Moving to Stockholm
01/09/2024
I traded in the warm, dry weather of French Catalonia for the vibrant city of Stockholm and started a new position at the Department of Environmental Science at Stockholm University in Sweden to focus on the impacts of ocean acidification on the biogeochemical and microbial dynamics in the Eurasian Arctic Ocean under principal investigator Dr. Birgit Wild.
Back to the Arctic without actually going to the Arctic...
New paper in Organic Geochemistry
15/07/2024
I am the first-author of a new paper in the journal Organic Geochemistry, which investigated the links between DOM and microbes at the Microbial Observatory Laboratory Arago (MOLA) time series station in the NW Mediterranean Sea.
Read the open-access paper here:
von Jackowski A, Bouchachi B, Barral Q-B, Labatut P, Marie B, Crispi O, Escoubeyrou K, Paulin C-H, Dimier C, Ras J, Hayward A, Ortega-Retuerta E (2024) Seasonality of amino acid enantiomers and microbial communities at MOLA time series in the NW Mediterranean Sea. Organic Geochemistry doi: 10.1016/j.orggeochem.2024.104839
2024
Great Research Conference
8-14/06/2024
Great science, great people, great all around!!! I spent the week at the Marine Microbes Gordon Research Seminar (GRS) and Gordon Research Conference (GRC), which was probably the best week I have had this year. In addition to presenting my science and learning more about genes, rates, and biogeochemistry in the field, I was voted to co-organize the next GRS with Dr. Taylor Priest in Barcelona from 6-7 June 2026. My goal will be to acquire funding for several ECOPs that work in marine microbiology in the Global South, so if you are the CEO of a large company willing to support this cause please send me a message!
New paper in Environmental Microbiology
24/01/2024
I am a co-author of a new paper in the journal Environmental Microbiology, which investigated the links between DOM and microbes. Lots and lots of sleepless nights taking the samples but it turned into such an amazing publication!
Read the open-access paper here:
Wietz M, Engel A, Ramondenc S, Niwano M, von Appen W-J, Priest T, von Jackowski A, Metfies K, Bienhold C, Boetius A. (2024) The Arctic summer microbiome across Fram Strait: Depth, longitude, and substrate concentrations structure microbial diversity in the euphotic zone. Environmental Microbiology. doi: 10.1111/1462-2920.16568
New paper in Environmental Science & Technology
06/05/2024
I am a co-author of a new paper in the journal Environmental Science & Technology, which investigated the links between DOM and sea-spray aerosol production in Eastern Arctic Waters.
Read the open-access paper here:
Rocchi A, von Jackowski A, Welti A, Li G, Kanji Z A, Povazhnyy V, Engel A, Schmale J, Nenes A, Berdalet E, Simó R, Dall′ Osto M (2024) Glucose Enhances Salinity-Driven Sea Spray Aerosol Production in Eastern Arctic Waters. Environmental Science & Technology doi: 10.1021/acs.est.4c02826
Ready, Set, Action
8-13/04/2024
Ocean Decade let's get started! Climate change is becoming our reality, but instead of more scientists, we need everyone else to get involved. The Ocean Decade Conference 2024 was the delayed start to the United Nations Decade of Ocean Science for Sustainable Development, a 10-year framework from 2021 to 2030. I was humbled to represent ECOPs from Germany, Austria, and Switzerland and slightly nervous but committed to asking questions to enhance engagement of early careers in all fields "Can you give specific examples of how ECOPs in your program?". We need everyone and if you want to get involved please engage with us on our LinkedIn or via germany@ecopdecade.org
2023
New paper in Frontiers in Marine Science
31/10/2023
Happy Halloween and what a fun date for this beautiful dataset is finally out for everyone to read! I am the first author of a new paper in the journal Frontiers in Marine Science, which investigated the pelagic and benthic microbial communities near the Langseth Ridge in the central Arctic Ocean. The results showed a shift in the pelagic microbial community in the 0-10 m to the epipelagic waters and notable differences in richness between ~600 m and the near bottom waters that suggest a pelagic-benthic coupling mediated by filter feeding of sponges living on the seamount summits. In the sediment, sponge spicules contributed to variations between the samples but the porewater signature suggested that low organic matter degradation rates are accompanied by a microbial community typical of deep-sea oligotrophic environments.
