Nick Dulvy
@nickdulvy.bsky.social
I lift the lid on the oceans & census the life hidden beneath by combining Darwin’s toolbox–of natural history field guides, thermometer, microscope, and dissection kit–with big-data approaches @earth2ocean.bsky.social
Pinned
New paper out today in @natrevbiodiv.nature.com by the #GlobalSharkTrends team: Bending back the curve of shark & ray biodiversity loss;
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
This is like that trap-cam shot of the chihuahua hanging with the wolf pack. This is probably the most mind expanding result of the decade
And to be fair, we had a hint about this from a previous paper, but it was for a single animal and so I, like many others, dismissed it as a one-off.
"The critically endangered bowmouth guitarfish (Rhina ancylostoma) in the open ocean with an associated tuna school"
dx.doi.org/10.1007/s125...
"The critically endangered bowmouth guitarfish (Rhina ancylostoma) in the open ocean with an associated tuna school"
dx.doi.org/10.1007/s125...
The critically endangered bowmouth guitarfish (Rhina ancylostoma) in the open ocean with an associated tuna school - Marine Biodiversity
Marine Biodiversity -
dx.doi.org
February 2, 2026 at 4:23 AM
This is like that trap-cam shot of the chihuahua hanging with the wolf pack. This is probably the most mind expanding result of the decade
Reposted by Nick Dulvy
Check out our new paper on one of the most quantified marine biodiversity crises—with proven pathways to recovery.
Découvrez notre nouvel article sur l’une des crises de la biodiversité marine la plus nettement quantifiée—avec des solutions de rétablissement identifiées.
Découvrez notre nouvel article sur l’une des crises de la biodiversité marine la plus nettement quantifiée—avec des solutions de rétablissement identifiées.
New paper out today in @natrevbiodiv.nature.com by the #GlobalSharkTrends team: Bending back the curve of shark & ray biodiversity loss;
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
January 26, 2026 at 9:32 AM
Check out our new paper on one of the most quantified marine biodiversity crises—with proven pathways to recovery.
Découvrez notre nouvel article sur l’une des crises de la biodiversité marine la plus nettement quantifiée—avec des solutions de rétablissement identifiées.
Découvrez notre nouvel article sur l’une des crises de la biodiversité marine la plus nettement quantifiée—avec des solutions de rétablissement identifiées.
Reposted by Nick Dulvy
In just three days thousands of Chinese fishing boats formed a line between China and Japan
www.nytimes.com/interactive/...
www.nytimes.com/interactive/...
January 16, 2026 at 9:20 PM
In just three days thousands of Chinese fishing boats formed a line between China and Japan
www.nytimes.com/interactive/...
www.nytimes.com/interactive/...
Reposted by Nick Dulvy
Remember studying plate tectonics back in middle school? It’s time for a refresher!
Explore plate boundaries with an interactive map in our Ocean Learning Hub!
Start exploring: go.whoi.edu/Plate_Boundaries
Explore plate boundaries with an interactive map in our Ocean Learning Hub!
Start exploring: go.whoi.edu/Plate_Boundaries
January 19, 2026 at 7:59 PM
Remember studying plate tectonics back in middle school? It’s time for a refresher!
Explore plate boundaries with an interactive map in our Ocean Learning Hub!
Start exploring: go.whoi.edu/Plate_Boundaries
Explore plate boundaries with an interactive map in our Ocean Learning Hub!
Start exploring: go.whoi.edu/Plate_Boundaries
Reposted by Nick Dulvy
Sorting out the history of whaling pressure on five populations of blue whales in the Indian Ocean and SW Pacific. So many years of work went into this monumental collaboration with many many coauthors. So pleased to see this paper finally published.
doi.org/10.1111/mms....
doi.org/10.1111/mms....
Published! Our huge effort to obtain catch series for each of five overlapping populations of pygmy blue whales. Big collaboration with 30+ coauthors using spatial patterns of blue whale song (unique to each population) to figure out where each resides 1/n
March 19, 2025 at 5:57 PM
Sorting out the history of whaling pressure on five populations of blue whales in the Indian Ocean and SW Pacific. So many years of work went into this monumental collaboration with many many coauthors. So pleased to see this paper finally published.
doi.org/10.1111/mms....
doi.org/10.1111/mms....
Reposted by Nick Dulvy
Healthy and sustainable fisheries have lower carbon emissions and fuel use, because fish are more abundant and easier to catch with less effort. Rebuilding fisheries and ensuring that fleet sizes are appropriate for catch level, are keys for CO2 reduction
By Hilborn et al.
doi.org/10.1111/faf....
