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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 15h

This week we are analyzing seawater samples collected during the NOAA Fisheries Northern Bering Sea survey! #FieldworkFriday #OceanAcidification 🧪🌊🦑🙌 📸 J. Gann

Four oceanographers in waterproof gear, steel toed boots, hard hats, and life jackets show enthusiasm for ocean going field work aboard a research vessel in the Northern Bering Sea!

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 09/10/2026

#WorldOctopusDay 🧪🌊🦑🐙 This shipmate was collected during an #Arctic oceanographic research survey aboard @uafairbanks.bsky.social Research Vessel Sikuliaq 📸 S. Sandy

An octopus was collected in a benthic grab sample in the Pacific Arctic Region's Distributed Biological Observatory in the Chukchi Sea.

The orange/brown colored octopus is on the edge of a blue bucket.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 09/10/2026

Seward Science Symposium is next week! 🧪🌊🦑 October 15-17, 2026

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 06/10/2026

The Alaska #OceanAcidification Network is your place to learn about marine carbon dioxide removal #mCDR. 🧪🌊🦑 aoan.aoos.org

Marine Carbon Dioxide Removal
(mCDR) - An intro for Alaskans
Examples of proposed mCDR techniques
ALKALINITY ENHANCEMENT
Adding crushed minerals to or removing acid from seawater to help it absorb
more CO₂.
OCEAN FERTILIZATION
Adding nutrients, like iron, to encourage phytoplankton blooms that pull CO₂
from the atmosphere.
SEAWEED FARMING FOR CARBON STORAGE
Growing kelp or seaweed at large scales, then sinking it into deep ocean
areas, or creating durable goods to store the carbon it absorbed.
If successful, mCDR could provide benefits for Alaska’s marine ecosystems and coastal livelihoods. If done
irresponsibly, it could also result in environmental and economic risks and pose complex tradeoffs. There
is a need for coastal Alaskans to have a voice in shaping the emerging field.

https://aoan.aoos.org/marine-carbon-dioxide-removal/

Questions?
Statewide Contact
Darcy Dugan: dugan@aoos.org
Website: https://aoan.aoos.org/marinecarbon-dioxide-removal/

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Reposted by Ocean Acidification Research Center

Alaska NSF EPSCoR @alaskaepscor.bsky.social · 21/09/2026

AK EPSCoR is offering a limited number of Travel Awards for students to present at either the Alaska Marine Science Symposium, the Alaska Forum, the Kachemak Bay Science Conference or the Mariculture Conference of Alaska. Info & link: www.alaska.edu/epscor/oppor...

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 02/10/2026

🗓️ Save the date, March 15-18, 2027 Mariculture Conference of Alaska #AlaskaSeaGrant #Mariculture #AlaskaSky 🧪🌊🦑🦪 alaskaseagrant.org/events/2027-...

Alaska Sea Grant flyer to dave the date for the Mariculture Conference of Alaska.

March 15 to 18, 2027
Ted Ferry Civic Center
Ketchikan, Alaska

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Reposted by Ocean Acidification Research Center

Rick Thoman @alaskawx.bsky.social · 27/09/2026

Sea ice extent is increasing quickly now in the seas north of Alaska, though most of the growth is still north of 75°N in NSIDC data. The annual sea ice minimum extent in the Chukchi Sea occurred on Sep 15 and in the Beaufort Sea on Sep 20. Neither were a "top ten" lowest. #akwx #Arctic #SeaIce

Left: Daily sea ice extent for the combined Chukchi and Beaufort Seas 1979-2026 with the past two years and the smoothed 1991-2020 median highlighted. Right: NWS Alaska Sea Ice Program sea ice concentration analysis to September 26, 2026.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 28/09/2026

Strait Science Seminar #AlaskaSky 🧪🌊🦑🦭 Mercury Concentrations in northern fur seals of the #BeringSea www.uaf.edu/nwc/outreach...

