Markus Diesing
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mdiesing.bsky.social
Markus Diesing
@mdiesing.bsky.social
110 followers 160 following 37 posts
Leveraging machine learning to map seabed sediments and their properties. Views are my own.

Based at the Geological Survey of Norway: https://www.ngu.no/en

Google Scholar: https://scholar.google.co.uk/citations?user=4CjgdJAAAAAJ&hl=en
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mdiesing.bsky.social
Markus Diesing @mdiesing.bsky.social · Nov 21
Not as glamorous as #BlueCarbon ecosystems, the humble #sediments on the #seafloor off Norway accumulate and store a lot of organic #carbon.

Link to the paper: t.co/ZFXkokTmR5

We are now assessing the potential impacts of mobile bottom fishing on vulnerable organic carbon stocks.
Organic carbon accumulation rates of the geomorphological units shallow shelf, deep shelf, glacial trough, slope and abyss. The left figure shows mean organic carbon accumulation rates averaged over the five morphological units. Vertical lines indicate one standard deviation. The rates are highest in glacial troughs. The right figure shows the organic carbon sink sizes. About half the accumulation of organic carbon is occuring in glacial troughs. The total accumulation of organic carbon is 6 teragram per year. Organic carbon stocks in surface sediments of the geomorphological units shallow shelf, deep shelf, glacial trough, slope and abyss. The left figure shows mean organic carbon stocks averaged over the five morphological units. Vertical lines indicate one standard deviation. The right figure shows organic carbon reservoir sizes of the five geomorphological units. Reservoir sizes are highest in glacial troughs. In total, the surface sediments of the Norwegian continental margin store 814 teragram of organic carbon.
mdiesing.bsky.social
🌊Paper alert!
doi.org/10.5194/bg-2...
with @marijasciberras.bsky.social et al.

We map organic carbon vulnerable to mobile bottom fishing in currently unfished areas of the Norwegian continental margin.

Why in unfished areas you might ask? Let me explain.
[thread]
Mapping organic carbon vulnerable to mobile bottom fishing in currently unfished areas of the Norwegian continental margin
Abstract. Organic carbon stored in continental margin sediments might be at risk by widespread mobile bottom fishing, potentially leading to reductions of organic carbon stocks, increased ocean acidif...
doi.org
December 4, 2025 at 10:22 AM
mdiesing.bsky.social
🌊 New publication out!
Key message: Measuring dry bulk density is as important as measuring organic carbon content when estimating organic carbon stocks.
Shouldn't surprise, but needs to be said.
Led by Mark Chatting (@ucddublin.bsky.social), with @drmarkyc.bsky.social, @biogeochembilly.bsky.social
November 4, 2025 at 7:43 AM
mdiesing.bsky.social
🌊Selv om vi for øyeblikket mangler enighet om omfanget av remineralisering av organisk karbon pga. bunntråling, er det et presserende behov for å håndtere den pågående klimakrisen.
Her kartlegger vi hotspots for organisk karbon i Norge som kan brukes i marin arealplanlegging.
doi.org/10.1088/2515...
Hotspots and coldspots of seabed organic carbon on the Norwegian continental margin - IOPscience
Hotspots and coldspots of seabed organic carbon on the Norwegian continental margin, Diesing, Markus, Smeaton, Craig, Bjarnadóttir, Lilja Rún, Thorsnes, Terje
doi.org
October 31, 2025 at 11:44 AM
mdiesing.bsky.social
🌊 New PhD opportunity!
Protection of Seabed Carbon in Shelf Sediment

Supervised by @marijasciberras.bsky.social and @coastalcarbon.bsky.social and hosted by The Lyell Centre.

More information:
iapetus.ac.uk/studentships...

Please share!
PROTECTION OF SEABED CARBON IN SHELF SEDIMENT
iapetus.ac.uk
October 31, 2025 at 10:17 AM
mdiesing.bsky.social
🌊While we currently lack a consensus on the magnitude of organic carbon remineralisation through bottom trawling, there is an urgent need to address the ongoing climate crisis.
Here we map hotspots and coldspots of organic carbon in Norway to guide marine spatial planning.
doi.org/10.1088/2515...
Hotspots and coldspots of seabed organic carbon on the Norwegian continental margin - IOPscience
Hotspots and coldspots of seabed organic carbon on the Norwegian continental margin, Diesing, Markus, Smeaton, Craig, Bjarnadóttir, Lilja Rún, Thorsnes, Terje
doi.org
October 30, 2025 at 12:46 PM
Reposted by Markus Diesing
biogeochembilly.bsky.social
Really please to see this out. Led by @drmarkyc.bsky.social our paper on how to Improve #bluecarbon stock estimates 🧪🌊 share.google/m48qdGvQ8kpE...
Improving marine sediment carbon stock estimates: the role of dry bulk density and predictor adjustments
Abstract. Continental shelves are critical for the global carbon cycle as they store substantial amounts of organic carbon (OC). Shelf sediments can also be subject to considerable anthropogenic press...
share.google
October 23, 2025 at 7:14 PM
Reposted by Markus Diesing
drmarkyc.bsky.social
Local variations in environmental predictors and dry bulk density measurements have a significant influence on #bluecarbon stock estimates in marine sediments 🌎🌊🔍

read all about it 👇
bg.copernicus.org/articles/22/...

