iiinova — where your digital self keeps evolving

Halley E. Froehlich @dochfroehlich.bsky.social · 18/09/2026

Thrilled to share our new Sea Grant funded publication! 🚨 We define and test (via pilot and modeling) if harvesting biofouling seaweeds can be profitable for #aquaculture. In short: YES, but it depends on the farm & spp that grow on the infrastructure www.frontiersin.org/journals/aqu...

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Halley E. Froehlich @dochfroehlich.bsky.social · 24/07/2026

Enjoying lunch in #Helsinki with the family 🇫🇮😊

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

We dedicate this paper to Dr. Fred Conte, California state Aquaculture Specialist Emeriti of UC Davis Cooperative Extension, who sadly passed in 2021. We thank him posthumously for his deep insight and guidance surrounding oyster #aquaculture in the state (10/10). And thank you Sea Grant!!

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

In all, we found when dramatic, sudden declines occur in wild capture we consistently saw some level of evidence of aquaculture emergence or growth within a 5 year window of time. With variability of food systems projected to increase with time this has important implications for #aquaculture (9/10)

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

Last, but certainly not least, we collected #oyster data going back to 1888 & found more evidence for blue transitions. More specifically, that a 'full blue transition' occurred (no fishing, only farming) sometime in the mid-1930s. But it's hard to say exactly when bc the data were misreported(8/10)

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

That said, incorporating policy effects into a quantitative model is challenging and the number of policies did not improve our predictive model of aquaculture production. What did was CA population, US GDP, and wild catch CV (as we hypothesized!) (7/10)

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

Interestingly, growth was 17x faster in the 1950s compared to the increases after 1980, which we hypothesize maybe due to the proliferation (at the same time as the major fishery shock)of regulations in the state (and nation); a ~2:1 restrictive to enabling policy landscape that emerged (6/10)

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

Overlapping with that 1984 wild shock time period we found a 'breakpoint' in aquaculture growth (dominated by mollusks not fish), with a complete change in average directionality (growth specifically). Importantly this held with a longer, though more uncertain time series (5/10)

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

Aggregating (A LOT OF) different time series of wild and farmed production, we found several shocks (sudden & sig. decline), but the biggest was in 1984 when N. anchovy and yellowfin both collapsed (the red line) (4/10)

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

Why/how would shocks of wild capture influence #aquaculture you ask? Humans are largely reactive, & there is plenty of qualitative examples of things like hatchery interventions, retraining programs, & policies that promote the emergence & growth of aquaculture when wild stocks rapidly decline(3/10)

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

1st we expanded the basic theory based on parallel systems and shock dynamics, hypothesizing that major shocks to wild fisheries (volume & value) may be more likely to influence aquaculture and spur blue transitions, especially short term. Importantly, it doesn't have to be the same species (2/10)

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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026

Excited to share our new OA paper exploring the scales and quantitative drivers of 'blue transitions' (aka fishing🎣 ➡️ aquatic farming🌊🚜) using California as a case study #aquaculture (1/10) iopscience.iop.org/article/10.1...

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Halley E. Froehlich @dochfroehlich.bsky.social · 26/02/2026

Cool paper alert. Was trying to model the thermal performance curves of several farmed seaweed species and ran across this awesome, theoretical unifying paper: “A universal thermal performance curve arises in biology and ecology” www.pnas.org/doi/10.1073/...

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Halley E. Froehlich @dochfroehlich.bsky.social · 19/02/2026

Being nominated and just awarded the Distinguished Early Career by United States Aquaculture Society (USAS) is such an honor, and so bittersweet as I prepare to move to Finland in a few weeks. The #aquaculture research community in the states is honestly incredible. What a send off 🥹 Thank you!!

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Halley E. Froehlich @dochfroehlich.bsky.social · 18/02/2026

My first blocked science troll. This was his response to a perspectives piece we wrote concerning some of the blind spots to his work & others. #Aquaculture is contentious & I’m here for constructive criticism, but this is not it. I’m sure he wants to help the ocean, but this behavior is toxic.