Flyer for the Strait Science Seminar from the University of Alaska Fairbanks Northwest Campus Alaska Sea Grant office reads:

Join us via ZOOM for the next presentation in our Strait Science series…

MERCURY CONCENTRATIONS IN NORTHERN FUR SEALS OF THE BERING SEA

Thursday, October 1 | 6:30 pm | VIA ZOOM

Mercury (natural and/or manmade) is a heavy metal that exists in the marine food web. Mercury can accumulate in long-lived wildlife - important for human consumption. Orlin will share results of his research on mercury levels in adult female fur seals from the Pribilof Islands. Come hear his plans to research mercury levels in subsistence seafoods from Nome and Savoonga.

Join Zoom Meeting

https://tinyurl.com/2vfwb4wx

Meeting ID: 834 3150 0550 Passcode: 576011

Or call: 253 215 8782

Orlin Gologergen is a graduate student at the University of Alaska Anchorage.

Strait Science (UAF): https://www.uaf.edu/nwc/outreach/strait-science.php

Strait Science (YouTube): https://www.youtube.com/playlist?list=PLuuqkhFcq8ifdnRxDaKYiRiewrQSvzcA6

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 25/09/2026

Happy Postdoc Appreciation Week Dr. Esther Kennedy! Congratulations on your last day and good luck in your new position! 🧪🌊🦑🙌

Dr. Esther Kennedy collects seawater samples aboard the NOAA Ship Oscar Dyson during the 2022 Bering Arctic Subarctic Integrated Survey.

Esther has been a colleague with our group during her positions at the Sitka Tribe of Alaska, PhD graduate student at UCDavis, Research Professional at University of Alaska Fairbanks, and Postdoc at University of Alaska Southeast!

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 25/09/2026

#FieldworkFriday 🧪🌊🦑🦀 @uafairbanks.bsky.social graduate student Teighan Shore is working with the #BeringSea Research Center on a project studying #OceanAcidification and red king crab. We are analyzing seawater samples for their project. www.beringseacampus.com

Bering Sea Research Center staff observe adult female crabs just after arrival into the hatchery.

https://www.beringseacampus.com/
The Bering Sea Research Center accommodates academic researchers, institutional partnerships, government agencies, and private research focused on Arctic, marine and coastal ecosystems.

We support interdisciplinary collaboration across Indigenous and academic, federal, state, and community-based initiatives, providing infrastructure that advances research excellence, strategic program implementation, and long-term Arctic engagement.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 23/09/2026

2026 @agu.org Rachel Carson Lecture 🧪🌊🦑🏅 Congratulations Dr. Jacqueline Grebmeier! @uafairbanks.bsky.social alum! 💙🐻‍❄️ 💛 www.umces.edu/directory/ja...

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 23/09/2026

David Perlman Award for Excellence in Science Journalism @alaskabeacon.com @agu.org Congratulations!! @yjrosen.bsky.social @corinne-smith.bsky.social 🙌🧪🌊🦑🏅

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 22/09/2026

@tamamta.bsky.social will have a seminar September 24, 2026 at 3:40pm AKDT #AlaskaSky 🧪🌊🦑 Uplifting Indigenous shellfish restoration efforts: Reflections of community research in Kake, AK www.tamamta.org

Flyer for the Tamamta seminar on Thursday September 24, 3:40-4:40pm AKDT by Dr. Sonia Ibarra.