@mdiesing.bsky.social @biogeochembilly.bsky.social
Improving marine sediment carbon stock estimates: the role of dry bulk density and predictor adjustments
Abstract. Continental shelves are critical for the global carbon cycle as they store substantial amounts of organic carbon (OC). Shelf sediments can also be subject to considerable anthropogenic press...
bg.copernicus.org
October 24, 2025 at 6:37 AM
mdiesing.bsky.social
Mareano har kartlagt havbunnen i 20 år 🥳

Torsdag 23. oktober, presenterer Mareano både de nyeste resultatene og høydepunkt fra tidligere år på jubileumskonferansen.

Konferansen blir strømmet direkte fra kl. 9.30 og kan følges her: videoforweb.aventia.no/live/370
God på bunn! Mareano inviterer til 20-årsjubileum. I bakgrunnen vises havbunnen kartlagt med multistråleekkolodd.
October 22, 2025 at 2:07 PM
mdiesing.bsky.social
Vil du jobbe med havbunnskartlegging i NGU?

Vi har ledige stillinger som forskere i maringeologi ved vårt hovedkontor i Trondheim - 1 fast stilling og ett årsvikariat.

Søknadsfrist: 15.10.2025

102020.webcruiter.no/Main/Recruit...
Vil du jobbe med havbunnskartlegging i NGU?
NGU har ledige stillinger som forskere i maringeologi ved vårt hovedkontor i Trondheim - 1 fast stilling og ett årsvikariat.Maringeologi ved NGU arbeider med et bredt spekter av oppgaver innen havbunn...
102020.webcruiter.no
September 30, 2025 at 8:52 AM
mdiesing.bsky.social
@agu.org Ocean Sciences Meeting 2026 in Glasgow.
CM002 - Anthropogenic Impacts on #BlueCarbon Habitats: Evidence for Management and Protection Needs

The deadline to submit an abstract is fast approaching!

Submit your abstract until 20th August here: agu.confex.com/agu/osm26/pr...
August 18, 2025 at 7:57 AM
Reposted by Markus Diesing
agu.org
🌊 Submit Your Research to #OSM26!

The global conference for ocean sciences and the ocean-related community taking place 22-27 February 2026 in Glasgow, Scotland.

Celebrate the power of collective discovery by showcasing your work in a world stage.

➡️Submit an abstract by 20 Aug: buff.ly/vBlrVDV
August 5, 2025 at 7:06 PM
mdiesing.bsky.social
🌊Calling all #BlueCarbon researchers! We’re inviting abstract submissions for our #OSM26 session:

CM002 - Anthropogenic Impacts on Blue Carbon Habitats: Evidence for Management and Protection Needs

📅 Abstract submission deadline: 20 August 2025

Submit here: agu.confex.com/agu/osm26/pr...
A logo of the Ocean Science Meeting to be held in Glasgow, Scotland from 22 to 27 February 2026 with a tartan pattern in the background.
July 14, 2025 at 11:02 AM
mdiesing.bsky.social
🌊 V𝐢𝐬𝐬𝐭𝐞 𝐝𝐮 𝐚𝐭 𝐡𝐚𝐯𝐛𝐮𝐧𝐧𝐞𝐧 𝐟𝐮𝐧𝐠𝐞𝐫𝐞𝐫 𝐬𝐨𝐦 𝐞𝐭 𝐚𝐯 𝐯𝐞𝐫𝐝𝐞𝐧𝐬 𝐬𝐭ø𝐫𝐬𝐭𝐞 𝐤𝐚𝐫𝐛𝐨𝐧𝐥𝐚𝐠𝐞𝐫?
Men hvordan lagres karbonet, hvor lagres det, og hvordan påvirkes karbonlagrene av aktiviteter som bunntråling og snurrevad?
ℹ️ Her får du oversikt over hvordan havets egen karbonfangst skjer: www.ngu.no/nyheter/karb...
May 27, 2025 at 11:14 AM
mdiesing.bsky.social
🌊 #EGU25 @egu.eu @egubg.bsky.social
We have a new estimate on how much organic carbon is buried in continental margin sediments globally.

