Sea. Samples ...

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