Seminar Title: Uplifting Indigenous shellfish restoration efforts: Reflections of community research in Kake, AK

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 22/09/2026

Great list @agu.org! We are here for the ocean data products! 🧪🌊🦑🙌 Sea Ice Index @zacklabe.com @nsidc.bsky.social Argo @bgc-argo.bsky.social CALCOFI @scrippsocean.bsky.social GLODAP @sivlauvset.bsky.social World Ocean Database #NOAA

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 21/09/2026

"Planetary Boundaries describe processes that must remain within safe limits to preserve stability and resilience... #OceanAcidification is the latest to breach its boundary..." 🧪🌊🦑 @oaalliance.bsky.social @unoceandecade.bsky.social #UNOceanDecade #OneOcean @unep.org @pik-potsdam.bsky.social

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Rick Thoman @alaskawx.bsky.social · 20/09/2026

Sea ice extent in the Chukchi Sea reached the seasonal minimum on Tuesday while sea ice extent in the Beaufort Sea was still (very slowly) decreasing as of Saturday. Together, ice extent to the north and west of Alaska reached the season minimum on Wednesday, September 16. #akwx #Arctic #SeaIce

Left: Combined daily sea ice extent in the Chukchi and Beaufort Seas 1979-2026 with the past two years and the smoothed 1991-2020 median highlighted. Right: sea ice concentration analysis to September 19, 2026 from NWS Alaska Sea Ice program.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 18/09/2026

#FieldworkFriday #AlaskaSky 🧪🌊🦑 This week we are analyzing seawater samples collected by @uafairbanks.bsky.social oceanographers partnering with the National Park Service to detect #OceanAcidification in #GlacierBay and #WrangellStElias. www.nps.gov/articles/000...

University of Alaska Fairbanks oceanographers deploy equipment to observe seawater properties such as temperature, salinity, and dissolved oxygen. The vertical sample bottles collect seawater at various depth to later analyze for chlorophyll, nutrients, and carbonate chemistry.

This oceanographic research station is in a glacial fjord in the northeast Pacific offshore Alaska.

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Reposted by Ocean Acidification Research Center

CIRES @cires.colorado.edu · 14/09/2026

ICYMI: the Arctic Report Card will continue under its independent editorial team – led by researchers at CIRES @colorado.edu and @uafairbanks.bsky.social – with new support from @agu.org. cires.colorado.edu/news/2026-ar...

cires.colorado.edu

2026 Arctic Report Card finds critical support from strategic partners

The highly anticipated yearly assessment will continue under its independent editorial team led by CIRES researchers

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 17/09/2026

🚨 #JobAlert 🧪🌊🦑 The University of Miami Ocean Carbon group and NOAA’s Atlantic Oceanographic and Meteorological Laboratory are hiring three positions. One position is focused on general carbon lab measurements and participation in research cruises: careers.miami.edu/us/en/job/R1...

careers.miami.edu

Senior Research Associate I in Miami, Florida, United States of America | Research at University of Miami

Apply for Senior Research Associate I job with University of Miami in Miami, Florida, United States of America. Research at University of Miami

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 16/09/2026

Our Gulf of Alaska #OceanAcidification buoy site has mostly observed below average sea surface temperatures in 2026 when compared to our full record. 🧪🌊🦑🛟 #GAKOA

Project
Mooring site GAKOA in the northern Gulf of Alaska is led by University of Alaska Fairbanks Ocean Acidification Research Center (UAF OARC) to observe seawater carbon dioxide to detect ocean acidification. All surface observations at GAKOA show a strong seasonal signal.

Figures
The top panel shows observations of the difference in the partial pressure of carbon dioxide (ΔpCO₂) between one meter above the sea-air interface and one meter below the sea-air interface. A negative value indicates the seawater pCO₂ is lower than air, and the site is a carbon dioxide sink to the atmosphere. Seawater carbon dioxide is consumed by phytoplankton during the summer, resulting in more negative ΔpCO₂ values.

The middle panel is surface seawater temperature (SST), observed by a seaCAT sensor moored one meter below the sea-air interface.

The bottom panel is surface seawater salinity (SSS), observed by a seaCAT sensor moored one meter below the sea-air interface.

The dark black line is the site average, the gray lines are the final and archived data from previous deployments (i.e., 2011-2025), and the blue dots are the 3-hour, raw data from the current deployment.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 16/09/2026

@alaskawx.bsky.social has the latest update on sea surface temperatures around Alaska. 🧪🌊🦑 #ACCAP alaskaclimate.substack.com/p/alaska-aug...