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Halley E. Froehlich @dochfroehlich.bsky.social · 09/02/2026

What a send off for my last year in the US 💙💚💙💚 #GoHawks 12 years ago during grad school in Seattle 🐟

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Halley E. Froehlich @dochfroehlich.bsky.social · 08/02/2026

Me and the kiddo soaking up the last of Santa Barbara while we can ☀️🌊 And yes, that is a white sturgeon on my hat. Thanks for asking. Courtesy of the Dr. Siple 🐟 #GoHawks

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Halley E. Froehlich @dochfroehlich.bsky.social · 08/02/2026

Seeing as how @seahawksofficial.com are also a predatory bird, I think #GoHawks is the right answer for this #SuperbOwl Sunday.

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Halley E. Froehlich @dochfroehlich.bsky.social · 06/02/2026

I just resubmitted revisions to a manuscript that has been in the works for SEVEN years looking at the dynamics between local wild capture and #aquaculture production, as far back as the 1800s. With comments like this, I'm hoping we have an acceptance on our hands...🤞 🎣 ➡️🦪

Well done, this is a significant and novel contribution to the literature. It was refreshing to review such a well presented and robust study.

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Halley E. Froehlich @dochfroehlich.bsky.social · 21/01/2026

You’re right. Nothing is this magical and cute:

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Halley E. Froehlich @dochfroehlich.bsky.social · 10/11/2025

Dr. Claire Gonzales's second dissertation chapter is officially published! She explored the co-location suitability potential of bivalve #aquaculture (mussels) with clean energy (wind & wave) and wild capture fisheries across the California coast. Check it out: papers.ssrn.com/sol3/papers....

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Halley E. Froehlich @dochfroehlich.bsky.social · 03/11/2025

Ever notice small scale #aquaculture (SSA) doesn't seem to get much attention? Us too. We ran a semi-quant synthesis of the the literature and found it is poorly defined, missing from the US & Europe, & underrepresented in marine systems (e.g., oysters) dx.doi.org/10.1111/raq....

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Halley E. Froehlich @dochfroehlich.bsky.social · 01/11/2025

Greggggooorrrr…Happy Halloween 🎃

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Halley E. Froehlich @dochfroehlich.bsky.social · 12/09/2025

My first PhD student successfully defended here dissertation and graduated! Huge congratulations to Dr. Claire Gonzales 🎉🎉🎉🎓🎓🎓 If you have social-ecological questions about co-location of clean energy and #aquaculture, ask her 🐟

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Halley E. Froehlich @dochfroehlich.bsky.social · 02/06/2025

3. Data disconnect. No reference or directive to improve aquaculture data. Yet, NOAA is well positioned to support and house better marine aquaculture data through the Fisheries Information Networks (FINs), which it can't do with all the employee and database cuts. 4/6

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Halley E. Froehlich @dochfroehlich.bsky.social · 02/06/2025

2. Aquaculture overlooked. The recent efforts largely focus on wild capture fisheries, while aquaculture takes a backseat. Aqua is the most regulated food sector, but is only mentioned twice in the new order, compared to 47 times 5 years ago. USDA cuts will hurt small scale farms more. 3/6

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Halley E. Froehlich @dochfroehlich.bsky.social · 02/06/2025

1) Regulatory dismantling instead of reform. Wild fisheries have rebounded bc of regulations, not in spite of them. Yet, one big distinction btw the orders is that there is only one mention of NOAA Fisheries & no mention of sustainability. Loss of Chevron deference is also doing no favors. 2/6

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Halley E. Froehlich @dochfroehlich.bsky.social · 02/06/2025

@jagephart.bsky.social & I have just published an assessment of the new U.S. #Seafood Executive Order, alongside other politically disruptive actions that puts America last. We find 4 troubling escalations & contd misunderstandings of our seafood sector. www.sciencedirect.com/science/arti... 🧵1/6

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Halley E. Froehlich @dochfroehlich.bsky.social · 10/05/2025

On a lighter note, an undergrad in my lab, Andi McNeil, ranked and presented all state fishes for fun (yes that is a thing still!). How can Indiana not have one and why do so many states only have eyes for striped bass??

