Bryan P. Galligan SJ
@galligansj.bsky.social
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
bryanpgalligan.github.io
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...
OA link: academic.oup.com/tafs/advance...
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
academic.oup.com
July 1, 2025 at 9:07 PM
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...
OA link: academic.oup.com/tafs/advance...
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
I'll be offering a reflection in a podcast series marking the tenth anniversary of #LaudatoSi
Sign up here!
www.ignatianyoungadults.org/laudato-si
Laudato Sí — Ignatian Young Adult Ministries
www.ignatianyoungadults.org
April 23, 2025 at 1:25 PM
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
I'll be offering a reflection in a podcast series marking the tenth anniversary of #LaudatoSi
Sign up here!
www.ignatianyoungadults.org/laudato-si
Hundreds join El Paso bishops’ protest against migrant mass deportations, asylum bans
www.ncronline.org/news/hundred...
www.ncronline.org/news/hundred...
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...
www.ncronline.org
March 29, 2025 at 5:33 PM
Hundreds join El Paso bishops’ protest against migrant mass deportations, asylum bans
www.ncronline.org/news/hundred...
www.ncronline.org/news/hundred...
Fisheries Sustainability Eroded by Lost Catch Proportionality in a Coral Reef Seascape
🧪🦑🪸🐠
www.mdpi.com/2071-1050/17...
🧪🦑🪸🐠
www.mdpi.com/2071-1050/17...
www.mdpi.com
March 21, 2025 at 10:56 AM
Fisheries Sustainability Eroded by Lost Catch Proportionality in a Coral Reef Seascape
🧪🦑🪸🐠
www.mdpi.com/2071-1050/17...
🧪🦑🪸🐠
www.mdpi.com/2071-1050/17...
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...
Targeting small fish does not always yield nutritional benefits and is a very damaging practice in some fisheries
🐟🌍🧪🦑
agris.fao.org/search/en/pr...
Low trophic small fish species as a sustainable and resilient aquatic food to improve food security and nutrition in sub-Saharan Africa
agris.fao.org
March 12, 2025 at 12:10 PM
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...
Targeting small fish does not always yield nutritional benefits and is a very damaging practice in some fisheries
🐟🌍🧪🦑
agris.fao.org/search/en/pr...
Reposted by Bryan P. Galligan SJ
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...
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...
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...
www.nature.com
January 13, 2025 at 10:55 AM
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...
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...
Reposted by Bryan P. Galligan SJ
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...
www.nature.com/articles/s41...
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
www.nature.com
January 8, 2025 at 11:58 PM
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...
www.nature.com/articles/s41...
Reposted by Bryan P. Galligan SJ
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
🧵
The short answer is yes, and there's been lots of research this year showing how
Here are some highlights
🧵
December 22, 2024 at 7:24 PM
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
🧵
The short answer is yes, and there's been lots of research this year showing how
Here are some highlights
🧵
Reposted by Bryan P. Galligan SJ
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
December 20, 2024 at 1:06 PM
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
Reposted by Bryan P. Galligan SJ
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.
A big #Alaska long read on the state of the Bering Sea and the life in it, one that takes seriously that trawling might be a separate—and compounding—issue to climate change. Plus it links #oceans to #rivers.
pocket.co/share/2c1905...
pocket.co/share/2c1905...
The Industry Behind Your Filet-O-Fish Is Destroying Alaska’s Oceans and Rivers
While the deep-pocketed trawling industry rakes in millions, indigenous Alaskans, small-scale fisheries, and the state’s ecosystem are being left out to dry. With a sizzle of grease, a McDonald’s File...
pocket.co
December 27, 2024 at 11:57 PM
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.
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....
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....
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. ...
onlinelibrary.wiley.com
December 27, 2024 at 4:34 PM
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....
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....
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...
www.nytimes.com/card/2024/12...
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.
www.nytimes.com
December 23, 2024 at 4:12 PM
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...
www.nytimes.com/card/2024/12...
Reposted by Bryan P. Galligan SJ
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
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
Finland downgrades MDPI and Frontiers – will others follow suit?
Decision to downgrade 271 journals on quality and operating model concerns sparks debate
www.timeshighereducation.com
December 20, 2024 at 8:45 AM
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
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
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...
iopscience.iop.org/article/10.1...
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
iopscience.iop.org
December 13, 2024 at 3:59 PM
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...
iopscience.iop.org/article/10.1...
Reposted by Bryan P. Galligan SJ
December 9, 2024 at 10:40 AM
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...
Would love to see if these gradients and their drivers (🌡️🌤️) are the same elsewhere.
🐟🧪🦑 #MarineEcology
link.springer.com/article/10.1...
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...
link.springer.com
December 5, 2024 at 12:24 PM
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...
Would love to see if these gradients and their drivers (🌡️🌤️) are the same elsewhere.
🐟🧪🦑 #MarineEcology
link.springer.com/article/10.1...
Reposted by Bryan P. Galligan SJ
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...
We can now answer this from direct instrumental observations.
The new GloSAT dataset is under review!
Morice et al.: essd.copernicus.org/preprints/es...
December 5, 2024 at 10:57 AM
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...
We can now answer this from direct instrumental observations.
The new GloSAT dataset is under review!
Morice et al.: essd.copernicus.org/preprints/es...
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
🎣 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
Updating the #IUCN status of marine fish using AI shows that x5 more species are threatened with extinction than previously thought!
see our study in Plos Biol with @nloiseau.bsky.social
👉 doi.org/10.1371/jour...
🔑 This silent extinction affects 12,7% of marine fishes (1337 species) !
🧪🌐🌍🦤🦑
see our study in Plos Biol with @nloiseau.bsky.social
👉 doi.org/10.1371/jour...
🔑 This silent extinction affects 12,7% of marine fishes (1337 species) !
🧪🌐🌍🦤🦑
November 29, 2024 at 3:31 PM
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
🎣 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
Reposted by Bryan P. Galligan SJ
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
theconversation.com/why-canadas-...
@marineinstitute.bsky.social
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.
theconversation.com
November 26, 2024 at 6:36 PM
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
theconversation.com/why-canadas-...
@marineinstitute.bsky.social
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....
besjournals.onlinelibrary.wiley.com/doi/full/10....
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.
besjournals.onlinelibrary.wiley.com
November 23, 2024 at 4:14 PM
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....
besjournals.onlinelibrary.wiley.com/doi/full/10....
Reposted by Bryan P. Galligan SJ
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
November 19, 2024 at 10:51 PM
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
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...
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...
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...
www.nature.com
November 20, 2024 at 12:18 PM
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...
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...
This makes me so happy 😂
November 20, 2024 at 12:14 PM
This makes me so happy 😂
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...
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...
November 17, 2024 at 6:21 PM
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...
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...
Reposted by Bryan P. Galligan SJ
Meanwhile, scientists try to repopulate shorelines with the endangered black abalone... and SUCCEED.
www.npr.org/2024/11/07/n...
🧪🦑
cc @katharinehayhoe.com
www.npr.org/2024/11/07/n...
🧪🦑
cc @katharinehayhoe.com
November 8, 2024 at 8:30 PM
Meanwhile, scientists try to repopulate shorelines with the endangered black abalone... and SUCCEED.
www.npr.org/2024/11/07/n...
🧪🦑
cc @katharinehayhoe.com
www.npr.org/2024/11/07/n...
🧪🦑
cc @katharinehayhoe.com