@cfree14.bsky.social
Fisheries scientist interested in climate change and ecosystem-based management who runs too much and plays trombone too little | he/him
A timeline of closures and other restrictions to the West Coast commercial Dungeness crab fishing from 2015-2024.
The California Dungeness crab season is delayed yet again due to elevated levels of the domoic acid neurotoxin. The fishery has been heavily squeezed by climate change since 2015. wildlife.ca.gov/News/Archive...
24.10.2025 20:58 — 👍 2 🔁 0 💬 0 📌 0
I should have put this above but the estimated bycatch is 1-4% of the potential biological removal and marine mammal populations are recovering.
17.10.2025 16:22 — 👍 0 🔁 0 💬 0 📌 0
As a result, she mapped bycatch risk to identify areas of high risk that disproportionately contribute to bycatch. These were areas of relatively low fishery importance, suggesting that temporary closures could curb bycatch risk with small fishery impacts, should managing bycatch become necessary
17.10.2025 16:20 — 👍 0 🔁 0 💬 1 📌 0
Are there other management levers we can pull to find more efficient solutions? Yutian used random forest models to explore the drivers of bycatch risk and found that regulating spatial-temporal dynamics of the fishery could have more impact than regulating things like mesh size and soak time (4/X).
17.10.2025 16:18 — 👍 0 🔁 0 💬 1 📌 0
However, this progress has been made through management-induced reductions in fishing effort, which have had huge impacts on particaption and revenues. See below (3/X).
17.10.2025 16:15 — 👍 0 🔁 0 💬 1 📌 0
First, she combined observer and logbook data to estimate bycatch of six species over time. Bycatch, high and unsustainable in the 1980s and 1990s, has fallen precipitously.
17.10.2025 16:14 — 👍 0 🔁 0 💬 1 📌 0
My PhD student, Yutian Fang, just had her first chapter published! She shows that marine mammal & seabird bycatch has precipitously decreased in the California set gillnet fishery, but at high costs to fisheries participation and revenues. Read on for the evidence and more efficient solutions! (1/X)
17.10.2025 16:12 — 👍 0 🔁 0 💬 1 📌 0
Our new paper examines impact of historical warming on 521 freshwater fish populations. Warm water species benefitted while cool water species suffered. However, overfishing has a larger impact, indicating that fisheries mgmt can offset many negative climate impacts: www.science.org/doi/10.1126/...
06.10.2025 14:52 — 👍 0 🔁 0 💬 0 📌 0
I'm thrilled to share our new Fish & Fisheries paper synthesizing U.S. fisheries quota allocation policies and best practices for advancing their equity and fairness goals under climate change: t.co/JqjYR32qHc
30.06.2025 18:11 — 👍 9 🔁 6 💬 0 📌 0
