Oxygen and biogeochemical dynamics along the west African margin
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westafricanmargin.bsky.social
Oxygen and biogeochemical dynamics along the west African margin
@westafricanmargin.bsky.social
An African-led international team advancing ocean research by exploring oxygen dynamics, ecosystem impacts, and climate along the West African margin 🌍🌊

https://bio.link/westafricanmargin
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📣 Project Launch: Oxygen and biogeochemical dynamics along the west African margin (WAM): Processes and consequences 🌍

An interdisciplinary research project on ocean deoxygenation, funded by @schmidtsciences.bsky.social within the Ocean Biogeochemistry Virtual Institute (OBVI).
Exciting progress from the WAM team! Our new Wave Glider is being sea trialed today before sensor integration & deployment in the Southern Benguela Upwelling System. Thanks to Schmidt Sciences support, we'll advance understanding of ocean dynamics & low-oxygen events.
#OceanScience #WaveGlider
November 11, 2025 at 12:11 PM
An exciting Nautilus article spotlights SUBSEA, a Schmidt Sciences–funded project under OBVI, exploring carbon flow through ocean gyres 🌊

Proud to see Sarah Fawcett, Raquel Flynn & Calvin Swart from the WAM Project part of this global effort.

🔗 nautil.us/modeling-the...

#OceanScience #OBVI
Modeling the Deep
Modeling the Deep: An ambitious mission seeks to map the flow of crucial chemicals through marine food webs in far-flung oceanic gyres.
nautil.us
October 23, 2025 at 7:19 AM
The WAM Ecosystem Modelling team from UCT and UNAM met today for a focused project meeting to brainstorm, align, and plan the next steps in their collaborative research.

Here’s to continued teamwork and shared discovery! 🤝

#WAMProject #OBVI #OceanScience
October 20, 2025 at 3:00 PM
Reflecting on an inspiring week at the WAM Meeting in Cape Town. A week filled with collaboration, meaningful discussions, and shared purpose as we continue advancing research on oxygen and biogeochemical dynamics along the West African margin.

#WAMMeeting #OBVI #OceanScience #CapeTown
October 20, 2025 at 2:38 PM
Updates from the final 2 days of the #WAMMeeting 🌊
Breakout sessions aligned cruise plans & model synergies, plus talks on outreach, science communication, and ECR training. A great end to a week of collaboration & innovation in Cape Town! 🌍
#OceanScience #OBVI
October 17, 2025 at 2:03 PM
Day 2 of the #WAMMeeting
Half the group visited Sea Technology Services to see the ocean gliders, while others toured the V&A Waterfront by Duckboat 🌊
Now hearing from Dr Sarah Nicholson (SOCCO) before more talks and collaborative discussions!

#WAMProject #OceanScience
October 15, 2025 at 9:43 AM
The WAM Meeting is underway in Cape Town!
Researchers from across the WAM teams have gathered to share science and ideas on oxygen and biogeochemical dynamics along the West African margin.

🌊 Stay tuned for updates and highlights from the week!

#WAMProject #MarineScience #CapeTown #OceanResearch
October 14, 2025 at 10:36 AM
The WAM Meeting 2025 is next week in Cape Town! 🌊

Our teams will come together to share research and plan the next phase of our work on oxygen and biogeochemical dynamics along the West African margin.

#WAMProject #OceanScience #CapeTown
October 10, 2025 at 8:28 AM
Sea trials in Cape Town🌊 The SA-RobOTIC crew carrying out sea trials with the new Slocum G3 glider, fitted with a SUNA sensor, beneath Table Mountain. The glider will soon collect nitrate and oxygen data for WAM’s ocean research.
📸 Photo credit: Sean Lavis
#SeaTechnologyServices #SchmidtSciences
October 7, 2025 at 2:01 PM
New paper out in Global Biogeochemical Cycles! 🌍🌊
We used isotopic tracers to show how sediments shape nitrous oxide (N₂O) production in the Southern Benguela Upwelling System, linking oxygen, nutrient cycling, and climate.

Read it here 👉 agupubs.onlinelibrary.wiley.com/doi/10.1029/...
The Role of Sediments in Modulating Nitrous Oxide Production in the Southern Benguela Upwelling System: Insights From Stable Isotopic Tracers
Nitrous oxide accumulates on the hypoxic Southern Benguela Upwelling System shelf in late-summer Isotopic evidence reveals that nitrous oxide in the water column is predominantly of sedimentary o...
agupubs.onlinelibrary.wiley.com
October 2, 2025 at 1:30 PM
Meet the WAM Biogeochemical Modelling Team 🌍

Using high-resolution models and ocean data, this team explores oxygen dynamics, nutrient cycling, and productivity along the West African margin to understand drivers of hypoxia and ecosystem change.