Globally, about 80 percent of the oceans had sea surface temperatures (SSTs) that were above the 1991-2020 baseline average in August. Close to Alaska, SSTs in the Gulf of Alaska were fairly evenly split between above and below normal, though the departures were not large (Fig. 4a) While the Bering Sea was also about split about 50-50 above/below normal, SSTs in the southeast Bering Sea, were significantly cooler than normal, as has been the case most of the summer. Parts of the area south and southwest of Nunivak Island, including around the Pribilof Islands, had a “top five” coolest August SST (since 1980). North of the Bering Strait, SSTs were mostly below normal due to late sea ice melt. However, along a narrow near-coastal strip on the western North Slope coast from Point Lay to Utqiaġvik, SSTs were significantly warmer than average.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 16/09/2026

5️⃣ Number of times #OceanAcidification was discussed during the AK Fisheries 🇺🇸 Senate debate #AlaskaSky Stay up to date on this topic by subscribing to the Alaska Ocean Acidification Network newsletter. 🧪🌊🦑 aoos.org/alaska-ocean-acidification-network/

youtube.com

LIVE: 2026 Alaska Congressional Fisheries Debates | U.S. House & Senate

YouTube video by Kodiak Chamber of Commerce

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Reposted by Ocean Acidification Research Center

KTOO Public Media @ktoopublicmedia.bsky.social · 11/09/2026

The news comes after the National Oceanic and Atmospheric Administration pulled its funding for the report in August. Rick Thoman, a longtime editor, said the people who put the report together are excited to be able to say it definitely will come out this year. (From KNBA - Anchorage)

ktoo.org

Arctic Report Card gets new supporters after NOAA cut funding

The American Geophysical Union is fundraising for the climate report's long-term publication.

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Reposted by Ocean Acidification Research Center

Rick Thoman @alaskawx.bsky.social · 13/09/2026

Sea ice extent in both the Chukchi and Beaufort seas is at the lowest of the season, though it's still the highest for September 12 since 2018 in NSIDC data. The ongoing stormy weather is likely to increase the open water area at least a bit in the next few days. #akwx #Arctic #SeaIce

Left: Combined daily sea ice extent in the Chukchi and Beaufort Seas 1979 to 2026, with the past two years and the smoothed 1991-2020 median highlighted. Right: NWS Alaska Sea Ice Program sea ice concentration analysis to September 12, 2026.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 14/09/2026

Strait Science 🗓️ September 16, 6:30pm AKDT Bowhead Whale Harvest Quota & the IWC: History & Process #AlaskaSky #AlaskaSeaGrant 🧪🌊🦑🐋

Flyer for the University of Alaska Northwest Campus Strait Science seminar series with Alaska Sea Grant.

BOWHEAD WHALE HARVEST QUOTA & THE IWC: HISTORY & PROCESS

Wednesday, Sep 16 | 6:30 pm | VIA ZOOM

The bowhead whale harvest quota is set by the International Whaling Commission (IWC). The quota ensures continued sustainable use of bowheads by the Alaska Eskimo Whaling Commission (11 tribes) + several communities in Chukotka, Russia. Come hear the history, process (and types of info needed), for setting the IWC bowhead quota. Bring questions!

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 10/09/2026

The ocean absorbs 27% of human caused carbon dioxide emissions. As the CO₂ reacts with seawater, ocean pH decreases causing #OceanAcidification. 🧪🌊🦑 📈📉 by NOAA and @soest.hawaii.edu

The National Oceanic and Atmospheric Administration's Carbon Program at the Pacific Marine Environmental Laboratory leads a global ocean observing program to track seawater carbon dioxide and ocean acidification.

