Bryan P. Galligan SJ's Avatar

Bryan P. Galligan SJ

@galligansj

Jesuit scholastic working on marine fisheries ecology and management. Focused on coral reefs, food security/nutrition, and ecological justice/integral ecology. Views are my own. bryanpgalligan.github.io

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30.12.2023
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Latest posts by Bryan P. Galligan SJ @galligansj

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Drivers of Winter Flounder subpopulation catch rates in a fisheries-independent fixed-gear survey AbstractObjective. This study seeks to better understand the behavior and abundance of Winter Flounder Pseudopleuronectes americanus in subpopulations from

Excited to share my latest work! We found that winter flounder are not recovering, and may even be declining further despite protections from fishing. They also seem to be failing to adapt their behavior to environmental conditions. 🧪🦑🐟

OA link: academic.oup.com/tafs/advance...

01.07.2025 21:07 👍 6 🔁 2 💬 0 📌 0
Laudato Sí — Ignatian Young Adult Ministries

As we mourn the passing of Pope Francis, I am very conscious of his legacy and teachings on #IntegralEcology

I'll be offering a reflection in a podcast series marking the tenth anniversary of #LaudatoSi

Sign up here!
www.ignatianyoungadults.org/laudato-si

23.04.2025 13:25 👍 2 🔁 0 💬 0 📌 0
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Hundreds join El Paso bishop's protest against migrant mass deportation, asylum bans A March 24 prayer vigil at Sacred Heart Church in El Paso, which capped a rally and march that began in the city's downtown San Jacinto Plaza, drew hundreds of participants, including immigration advo...

Hundreds join El Paso bishops’ protest against migrant mass deportations, asylum bans

www.ncronline.org/news/hundred...

29.03.2025 17:33 👍 6 🔁 1 💬 0 📌 0

Fisheries Sustainability Eroded by Lost Catch Proportionality in a Coral Reef Seascape

🧪🦑🪸🐠

www.mdpi.com/2071-1050/17...

21.03.2025 10:56 👍 5 🔁 0 💬 0 📌 0
Low trophic small fish species as a sustainable and resilient aquatic food to improve food security and nutrition in sub-Saharan Africa

Disappointing to see this kind of overgeneralization still being proposed for policy guidance.

Targeting small fish does not always yield nutritional benefits and is a very damaging practice in some fisheries

🐟🌍🧪🦑

agris.fao.org/search/en/pr...

12.03.2025 12:10 👍 8 🔁 2 💬 1 📌 0
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Nutrition contributions of coral reef fisheries not enhanced by capture of small fish Recent policy recommendations have highlighted the nutritional benefits of fisheries that capture small finfish species. Small fish, particularly thos…

E.g., see our work in coral reef ecosystems

www.sciencedirect.com/science/arti...

12.03.2025 12:10 👍 0 🔁 0 💬 0 📌 0
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Emergent patterns of reef fish diversity correlate with coral assemblage shifts along the Great Barrier Reef - Nature Communications Coral reefs have been severely affected by anthropogenic stress. Using long term data from the Great Barrier Reef, this study found temporal changes in the latitudinal diversity gradient, and stronger...

Great Barrier Reef fish reveal that large-scale macroecological patterns have changed significantly 🐟🐠

We found that changes in latitudinal diversity gradient & rising species turnover were strongly correlated with shifts in coral composition

Out now in Nature Comms www.nature.com/articles/s41...

13.01.2025 10:55 👍 60 🔁 32 💬 4 📌 3
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Higher spatial resolution is not always better: evaluating satellite-sensed sea surface temperature products for a west Pacific coral reef system - Scientific Reports Scientific Reports - Higher spatial resolution is not always better: evaluating satellite-sensed sea surface temperature products for a west Pacific coral reef system

OK, I'm biased... but I'm a big fan of this new paper by @liamlachs.bsky.social, which emerged from his visit to UBC. The message: don't just grab the highest resolution data. You need to evaluate what is suitable for your specific location and research question.
www.nature.com/articles/s41...

08.01.2025 23:58 👍 24 🔁 7 💬 0 📌 1
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1/ Does climate activism work?