By Hilborn et al.
doi.org/10.1111/faf....
doi.org
January 20, 2026 at 11:07 PM
Healthy and sustainable fisheries have lower carbon emissions and fuel use, because fish are more abundant and easier to catch with less effort. Rebuilding fisheries and ensuring that fleet sizes are appropriate for catch level, are keys for CO2 reduction
By Hilborn et al.
doi.org/10.1111/faf....
By Hilborn et al.
doi.org/10.1111/faf....
Reposted by Nick Dulvy
NOAA Fisheries jobs are to be posted soon. New questions are now required to be answered by all applicants, see below
www.fisheries.noaa.gov/careers-more...
www.fisheries.noaa.gov/careers-more...
January 22, 2026 at 7:02 AM
NOAA Fisheries jobs are to be posted soon. New questions are now required to be answered by all applicants, see below
www.fisheries.noaa.gov/careers-more...
www.fisheries.noaa.gov/careers-more...
Reposted by Nick Dulvy
🏢🌳 Business and biodiversity are linked through both dependencies and impacts.
The upcoming @IPBES.net #BizBiodiversity Assessment will strengthen the knowledge base to understand and account for these dependencies.
The upcoming @IPBES.net #BizBiodiversity Assessment will strengthen the knowledge base to understand and account for these dependencies.
January 21, 2026 at 3:42 PM
🏢🌳 Business and biodiversity are linked through both dependencies and impacts.
The upcoming @IPBES.net #BizBiodiversity Assessment will strengthen the knowledge base to understand and account for these dependencies.
The upcoming @IPBES.net #BizBiodiversity Assessment will strengthen the knowledge base to understand and account for these dependencies.
Reposted by Nick Dulvy
Well... can't help it, sharks! 🦈
🧪🌊
🧪🌊
New paper out today in @natrevbiodiv.nature.com by the #GlobalSharkTrends team: Bending back the curve of shark & ray biodiversity loss;
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
January 22, 2026 at 5:03 PM
Well... can't help it, sharks! 🦈
🧪🌊
🧪🌊
See out thread summarizing the paper here: bsky.app/profile/nick...
New online! Bending back the curve of shark and ray biodiversity loss
Bending back the curve of shark and ray biodiversity loss
Nature Reviews Biodiversity, Published online: 22 January 2026; doi:10.1038/s44358-025-00120-2Global shark and ray populations have declined sharply, driven by expanding fisheries and inequitable gaps in catch, trade and distribution data. This Review assesses global status, highlights drivers of decline, and outlines the regulatory, market-based and conservation actions needed to reduce mortality and reverse shark and ray biodiversity loss.
dlvr.it
January 22, 2026 at 4:48 PM
See out thread summarizing the paper here: bsky.app/profile/nick...
Reposted by Nick Dulvy
Our new paper is online! We found that 1) today's shark & ray diversity was already reached ~100Ma; 2) that the K/Pg extinction was not catastrophic; 3) that the max diversity was reached ~50Ma; and 4) that today's diversity is depleted compared to the past.
www.cell.com/current-biol...
www.cell.com/current-biol...
Revealing the hidden patterns of shark and ray diversity over the past 145 million years
Gardiner et al. reconstruct the diversity of sharks and rays across the past 145 million
years using deep learning and an extensive dataset. Their results unveil previously
hidden patterns, including ...
www.cell.com
January 22, 2026 at 4:41 PM
Our new paper is online! We found that 1) today's shark & ray diversity was already reached ~100Ma; 2) that the K/Pg extinction was not catastrophic; 3) that the max diversity was reached ~50Ma; and 4) that today's diversity is depleted compared to the past.
www.cell.com/current-biol...
www.cell.com/current-biol...
Reposted by Nick Dulvy
Great 🧵on 🦈 trends by @nickdulvy.bsky.social 👇🏼
New paper out today in @natrevbiodiv.nature.com by the #GlobalSharkTrends team: Bending back the curve of shark & ray biodiversity loss;
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
January 22, 2026 at 5:48 AM
Great 🧵on 🦈 trends by @nickdulvy.bsky.social 👇🏼
New paper out today in @natrevbiodiv.nature.com by the #GlobalSharkTrends team: Bending back the curve of shark & ray biodiversity loss;
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
January 22, 2026 at 3:35 AM
New paper out today in @natrevbiodiv.nature.com by the #GlobalSharkTrends team: Bending back the curve of shark & ray biodiversity loss;
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
Read the paper here: rdcu.be/eZ9n9
@sfu.ca
@sfubiosciences.bsky.social
@earth2ocean.bsky.social
Reposted by Nick Dulvy
A spectacle to behold, in the shallows, hugging this island, we see broad cowtail rays and mangrove whiprays - and looking with a close eye, few juvenile blacktip reef sharks weave between the rays.