Read the open-access paper here:
von Jackowski A, Walter M, Spiegel T, Buttigieg PL, Molari M. 2023 Drivers of pelagic and benthic microbial communities on central Arctic seamounts Front. Mar. Sci. doi: 10.3389/fmars.2023.1216442
Oral Presentation at Symposium on Aquatic Microbial Ecology, Tartu
20/08/2023
Want to know what I am currently working on? I will present my latest results on the seasonal biogeochemical and microbial cycles from the MOLA time series in the session "Hoops and Loops of the Nitrogen and Phosphorus Cycle".
All aboard the Pourqoui Pas?
05/06/2023-16/07/2023
Follow me and my fellow scientists of the APERO expedition on the French research vessel Pourquoi Pas?. On board, I will perform various experiments to investigate heterotrophic recycling of dissolved organic matter in the deep sea.
For updates see the official website of the APERO expedition
New paper in Genes
25/02/2023
I am a co-author of a new paper in the journal Genes, which investigated the effect of temperature on phytoplankton and bacterial communities in the Fram Strait. The chosen temperatures of 2 °C, 6 °C, and 9°C mimic the current and potential future properties of the Arctic Ocean. Our results contradict the common assumption that smaller organisms and heterotrophs are favored under warming and strongly indicate a thermal limit between 6 °C and 9 °C for many Arctic species.
Read the open-access paper here:
Ahme A, von Jackowski A, McPherson R, Wolf K, Hoppmann M, Neuhaus S, John U. 2023 Winners and losers of Atlantification: the degree of ocean warming affects the structure of Arctic microbial communities. MDPI Genes.
doi: 10.3390/genes14030623
Starting new post-doc at LOMIC, France
09/01/2023
Im starting a new position at the Laboratoire d'Océanographie Microbienne (LOMIC) de l'Observatoire Océanologique de Banyuls-sur-Mer (OOB) in France to focus on the biogeochemical and microbial dynamics in the northwestern Mediterranean Sea under principal investigator Dr. Eva Ortega-Retuerta.
2022
Thank you Prof. Dr. Werner Petersen Foundation
21/12/2022
WOW! I was among the early career scientists recognized for her excellent PhD thesis and awarded the Young Talent Award by the Prof. Dr. Werner Petersen Foundation. The Prof. Dr. Werner Petersen Foundation awards scholarships, knowledge transfer prizes, and young talent prizes to doctoral theses. The GEOMAR Helmholtz Centre for Ocean Research Kiel published a press release about the ceremony. Thank you for recognizing our work!
Teaching as part of the Rent-a-Scientist Initiative
09/2022
Had a fantastic time teaching an 8th and 12th grade class to showcase my science and some hands-on practical work by looking at phytoplankton cultures under the light-microscope.
Hunting eddies in the Atlantic Ocean
30/05-11/07/2022
Another year, another expedition! But this year to the sunny waters near Cape Verde. I will be filtering for organic matter but also doing some outreach via Instagram @oceanstories.ebus and blogging on Oceanstories.EBUS BLOG. Check it out to get a glimpse into life onboard the research vessel Meteor!
New paper in Environmental Microbiology
03/05/2022
Im a the first author of a new paper in the journal Environmental Microbiology, which investigated the seasonal variability of biopolymers, microbial abundance, and microbial composition within the upper 100 m in the Fram Strait. Our results revealed a shift in the autotrophic community from picoeukaryotes dominating in summer to a 34-fold increase of Synechococcus by fall. Furthermore, a significant decline in biopolymer concentrations covaried with increasing microbial diversity based on 16S rRNA gene sequencing along with a community shift towards fewer polymer-degrading genera in the fall.
Read the open-access paper here:
von Jackowski A, Becker KW, Wietz M, Bienhold C, Zäncker B, Nöthig E-M, Engel A. 2022 Variations of microbial communities and substrate regimes in the eastern Fram Strait between summer and fall. Environmental Microbiology. doi: 10.1111/1462-2920.16036