The short answer is yes, and there's been lots of research this year showing how

Here are some highlights
🧵

22.12.2024 19:24 👍 905 🔁 452 💬 34 📌 51
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New paper by several us as part of the #BlueFoods Assessment. We analyze nutrition-sensitive climate risk to micronutrients across production systems. By 2041–2060, 50 countries are projected to face high domestic climate risk for 2 or more micronutrients. Check it out: shorturl.at/OMfk9

20.12.2024 13:06 👍 13 🔁 6 💬 0 📌 0

Knowing several of the NOAA fisheries scientists who model and expertly endeavor to inform decision makers on the ~500 commercial stocks, I find it hard to believe the science is “ignored” as this article claims. They also site some of the older studies (c. 2012) which have been refuted or updated.

27.12.2024 23:57 👍 9 🔁 3 💬 2 📌 0
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Hope or Despair Revisited: Assessing Progress and New Challenges in Global Fisheries Marine fisheries are crucial to the economy, livelihood, food security and culture of coastal nations and communities, significantly contributing to the United Nations Sustainable Development Goals. ...

Cheung, Pauly, and Sumaila on the outlook of global fisheries

My $0.02:
✅ great identification of policy issues
❌ a fair amount of overstatement
❓I don’t think the IUCN Red List is the right tool for this question

🐟🌎🧪🦑

onlinelibrary.wiley.com/doi/full/10....

27.12.2024 16:34 👍 14 🔁 2 💬 0 📌 0
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The Discarded Women of Lebanon When hundreds of thousands of Lebanese fled Israeli bombing, they left behind the migrant women who worked for them. This is what happened to those women.

My friends and brother Jesuits Michael Petro and Dan Corrou have been doing some incredible work with migrant workers in Beirut through Jesuit Refugee Service. So good to see some of these stories lifted up by @nytimes.com

www.nytimes.com/card/2024/12...

23.12.2024 16:12 👍 4 🔁 1 💬 1 📌 1
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Finland downgrades MDPI and Frontiers – will others follow suit? Decision to downgrade 271 journals on quality and operating model concerns sparks debate

I was approached re: the Finnish decision to downgrade MDPI & Frontiers journals in 🇫🇮 rankings (THE article).

This decision was based on broad patterns, including in our recent study "The strain on scientific publishing"
(link: direct.mit.edu/qss/article/...)

A quick 🧵 1/n
#SciPub #AcademicChatter

20.12.2024 08:44 👍 130 🔁 67 💬 10 📌 8
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Nutrition-sensitive climate risk across food production systems - IOPscienceSearch Nutrition-sensitive climate risk across food production systems, Michelle Tigchelaar, Elizabeth Selig, Ali Sarhadi, Janaya Bruce, Edward Allison, Willow Battista, Jessica Fanzo, Kristin Kleisner, Zia Mehrabi, Rosamond L. Naylor, Josef Schmidhuber, Shakuntala Thilsted

An exciting early attempt to model aquatic and terrestrial food production together, predicting national climate vulnerability for specific micronutrients

iopscience.iop.org/article/10.1...

13.12.2024 15:59 👍 0 🔁 0 💬 0 📌 0

You can keep up with the whole LEC REEFS gang via our starter pack! 🐟🪸🎣🏝️

go.bsky.app/3m4FFzH

🦑🧪🌍

09.12.2024 10:40 👍 28 🔁 12 💬 2 📌 1
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Latitudinal gradients in herbivorous and detritivorous reef fish productivity - Reviews in Fish Biology and Fisheries The abundance of herbivorous fishes is known to vary strongly with latitude. However, our understanding of this pattern is largely based on the examination of nominally herbivorous fishes (i.e. both h...

Really interesting productivity gradients in Australian reef fishes. Detritivores dominate at tropical latitudes, and herbivores at warm temperate latitudes.

Would love to see if these gradients and their drivers (🌡️🌤️) are the same elsewhere.

🐟🧪🦑 #MarineEcology

link.springer.com/article/10.1...

05.12.2024 12:24 👍 9 🔁 2 💬 0 📌 0
Timeseries of global average air temperature back to the 1780s

Timeseries of global average air temperature back to the 1780s

How did global air temperatures vary before 1850?

We can now answer this from direct instrumental observations.

The new GloSAT dataset is under review!

Morice et al.: essd.copernicus.org/preprints/es...

05.12.2024 10:57 👍 273 🔁 84 💬 17 📌 5
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The IUCN says which animals may face extinction. But is it up to the job? Twenty-five scientists on conservation frontlines publish concerns that the red list of threatened species is outdated and unreliable

And while we're on the topic, see this report on our work in prep led by @rdpalacio.bsky.social on moving beyond the Red List for conservation priority setting

www.theguardian.com/environment/...

29.11.2024 15:31 👍 0 🔁 0 💬 0 📌 0

Great paper!