Footage by Sebastian Staines.
#saveourseasfoundation #sharksandrays #conservation #videography
Footage by Sebastian Staines.
#saveourseasfoundation #sharksandrays #conservation #videography
February 28, 2025 at 12:14 PM
A spectacle to behold, in the shallows, hugging this island, we see broad cowtail rays and mangrove whiprays - and looking with a close eye, few juvenile blacktip reef sharks weave between the rays.
Footage by Sebastian Staines.
#saveourseasfoundation #sharksandrays #conservation #videography
Footage by Sebastian Staines.
#saveourseasfoundation #sharksandrays #conservation #videography
Reposted by Nick Dulvy
What a year!
From community-led conservation across Africa to treaties protecting the high seas, 2025 reminded us that progress is possible when people, policy, and passion align.
The last CO Round-Up of the year brings together 12 powerful wins: buff.ly/O6R5LsF
#ConservationOptimism
From community-led conservation across Africa to treaties protecting the high seas, 2025 reminded us that progress is possible when people, policy, and passion align.
The last CO Round-Up of the year brings together 12 powerful wins: buff.ly/O6R5LsF
#ConservationOptimism
December 31, 2025 at 7:23 AM
What a year!
From community-led conservation across Africa to treaties protecting the high seas, 2025 reminded us that progress is possible when people, policy, and passion align.
The last CO Round-Up of the year brings together 12 powerful wins: buff.ly/O6R5LsF
#ConservationOptimism
From community-led conservation across Africa to treaties protecting the high seas, 2025 reminded us that progress is possible when people, policy, and passion align.
The last CO Round-Up of the year brings together 12 powerful wins: buff.ly/O6R5LsF
#ConservationOptimism
Reposted by Nick Dulvy
Human pressures reshape biodiversity, but not always in expected ways. No global biotic homogenization found. Impacts vary by threat, taxa, and scale. #LandUse #Overexploitation #Pollution #ClimateChange #Invasives
👉Conservation must get specific
#KnowYourPressure #TailorYourStrategy #BendTheCurve
👉Conservation must get specific
#KnowYourPressure #TailorYourStrategy #BendTheCurve
The global human impact on biodiversity - Nature
Key measures of biodiversity were quantified and found to be affected by human pressures that shifted community composition and decreased local diversity across terrestrial, freshwater and marine ecos...
www.nature.com
March 31, 2025 at 9:17 AM
Human pressures reshape biodiversity, but not always in expected ways. No global biotic homogenization found. Impacts vary by threat, taxa, and scale. #LandUse #Overexploitation #Pollution #ClimateChange #Invasives
👉Conservation must get specific
#KnowYourPressure #TailorYourStrategy #BendTheCurve
👉Conservation must get specific
#KnowYourPressure #TailorYourStrategy #BendTheCurve
Reposted by Nick Dulvy
@sfuscience.bsky.social is proud to announce the 2025 recipients of the Excellence in Science Public Engagement and Outreach Awards. These annual awards recognize faculty, staff and students who volunteer their time to communicating scientific research to the public and policymakers. 🔬
SFU Science Recognizes the 2025 Recipients of the Excellence in Science Public Engagement and Outreach Awards
www.sfu.ca
December 4, 2025 at 6:29 PM
@sfuscience.bsky.social is proud to announce the 2025 recipients of the Excellence in Science Public Engagement and Outreach Awards. These annual awards recognize faculty, staff and students who volunteer their time to communicating scientific research to the public and policymakers. 🔬
Reposted by Nick Dulvy
Before we say goodbye to 2025, take a look back at some of the more memorable SFU stories and research that showcased innovation and excellence.
What was your favourite moment of 2025?
What was your favourite moment of 2025?
The top SFU News stories of 2025
Before we say goodbye to 2025 and look towards the sunlit plains of the New Year, take a look back at the more memorable stories and research that showcased innovation, excellence, community and belon...
www.sfu.ca
December 17, 2025 at 6:59 PM
Before we say goodbye to 2025, take a look back at some of the more memorable SFU stories and research that showcased innovation and excellence.
What was your favourite moment of 2025?
What was your favourite moment of 2025?
Reposted by Nick Dulvy
Big news for Cambridge Prisms: Extinction! 🎉
We’re now indexed in ESCI and will be announcing our first Journal Impact Factor this summer.
A huge milestone for the journal and the extinction research community. Learn more and read the latest articles here: https://cup.org/4bsn3vl
We’re now indexed in ESCI and will be announcing our first Journal Impact Factor this summer.