In this graph from the Hawaii Carbon Dioxide Time-Series, the red data are observations from the Mauna Loa observatory monitoring atmospheric carbon dioxide, the green data are observations from the University of Hawaii at Mānoa ocean station ALOHA monitoring seawater carbon dioxide, and the blue data are observations from ALOHA monitoring seawater pH.

Find this graph at https://www.pmel.noaa.gov/co2/file/Hawaii+Carbon+Dioxide+Time-Series

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 10/09/2026

Welcome! @tiniscientific.bsky.social 🧪🌊🦑 🙌🦋 We have been a pool swim beta tester and enjoy thinking about oceanography while counting laps. 🍎⌚🏊‍♀️

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 09/09/2026

@aslo.org 2027 🇵🇷 abstracts are due Sept 15, 2026 Session 6: Interacting Ocean Stressors and Their Compound Impacts on Marine Ecosystems. Stressors: ocean warming, hypoxia, #OceanAcidification, and harmful algal blooms #HABs 🧪🌊🦑 www.aslo.org/san-juan-2027/

aslo.org

2027 Aquatic Sciences Meeting - ASLO

The theme of the 2023 Aquatic sciences Meeting is Resilience and Recovery in Aquatic Systems. We encourage submissions that examine these topics and invite you to contribute special sessions on topics...

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 09/09/2026

Check out the new interface for ocean carbon dioxide (CO₂) products! 🧪🌊🦑🙌 A catalogue of 78 ocean carbonate data products — from shipboard measurements to multi-product analyses. @socatco2.bsky.social @usocb.bsky.social oceanco2.github.io/co2-products/

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 09/09/2026

The North Pacific Research Board #NPRB is accepting applications for the annual photography awards. Don't miss the special category that combines photography and writing to tell a collective story about Alaska’s marine waters. #AlaskaSky 🧪🌊🦑📸🖋️ Submit by December 1, 2026 to nprb.org/photo-awards/

Screenshot of the North Pacific Research Board (NPRB) announcement on the annual photography awards, including the photo story collection.

A photograph from Frida Renner shows a fishing vessel in Alaska's marine waters.

The text reads: NPRB is seeking entries in this special category that combine photography and writing to tell a collective story about Alaska’s marine waters. Entries may include an event, a place, a person, process, research expedition, subsistence activities, fishing, etc. Images must be representative of the other award categories. Up to 5 images and 1,000 words per story. Limit one photo story per entrant.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 08/09/2026

The National Fisherman highlights the great work of the Alaska Ocean Observing System! 🧪🌊🦑🙌 @aoos-alaska.bsky.social www.nationalfisherman.com/alaska/aoos-...

nationalfisherman.com

AOOS: Home of Alaska ocean data

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 01/09/2026

This week we are working on Sugpiaq land. 🧪🌊🦑 www.uaf.edu/anlc/

This map shows the indigenous language regions of Alaska. Related languages of neighboring Canada and Russia are also shown. The language boundaries represent traditional territories at approximately 1900 and are based on those established in Michael E. Krauss' Native Peoples and Languages of Alaska map (1974, revised 1982 -- G961K1974b). The current map was generated digitally using geographic information systems (GIS) technology. In addition to language boundaries, the map includes more than 270 indigenous place names in indigenous orthography. An interactive version of this map is currently under development and will be made available on the Alaskool website.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 31/08/2026

UAF Northwest Campus will be holding the next Strait Science seminar on Wednesday, Sept 2, 6:30 pm NOAA Ship Fairweather crew will provide info on their mission in the Bering / Chukchi seas and their work out of the Port of Nome. #AlaskaSky 🧪🌊🦑 Link to Zoom login: www.uaf.edu/nwc/outreach...

Flyer for the Alaska Sea Grant Strait Science seminar from the University of Alaska Fairbanks Northwest Campus in Nome, AK.