If you are interested, come and see me on Monday, 28 Apr, 08:30–10:15 in Hall X1, Poster X1.31.

meetingorganizer.copernicus.org/EGU25/EGU25-...
April 27, 2025 at 10:38 AM
mdiesing.bsky.social
#train2egu begins in Trondheim for me. First leg is to Oslo. See you in Vienna at #EGU25.
A platform at Trondheim train station with a train to Oslo waiting for departure.
April 25, 2025 at 3:54 AM
Reposted by Markus Diesing
baumlab.bsky.social
We're Hiring for 8 Positions!! Interested in conducting research on nature based solutions in Canada's coastal ecosystems? Blue Carbon Canada is recruiting 3 PDFs & 5 PhD students for Sept. 2025 in partnership w @wwfcanada.org www.bluecarboncanada.ca/were-recruit... Open to int'l scholars Pls repost
We're Recruiting! — Blue Carbon Canada
www.bluecarboncanada.ca
April 14, 2025 at 4:49 PM
Reposted by Markus Diesing
grahamepstein.bsky.social
Canada's marine protected area (MPA) network is expanding to reach 30% by 2030. Our new paper argues that natural carbon storage in muddy seafloor sediments should become part of future planning. www.facetsjournal.com/doi/10.1139/... @baumlab.bsky.social @uvicscience.bsky.social
Protection of seabed sediments in Canada's marine conservation network for potential climate change mitigation co-benefit
Marine conserved areas (MCAs) can provide a range of ecological and socio-economic benefits, including climate change mitigation from the protection and enhancement of natural carbon storage. Canada's...
www.facetsjournal.com
January 20, 2025 at 7:39 PM
Reposted by Markus Diesing
seamounty.bsky.social
Our new article out in Science Advances today! 🌊 In Europe we have protected 1% of our deep-sea biodiversity from bottom-contact fishing, but our analysis revealed that 3,500 hours of fishing still occurred within these protected areas. www.science.org/doi/full/10....
January 20, 2025 at 8:14 AM
Reposted by Markus Diesing
jangeerthiddink.bsky.social
New RShiny online application that makes it easy to do targeted searches for publications that relate to the habitat effects of various types of fishing gear in different environmental settings:
fishmaps.shinyapps.io/FishingEffec...
January 14, 2025 at 11:48 AM
mdiesing.bsky.social
🌊 Happy New Year!
If you are working on organic #carbon stored in continental shelf sediments, please remember to submit your #EGU25 abstract by 15th January, 13:00 CET.
Feel free to repost.
@eurogeosciences.bsky.social
mdiesing.bsky.social Markus Diesing @mdiesing.bsky.social · Nov 11
@eurogeosciences.bsky.social abstract submissions is open.

Submit your abstract to session
BG4.11 Blue Carbon Accumulation and Storage in Continental Shelf Sediments.

meetingorganizer.copernicus.org/EGU25/sessio...

Deadline: 15 Jan 25
Deadline if applying for travel grant: 2 Dec 24
January 6, 2025 at 12:48 PM
mdiesing.bsky.social
🌊 New study on the impacts of bottom trawling on organic #carbon in seabed sediments.

-Intense trawling has led to suppressed organic carbon stocks in some parts of the North Sea

-Recovery of stocks would take several decades

However, also a fair bit of criticism:
bsky.app/profile/jang...
cdrmare.bsky.social CDRmare @cdrmare.bsky.social · Dec 17
CDRmare expert Klaus Wallmann is not only working on CCS. The geologist from @geomarkiel.bsky.social was also involved in a new study investigating how bottom trawling influences long-term carbon storage in shelf sea sediments. Read the open-access paper here: lnkd.in/eAgq7gum
December 17, 2024 at 12:44 PM
Reposted by Markus Diesing
i2b-erc.bsky.social
🌊 Join us at #EGU25 for a Blue Arctic Across Time-Scales!
The Arctic is rapidly transforming into a “blue” (ice-free) state, posing profound challenges for our planet and society 🌎
How will a blue Arctic respond to & influence a warmer future climate? meetingorganizer.copernicus.org/EGU25/sessio...
December 9, 2024 at 12:34 PM
mdiesing.bsky.social
🌊
mdiesing.bsky.social Markus Diesing @mdiesing.bsky.social · Nov 11
@eurogeosciences.bsky.social abstract submissions is open.

Submit your abstract to session
BG4.11 Blue Carbon Accumulation and Storage in Continental Shelf Sediments.

meetingorganizer.copernicus.org/EGU25/sessio...

Deadline: 15 Jan 25
Deadline if applying for travel grant: 2 Dec 24
December 6, 2024 at 9:31 AM
Reposted by Markus Diesing
coastalcarbon.bsky.social
If you are an ECR and interested in coming to the UK to work on carbon in the marine and/or coastal environment get in touch as the Royal Society's Newton Fellowship scheme opens in January.

royalsociety.org/grants/newto...
Newton International Fellowships | Royal Society
This fellowship is for non-UK scientists who are at an early stage of their research career and wish to conduct research in the UK.
royalsociety.org
December 3, 2024 at 2:58 PM
Reposted by Markus Diesing
barefootlab.bsky.social
Linnea Henriksson’s first paper just out in JGR-B.

Drivers of Seasonal and Diel #Methane Emissions From a #Seagrass Ecosystem

CO2-equivalent CH4 emissions counteracted 6% of the CO2 uptake, and ~1% of sediment carbon sequestration

agupubs.onlinelibrary.wiley.com/doi/full/10....
November 25, 2024 at 5:20 PM