A huge milestone for the journal and the extinction research community. Learn more and read the latest articles here: https://cup.org/4bsn3vl
January 12, 2026 at 3:10 PM
Big news for Cambridge Prisms: Extinction! 🎉
We’re now indexed in ESCI and will be announcing our first Journal Impact Factor this summer.
A huge milestone for the journal and the extinction research community. Learn more and read the latest articles here: https://cup.org/4bsn3vl
We’re now indexed in ESCI and will be announcing our first Journal Impact Factor this summer.
A huge milestone for the journal and the extinction research community. Learn more and read the latest articles here: https://cup.org/4bsn3vl
I got a truly unexpected and wonderful surprise in the post today Gonzo Ichthyology by Milton Love & Jessica Eggers of Really. Ig Press (read inside cover which sets stage for a wonderfully unhinged and thoughtful book on 🐠 🐟)
January 13, 2026 at 12:18 AM
I got a truly unexpected and wonderful surprise in the post today Gonzo Ichthyology by Milton Love & Jessica Eggers of Really. Ig Press (read inside cover which sets stage for a wonderfully unhinged and thoughtful book on 🐠 🐟)
Reposted by Nick Dulvy
Duarte and colleagues review the shallow-water tropical coral reef crisis and call for synergistic efforts to conserve and restore these essential ecosystems. @carlosduartephd.bsky.social
Link: https://bit.ly/48LzJxN
Readcube: https://bit.ly/4iUVpfF
Link: https://bit.ly/48LzJxN
Readcube: https://bit.ly/4iUVpfF
Layering solutions to conserve tropical coral reefs in crisis - Nature Reviews Biodiversity
Cumulative pressures are driving tropical coral reefs, pivotal components of the ocean social ecological system, to functional collapse. This Review summarizes their trends and threats, before detailing a strategy to avoid the functional collapse of coral reefs by deploying a global action plan layering a broad range of science-based interventions.
bit.ly
December 11, 2025 at 1:28 PM
Duarte and colleagues review the shallow-water tropical coral reef crisis and call for synergistic efforts to conserve and restore these essential ecosystems. @carlosduartephd.bsky.social
Link: https://bit.ly/48LzJxN
Readcube: https://bit.ly/4iUVpfF
Link: https://bit.ly/48LzJxN
Readcube: https://bit.ly/4iUVpfF
Reposted by Nick Dulvy
Despite being top predators, sharks are highly vulnerable. 🦈
Their presence is also an important indicator of good marine biodiversity in the area, that's why researchers in Belgium are monitoring it!
Read more👇
bit.ly/4rXQyOJ
@vliz.be @lifewatchvliz.bsky.social @lifewatchbelgium.bsky.social
Their presence is also an important indicator of good marine biodiversity in the area, that's why researchers in Belgium are monitoring it!
Read more👇
bit.ly/4rXQyOJ
@vliz.be @lifewatchvliz.bsky.social @lifewatchbelgium.bsky.social
December 15, 2025 at 4:19 PM
Despite being top predators, sharks are highly vulnerable. 🦈
Their presence is also an important indicator of good marine biodiversity in the area, that's why researchers in Belgium are monitoring it!
Read more👇
bit.ly/4rXQyOJ
@vliz.be @lifewatchvliz.bsky.social @lifewatchbelgium.bsky.social
Their presence is also an important indicator of good marine biodiversity in the area, that's why researchers in Belgium are monitoring it!
Read more👇
bit.ly/4rXQyOJ
@vliz.be @lifewatchvliz.bsky.social @lifewatchbelgium.bsky.social
Reposted by Nick Dulvy
This makes me happy. Exactly 30 years ago I was mid way through a brilliant year in the South of France thanks to Erasmus. So glad it’s back on the table for today’s kids. www.theguardian.com/world/2025/d...
UK to rejoin EU’s Erasmus student exchange programme
Exclusive: British students will be able to participate in EU-wide scheme from January 2027, sources say
www.theguardian.com
December 16, 2025 at 8:32 PM
This makes me happy. Exactly 30 years ago I was mid way through a brilliant year in the South of France thanks to Erasmus. So glad it’s back on the table for today’s kids. www.theguardian.com/world/2025/d...
Reposted by Nick Dulvy
The 2024–25 IMOS Annual Highlights are now out, showcasing key achievements from across our program and community 🌊
🔗 bit.ly/3MkLMKQ
#NCRISImpact
🔗 bit.ly/3MkLMKQ
#NCRISImpact
November 25, 2025 at 1:37 AM
The 2024–25 IMOS Annual Highlights are now out, showcasing key achievements from across our program and community 🌊
🔗 bit.ly/3MkLMKQ
#NCRISImpact
🔗 bit.ly/3MkLMKQ
#NCRISImpact