🎣 Fisheries science is sometimes skeptical of extinction risk b/c of the gap between overfishing and extinction risk thresholds

🚨 BUT this paper totally aligns with theory: small range size, low growth rate, and overfishing are a perfect storm for conservation risk

🦑🧪🌏 #MarineEcology

29.11.2024 15:31 👍 25 🔁 4 💬 1 📌 0
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Why Canada’s decision to lift a ban on cod fishing in Newfoundland after 32 years is so controversial – podcast Fisheries scientist Tyler Eddy explains the history of the North Atlantic cod moratorium, and why it was lifted in 2024. Listen to The Conversation Weekly podcast.

I was interviewed by @theconversation.bsky.social podcast about the reopening of the Newfoundland 🇨🇦 Northern cod fishery after the 32 year fishing moratorium

theconversation.com/why-canadas-...

@marineinstitute.bsky.social

26.11.2024 18:37 👍 21 🔁 7 💬 3 📌 2
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Micronutrient levels of global tropical reef fish communities differ from fisheries capture Read the free Plain Language Summary for this article on the Journal blog.

A lot of work on fisheries and nutrition (including my own) has looked at the nutrient content of fish catches. This paper finds important differences between the nutrients available in coral reef ecosystems and what is captured by fishers. 🦑🧪🐠

besjournals.onlinelibrary.wiley.com/doi/full/10....

23.11.2024 16:14 👍 19 🔁 4 💬 2 📌 0
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Gidday everyone, I hope you are well wherever you are. I've just landed here where the skies are blue. I'm keen to talk about #fisheries and #marineconservation & to hear your ideas about how we are going to save the planet #bemorescallop

19.11.2024 22:47 👍 151 🔁 29 💬 6 📌 3
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The productivity–stability trade-off in global food systems - Nature Ecology & Evolution A synthesis of empirical and theoretical literature shows the extent to which food production has homogenized and rewired food webs to increase productivity but with negative consequences for stabilit...

We’ve all heard about diversity-stability relationships, but what about productivity-stability?

I think this gets complicated in wild capture marine fisheries and it’s really hard to tell one story. Great paper, though!

www.nature.com/articles/s41...

20.11.2024 12:18 👍 0 🔁 0 💬 0 📌 0

This makes me so happy 😂

20.11.2024 12:14 👍 0 🔁 0 💬 0 📌 0
Conservation Social Science Conference - Human Dignity is on the Line: Small-Scale Fisheries, Blue Growth, and Human Rights in Lamu, Kenya

Conservation Social Science Conference - Human Dignity is on the Line: Small-Scale Fisheries, Blue Growth, and Human Rights in Lamu, Kenya

Anyone attending to SCB's Conservation Social Science Conference this week?? 🦑🐠

I'll be presenting a case of community-based judicial activism for fisheries in Lamu, Kenya, on Wednesday!

The book chapter it's based on was published earlier this year: link.springer.com/chapter/10.1...

17.11.2024 18:21 👍 5 🔁 0 💬 0 📌 0
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Meanwhile, scientists try to repopulate shorelines with the endangered black abalone... and SUCCEED.
www.npr.org/2024/11/07/n...
🧪🦑
cc @katharinehayhoe.com

08.11.2024 20:30 👍 373 🔁 73 💬 5 📌 4
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Interesting new paper on changes in Long-term carbon storage in shelf sea sediments by intensive bottom trawling. But I have some problems with the analyses and implications.
doi.org/10.1038/s415...

13.11.2024 11:34 👍 8 🔁 3 💬 3 📌 1
Cape Cod Has a Big Problem Simmering Just Below Its Surface
Cape Cod Has a Big Problem Simmering Just Below Its Surface "There’s going to be bad smells. There’s going to be fish kills. There’s going to be a lot of algae getting entangled in your boat, in your propeller, in eve...

A short documentary on Cape Cod's nutrient pollution issue published today in Scientific American and WBUR: youtu.be/tegBETX6MLw?...

12.02.2024 18:48 👍 5 🔁 1 💬 0 📌 0
Are we forgetting early observations of coral bleaching?

Are we forgetting early observations of coral bleaching? 🧪🦑🐠

Helpful take on 1982 mass bleaching on the Great Barrier Reef... also more evidence that threshold warming models are insufficient for predicting coral bleaching

www.int-res.com/abstracts/me...

12.11.2024 13:27 👍 12 🔁 0 💬 1 📌 0