Helgoland Transects

Bight. At each transect station salinity, temperature, nutrients and chlorophyll are measured. Phytoplankton data for some stations and years are also available. These provide important contextual information

Publications

" within series „Weltwunderkugel: Klimaforschung mit Markus Rex“ (Astrid Bracher interview on phytoplankton from space at the phone with Christiane von Wolf 18 Jan 2021 around minute 10:00: https ://www [...] s-arktis-framstrasse-1.5105845 Bracher et al. FMARS (2020) on Atlantic Polarstern expedition phytoplankton group data as highlight within "New Publications" section at IOCCG May 2020: Newsletter: ioccg [...] de/deu/institut/bild-des-monats/ Press release to international summer school " Observation of phytoplankton diversity: innovative methods and industrial applications " July 2019; www.awi.de/en/

Research

y) affect not only the timing, but also the physiology and biochemistry in sea ice algae and phytoplankton. This has implications for the efficiency of trophic transfer, as well as for the use of trophic [...] developing biochemical pathways which enable them to accumulate large lipid stores during summer phytoplankton blooms. The importance of lipids is connected to their capability to store energy in a very efficient [...] closely related to biological and hydrographical studies. These basic data are important to study phytoplankton blooms and to characterize water masses due to different nutrient concentrations in the oceans

DanieleDiBella_Thesis_1-1_SynergyTROPOMI-PhytoDOAS_OLCI-OCPFT.pdf

developers of OC-PFT were not only interested in phytoplankton functional types, but also in phytoplankton size classes, PSCs, which are used to classify phytoplankton based on their size. PSCs are not in the [...] ................ 4 1.1 Phytoplankton: a brief foreword .................................................................................. 4 1.2 Ecological roles of phytoplankton ...................... [...] bacteria, mixoplankton, phytoplankton and protozooplankton, in turn releasing particulate and dissolved organic matter. (Glibert and Mitra, 2022) This thesis work focuses on phytoplankton, the study of which

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Projects

Ecology The ICES Working Group on Phytoplankton and Microbial Ecology (WGPME) provides reviews and advice on the sampling methods and diversity issues of phytoplankton and other planktonic microbes. Our

Analytical Techniques

parameters simultaneously. We use a Miltenyi MACSQuant® Analyzer 10 to determine the cell density of phytoplankton and bacteria cultures as well as to measure cellular properties such as lipid and protein content [...] analysis of carbon and nitrogen from solid sample material. (CN) Carbon and nitrogen content of phytoplankton and zooplankton are obtained with a CHNS-analyzer. Samples go through a high-temperature combustion [...] feeding and moving with a high-speed high-quality PHANTOM Lab110 camera. Cell physiology To study phytoplankton physiology, we use an Oroboros that provides O2k technology for high-resolution respirometry in

peer-review

B., Bracher A., Xi H. , Costa M. (2024) Bioregionalization of the subarctic Pacific based on phytoplankton phenology and composition. Progress in Oceanography 228: 1003315, doi.org/10.1016/j.pocean [...] Peeken I., Alvarado L.M.A. , Mangin A., Bracher A. : Two-decade satellite monitoring of surface phytoplankton functional types in the Atlantic Ocean, State of the Planet 1-osr7, 5, doi.org/10.519 [...] Xi H. , Belluz J.D.B., Hussain M.S., Bracher A., Costa M. (2022) Seasonal dynamics of major phytoplankton functional types in the coastal waters of the west coast of Canada derived from OLCI Sentinel

Arctic Survivalists

even when the water becomes more acidic and the available light or temperatures change, various phytoplankton assemblages in the Arctic demonstrate undiminished productivity and biodiversity. This was the

Arctic plankton ecology and related sedimentary flux

ciliate ( Acanthostomella norvegica ) Phytoplankton biomass The determination of chlorophyll a in the water column represents a measure for the biomass of phytoplankton. Here, the biomass, integrated into

The Polarstern Expedition PS93.2

between the HGF-MPG Joint Research Group on Deep-Sea Ecology and Technology, and the PEBCAO Group (Phytoplankton Ecology and Biogeochemistry in the Changing Arctic Ocean) at AWI and the Helmholtz Young Investigators