Strait Seminar title: NOAA SHIP FAIRWEATHER’S 2026 HYDROGRAPHIC MISSION

Time and date: Wednesday, September 2 | 6:30 pm | VIA ZOOM + NWC Main Building

Topic: NOAA Ship Fairweather has been using the Port of Nome throughout this summer. Who are they and what is their mission? Come hear Fairweather’s crew provide their 2026 hydrographic mapping mission in the Bering / Chukchi seas and how they accomplish their work. Hear their experience and see the latest visuals!

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 27/08/2026

Katie Baldwin Basile is a Alaska Sea Grant Marine Advisory Program's Coastal Resilience Specialist in Mamterilleq (Bethel). Katie uses storytelling to connect science, local and Indigenous Knowledge, and resilience planning. @aoos-alaska.bsky.social #AlaskaSky 🧪🌊🦑 youtu.be/KRD1fLf7bxE?...

youtu.be

Faces of Alaska Sea Grant: Katie Baldwin Basile

YouTube video by AlaskaSeaGrant

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 26/08/2026

Join University of Alaska Bristol Bay Campus and the F/V Mirage captain and crew to learn about the first season using a hybrid vessel in Alaska. 🧪🌊🦑🛥️ #AlaskaSky Thursday, August 27: 12 PM PT | 11 AM AKT | 3 PM ET Register at www.cwcleancities.org/so/bdP-tw5uD...

Commissioning Celebration on F/V Mirage from left to right: Jeff Turner, Vessel Owner/Captain, Linda Benkhen, ALFA Exec. Dir., and Sen. Lisa Murkowski with champagne bottle.

Battery set contained in metal box loaded on vessel. Individuals from left to right: Jeff Turner, Ben Matthys, Ryan Peters (reconfiguration of cabin), Jeremy Serka, owner of Sitka Custom Marine Shipyard).

Hybrid drive installed on F/V Mirage

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 26/08/2026

🚨 #JobAlert #AlaskaSky 🐋🦭🛥️ The ADFG Gulf and Bering marine mammal research team is looking for a person to manage their skiffs. www.governmentjobs.com/careers/%7B0...

Photo from ADFG of a skiff doing marine mammal research.

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Ocean Acidification Research Center @uaf-oarc-alaska.bsky.social · 25/08/2026

We observed cooler surface seawater temperatures #SST during the 2026 deployment of the M2 mooring in the #BeringSea. 🧪🌊🦑🛟

Project
Mooring site M2 in the southeastern Bering Sea is led by the Ecosystems and Fisheries Oceanography Coordinated Investigations (EcoFOCI) program at the NOAA Pacific Marine Environmental Laboratory (PMEL). The University of Alaska Fairbanks Ocean Acidification Research Center (UAF OARC) partners with EcoFOCI to add sensors to observe seawater carbon dioxide to detect ocean acidification at M2.

Figures
The top panel shows observations of the difference in the partial pressure of carbon dioxide (ΔpCO₂) between one meter above the sea-air interface and one meter below the sea-air interface. A negative value indicates the seawater pCO₂ is lower than air, and the site is a carbon dioxide sink to the atmosphere. A positive value indicates the seawater pCO₂ is higher than air, and the site is a carbon dioxide source (shaded area) to the atmosphere. The bottom panel is seawater temperature, observed by a seaCAT sensor moored one meter below the sea-air interface. The dark black line is the site average, the gray lines are the final and archived data from previous deployments (i.e. 2011-2025), and the blue dots are the 3-hour, raw data from the current deployment. All 2026 data are preliminary.

2026
At the time M2 was deployed on May 7, 2026, the spring bloom had begun and ΔpCO₂ was -240 μatm. The surface buoy was recovered on August 11, 2026, and the seasonal drawdown associated with primary productivity was lessening and ΔpCO₂ was returning to near zero (when the seawater pCO₂ and atmospheric pCO₂ are in equilibrium). Overall, seawater temperatures were below average, with seawater at 0.3 degree C at the time of deployment. The 2025-2026 winter was a relatively high sea ice year, relative to the last decade.

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