#TeamWAM #OceanScience #ClimateResearch
September 25, 2025 at 2:40 PM
Say hello to the 'Ocean Observations: Nitrogen, Carbon, and Oxygen' Team! 🌊 They’re measuring nitrogen, carbon, and oxygen at sea to uncover how these cycles shape productivity, nutrient supply, and oxygen variability along the West African margin.

#TeamWAM #OceanScience #Biogeochemistry
August 25, 2025 at 5:40 PM
Meet the WAM Project Support Team! 🔧
This dedicated group ensures the smooth operation of the WAM project, from managing finances and logistics to maintaining lab equipment and supporting sample analysis.
#WAMProject #SupportTeam #ScienceLogistics #BehindTheScenes #TeamWAM
August 7, 2025 at 10:03 AM
Reposted by Oxygen and biogeochemical dynamics along the west African margin
Geology rocks. During #salasygomez expedition, ROV pilots collected this footage on the western flank of an unnamed seamount. It shows how vital seamounts & rocky surfaces are in the deep Ocean, providing a habitat for animals to cling to in water column & access to nutrients.
July 14, 2025 at 10:07 PM
Say hello to the Atmosphere-Ocean Interactions Team!
They’re unravelling how ocean-atmosphere exchanges shape marine chemistry and climate, from nitrogen isotope work to aerosol impacts. Another key part of the WAM puzzle!

#WAMproject #MarineScience #Biogeochemistry #ClimateResearch #TeamIntro
July 11, 2025 at 9:46 AM
Meet the WAM Ecosystem Modelling Team!
They’re using ecosystem modelling tools to explore how changing oxygen levels affect marine ecosystems in the Benguela Current.
#WAMProject #MarineModelling #BenguelaCurrent #ScienceForSustainability
July 2, 2025 at 3:24 PM
Say hello to the WAM Trace Metals Team!
They’re investigating how metals move through aquatic systems and affect productivity in low-oxygen waters, from the lower Orange River to the Benguela Upwelling.
#WAMProject #TraceMetals #MarineBiogeochemistry #OceanResearch
July 2, 2025 at 2:37 PM
Meet the Ocean Robotics Team!
Using gliders packed with sensors, the team is studying how physical and biogeochemical processes control oxygen variability along the West African Margin. A key step in understanding low-oxygen zones and their climate impacts.
#WAMproject #OceanRobotics #GliderScience
June 18, 2025 at 2:12 PM
It’s #WorldOceansDay!🌊 The theme this year? Catalysing Action for Our Ocean & Climate. At WAM, we’re tackling a quiet crisis: ocean deoxygenation. Less oxygen = more risk for marine life + food security. We’re building models & collecting data to turn science into action. #WAMProject #OceanClimate
June 8, 2025 at 5:31 PM
Polymetallic nodules can generate oxygen in total darkness, no sunlight needed. As WAM explores oxygen dynamics along the West African margin, findings like this show how much we still don’t know about deep-sea systems.

🔗 www.nature.com/articles/s41...
#WAMProject #DarkOxygen #DeepSeaScience
Evidence of dark oxygen production at the abyssal seafloor - Nature Geoscience
Oxygen is generated abiotically at the abyssal seafloor in the presence of polymetallic nodules, potentially by seawater electrolysis, according to in situ chamber and ex situ incubation experiments.
www.nature.com
May 21, 2025 at 1:37 PM
From 9–16 April, WAM team members joined a routine survey aboard RV Mirabilis along the Namibian coast. The cruise coincided with a major marine die-off. Early results point to extreme anoxic conditions, key to WAM’s focus on oxygen-deficient zones. 📷: Sina Wallschuss
May 15, 2025 at 10:11 AM
Mass die-off of octopuses, lobsters & fish on the Namibian coast signals growing ocean stress. Hypoxia, possibly from stratification or sulphur eruptions, may be to blame. WAM scientists were on a cruise collecting data during the event. More updates soon.

🔗 [Link]
#WAMScience
Huge octopus die-off on Namibian beaches
As thousands of dead octopuses, lobsters and fish lie dying or dead along Swakopmund beaches, the debate continues about what could have been the cause. Whatever it is, it’s bad news for the fragile c...
www.dailymaverick.co.za
April 29, 2025 at 9:09 AM
New WAM Team Member: Slocum G3 Glider 🌊

Meet our newest arrival, the Slocum G3 Glider! This advanced autonomous vehicle, managed by SA-RobOTIC and the CSIR, enables efficient, long-term ocean monitoring over extended periods and broad spatial scales.

#SlocumGlider #SeaTechnologyServices #CSIR
April 25, 2025 at 6:57 AM
📣 Project Launch: Oxygen and biogeochemical dynamics along the west African margin (WAM): Processes and consequences 🌍

An interdisciplinary research project on ocean deoxygenation, funded by @schmidtsciences.bsky.social within the Ocean Biogeochemistry Virtual Institute (OBVI).
April 14, 2025 at 12:27 PM