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Halley E. Froehlich @dochfroehlich.bsky.social · 02/05/2025

Preparing for my daughter’s 3rd birthday. Why, yes that is a giant isopod and hatchet fish going into the party favors.

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Halley E. Froehlich @dochfroehlich.bsky.social · 26/04/2025

Preprint is now up: “Uncertain seafood sustainability in a manufactured crisis”, written with the brilliant @jagephart.bsky.social. We identified 4 major differences/escalations of the 2025 Seafood EO order compared to 2020 and review each. doi.org/10.31223/X5G...

Map of cut or frozen USDA funds and 2023 aquaculture sales per state.

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Halley E. Froehlich @dochfroehlich.bsky.social · 17/04/2025

Just reviewed the demands letter the government sent to Harvard. Strong McCarthy vibes with this administration. Here are just a few of the most insane. Full letter here: s3.documentcloud.org/documents/25...

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Halley E. Froehlich @dochfroehlich.bsky.social · 15/04/2025

Disintegration of regulatory structure and function = INSTABILITY (not more aquaculture per se, for now)

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Halley E. Froehlich @dochfroehlich.bsky.social · 14/04/2025

Senate Faculty of the UCs imploring the higher ups to stand for freedom of speech, academic freedom and safety of our students. Now.

Letter from Academic Senate of the UCs calling on higher ups to stand up for freedom of speech, knowledge and safety.

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Halley E. Froehlich @dochfroehlich.bsky.social · 13/04/2025

From NASA to NOAA. The scientists and science that were and may never be. What an embarrassing, unnecessary, and harmful loss for the country.

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Halley E. Froehlich @dochfroehlich.bsky.social · 07/04/2025

Received a really thoughtful email from a student today. Not only did she love learning about fisheries & aquaculture, she liked my fashion. Ultimate professor status unlocked 💅

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Halley E. Froehlich @dochfroehlich.bsky.social · 31/03/2025

Really insightful take from @theatlantic.com into the demolition of “college life” and what we all lose in the process. apple.news/A6tC4L_lUQLG...

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Halley E. Froehlich @dochfroehlich.bsky.social · 27/03/2025

Just a reminder that people in the U.S., regardless of political affiliation, tend to favor government and polluters paying for conservation efforts...sigh. journals.plos.org/plosone/arti...

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Halley E. Froehlich @dochfroehlich.bsky.social · 18/03/2025

Just trying to compartmentalize current chaos and grow some kelp on long lines in vertical tanks I custom designed for my lab 🥲

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Halley E. Froehlich @dochfroehlich.bsky.social · 13/03/2025

“#Aquaculture is heavily subsidized” seems relative. It’s seemingly so small it was added to wild capture fisheries? Regardless, nice step in comparative data capture.

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Halley E. Froehlich @dochfroehlich.bsky.social · 06/03/2025

Working with spectacular NOAA scientists, we just published "Marine spatial planning and best siting practices to achieve an ecosystem approach to #aquaculture in the United States." An idea started 6 yr ago to guide future siting & planning, finally out! 🐟🌊 www.ingentaconnect.com/content/umrs...

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Halley E. Froehlich @dochfroehlich.bsky.social · 07/02/2025

Finally have clear(er) UC guidance on ICE:

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Halley E. Froehlich @dochfroehlich.bsky.social · 25/01/2025

Whitmore et al. surveyed 769 Maine residents about marine #aquaculture and found most saw it as important for the state and food, with placed-based interactions key to perceptions. Scientists were also important in trust building 🤓 www.sciencedirect.com/science/arti...

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Halley E. Froehlich @dochfroehlich.bsky.social · 14/01/2025

Tomorrow is the Northern cod lecture. Somewhat depressing but one of the best case studies of the complexity and interplay of how a fishery is managed (or at least attempted).

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Halley E. Froehlich @dochfroehlich.bsky.social · 13/01/2025

New addition to the office seafood decor: sick sushi. Featured art of THE @mcsiple.bsky.social, my daughter and Etsy 🖌️🖼️🐟

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