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Jenn Fehrenbacher

@jennfehrenbacher.bsky.social

270 followers 260 following 36 posts

Assoc. Prof. Oceanography, Biogeochem, Paleoclimate, Climate. Big fan of tiny shells and the stories they tell. Owner at MicroPaleoWorks.

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 2

Need micropaleontology slides? I started a company! MicroPaleoWorks.com. If you need slides, hit me up. Prices range from 1.50 to 2.20 each depending on the variety. We can customize with numbering for a fee. We are a #smallbusiness #womenowned #madeintheUSA using #canadianaluminum & #recycledpaper

MicroPaleoWorks | micropaleoslides

MicroPaleoWorks, a Foraminarium company. Supplier of micropaleoslides for foraminifera and other microfossils or small samples

MicroPaleoWorks.com

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · May 27

The Paleoclimate/Paleoceanography section has an early career session for undergrad, first year grad, first time attendees. It has been very successful. The session was put together by the current section president. I think ALL sections/mtgs should have one of these. @agupaleosection.bsky.social ‪

Reposted by Jenn Fehrenbacher

Galen McKinley @oceancarbon.bsky.social · May 23

www.forbes.com/sites/johndr... The economic benefits of research and the threats to the economy from proposed cuts are an important part of the story.

Trump’s NIH And NSF Cuts Estimated To Cost The U.S. Economy $10 Billion Annually

Economists find public R&D drives U.S. productivity growth — and pays for itself

www.forbes.com

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Reposted by Jenn Fehrenbacher

Aaron Rupar @atrupar.com · May 22

after announcing that foreign students are being banned from Havard, Noem warns "this should be a warning to every other university to get your act together."

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Reposted by Jenn Fehrenbacher

exoCean Laboratory @exoceanlab.bsky.social · May 20

We're away from our lovely light and temperature controlled incubators @exoceanlab.bsky.social, but that doesn't mean we can't keep our plankton happy. @biosstation.bsky.social water baths to the rescue. If you've ever wondered what culturing for trace isotope systems looks like, it's this! #d11B

Dozens of small plastic flasks, each containing an individual foram sit in a temperature controlled water bath, under lights.

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · May 17

Found some more joy in the ocean today! Dolphins playing in the ships wake. #fieldwork #dolphins

Jenn Fehrenbacher @jennfehrenbacher.bsky.social · May 17

When your plankton sample smiles back at you 😊 💙. My colleague Maria Kavanaugh @lifewesea.bsky.social captured this on the IFCB today on board the @noaa.gov F/V Shimada where we are collecting samples in the N. Cali Current. Sometimes the ocean just sends you a little love. #Phytoplankton #Diatoms

Jenn Fehrenbacher @jennfehrenbacher.bsky.social · May 6

Let me know if you are interested in placing an order. I can also send some samples your way.

Jenn Fehrenbacher @jennfehrenbacher.bsky.social · May 6

Sorry I missed this! All slide varieties except for assemblage slides are 2.32-2.36 mm thick without the glass slide, and the assemblage slides are 2.58-2.62. Our aluminum slide holders work with both 0.8-1.0 mm and 1.0-1.2mm microscope slides.

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · May 3

I can feel the anxiety from aaaalllll the way across the pond. The anxiety here is palpable as well.

Giulia Faucher @giuliafaucher.bsky.social · May 2

We had a Symposium on mCDR on the last afternoon of #EGU25 Not easy but still a good one

Yet during EGU25 there was a sense of fear about research. The optimism of past years was missing replaced by anxiety that some science might no longer be done as we’ve known it. This uncertainty is frightening

Five people are on stage: three men on the left side and two women on the right. One woman is speaking at the microphone, while the other speakers are sitting down. There is a slide in the background taken from literature. On the left, a Venn diagram is displayed, and on the right, some cartoons represent different marine carbon dioxide removal techniques. The title of the slide is: Global Marine Solutions for CO2 Removal

Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 28

Whoa! so many CT scans! I do scans on a smaller #microCT scale. I have hundreds of models, but took the website offline temporarily due to copyright issues. It'll be back online this summer. Here's an example: a Globorotalia scitula planktic foraminifera - on the order of maybe 200-300 microns.

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 28

Fitting... Nolite te bastardes carborundorum" is a made-up latin-ish phrase from "The Handmaid's Tale" translated in the book also as "Don't let the bastards grind you down". And here we are... living in a Handmaid's Tale in real life.

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Reposted by Jenn Fehrenbacher

Tessa Hill @tessahill.bsky.social · Apr 25

I’m not going to retweet that NOAA propaganda post about deep sea mining.

Instead, I’ll tell you that I don’t know a single NOAA scientist who would promote deep sea mining in this way, because the available science we have does not justify exploitation of deep sea habitats for minerals.

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 25

I did get some additional rumor mill info from - universities don't track grant reports - they likely know if your report is late. Rumor mill suggests possibility of late or missing reports as grounds for grant termination. Rumors, yes. Did I still login and screenshot my awards report status. Yes.

Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 25

Universities have documentation on awards status. Why take screenshots? downloads? Is any of this actually necessary? Grant intake info resides at institutional research offices. (admittedly, I saw this and instantly downloaded an excel spreadsheet of my grants, but am not sure this is necessary)

Jeremy Berg @jeremymberg.bsky.social · Apr 24

ATTENTION: NSF GRANT RECIPIENTS

We received a heads up from a trusted source that you should proactively download/print/screen shot any documentation on research.gov pertaining to your NSF awards, both those that are current and any that have closed in the last 5-6 years.

1/n

a cartoon of a man holding a frying pan and a spoon with red alert written above him

ALT: a cartoon of a man holding a frying pan and a spoon with red alert written above him

media.tenor.com

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 24

I have over 100 3D models - nearly all extant planktic species, some benthics, and some extinct species. Happy to share the some stl files if you'd like to print them and give them names ;)

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 24

I think one was even named after Tappa's daughter!

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Reposted by Jenn Fehrenbacher

Kau))) @carbon8.bsky.social · Apr 22

Led by Caitlin Reynolds, we (@jennfehrenbacher.bsky.social+ myself+others) have a paper out showing how #Globorotalia #foraminifera captured via #plankton tow can be successfully cultured using marine snow as food! A few persisted >2 months in the lab! 🧪 🌊

pubs.geoscienceworld.org/cushmanfound...

Fig. 4 caption in Reynolds et al. 2024: Globorotalia truncatulinoides (GT22) that grew an additional chamber after 34 days in the laboratory at the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center. The final chamber, panel A, is laboratory grown calcite as determined using measurements of the full length of the entire test (panel B). L1 is the first measured length of GT22 when brought to the laboratory and L2 is the final measurement after the foraminifera was morgued. The ΔL represents the growth of new calcite. In our study, we measured the length of 39 different chambers (F, F1, F2, and F3) on 13 different foraminifera (panel C) and determined 54 microns (mm) is the median length added to the foraminifera after each chamber has grown. In GT22, the ΔL was 52 mm, demonstrating laboratory grown calcite.

Fig. 5 Caption in Reynolds et al. 2025: LA-ICP-MS profiles of 87Sr/88Sr ratio through the last 4 chambers in the final whorl of a Globorotalia menardii specimen (GM19) grown in 87Sr labeled seawater in the laboratory at the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center.

FIGURE 3. Images of living Globorotalia menardii (A–B), Globorotalia crassaformis (C), and Globorotalia truncatulinoides (D–I) specimens in laboratory culture at the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center.

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 21

The tulips at the Wooden Shoe Tulip Farm in Woodburn, Oregon are in full bloom. It is truly a spectacular sight.

A field of pink, red, and yellow tulips beneath a blue sky with white clouds.

A field of white, red, and yellow tulips beneath a blue sky with white clouds

A field of bright red and purple tulips with some distant trees. The sky is blue and has white puffy clouds.

Rows of tulips into the horizon beneath a blue sky with white puffy clouds

Reposted by Jenn Fehrenbacher

Michael J. Warren @drmjwarren.bsky.social · Apr 17

Hello! I'm Michael Warren and I write about birds/nature in early culture. The Cuckoo's Lea is out soon and with cuckoos now arriving this seemed like the perfect time for my debut post. I'll be posting lots on birds in our place-names, starting with cuckoos tomorrow! #naturewriting #birdsandplace

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Reposted by Jenn Fehrenbacher

Galen McKinley @oceancarbon.bsky.social · Apr 17

When state support for science fails | Science www.science.org/doi/10.1126/... Science strengthens society and grows economies. US citizens and lawmakers should heed the warning of this article, and note China's major STEM investments. The US should be increasing federal investment in science!

When state support for science fails

The establishment and growth of scientific communities require long-term planning, political backing, and social and economic support. In many Latin American countries, these entities have been repeat...

www.science.org

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 15

It was so great to see you last week. Your book talk was inspiring. YOU are inspiring. Things right now are hard and discouraging and I left your talk with a renewed sense of hope that we WILL get through this. Because we will. Thank you for continuing to spread such contagious positivity.

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 12

We have a little zoo here with 5 pets (few foster fails during COVID). Last summer, they were chillin' in my back yard & I got these great photos.... little pet photoshoot. The only one that wouldn't cooperate was Gus the Russian Blue (not pictured). #fosterfails #snowshoe #tabby #caturday

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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 9

They looked fluid filled, like vacuoles. I have some videos. I'll send them to you via email. So very weird.

Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 9

Hey @juliemeilland.bsky.social @seavdavis.bsky.social @paleobluedot.bsky.social @lauralhaynes.bsky.social Have you observed this in cultured forams?

Jenn Fehrenbacher @jennfehrenbacher.bsky.social · Apr 9

Low pH and reduced carbonate ion - the shells were very thin. we have microCT scans of them and are processing the data to compare to the shells that we grew under ambient conditions. The species with symbionts had an abundance of them - more than usual.