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nickdulvy.bsky.social
Nick Dulvy
@nickdulvy.bsky.social
4.6K followers 2.7K following 190 posts
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
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nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · Dec 5
New #GlobalSharkTrends study published in @science.org reveals #overfishing has more than halved shark & ray populations over the past 50-years causing widespread erosion of ecological function and exceptionally high extinction risk
👉Full article bit.ly/GlobalSharkTrends
🧵1/20
Scalloped hammerhead sharks (Sphyrna lewini) IUCN Critically Endangered © Masayuki Agawa_Ocean Image Bank
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Reposted by Nick Dulvy
ulaskimarta.bsky.social
Marta Ulaski @ulaskimarta.bsky.social · 8d
New co-author paper led by Dr. Jonathan Moore.
#fishsci #conservaton #bcpoli #salmon

We identify four syndromes of the combined local impacts of watershed pressures and climate change.

And identified several key management actions and policies that would help safeguard salmon watersheds.
jon-moore.bsky.social
Jonathan Moore @jon-moore.bsky.social · 14d
NEW PAPER!

A Safe Operating Space for Salmon Watersheds Under Rapid Climate Change - Fish and Fisheries - Wiley Online Library onlinelibrary.wiley.com/doi/10.1111/...
A Safe Operating Space for Salmon Watersheds Under Rapid Climate Change
Local watershed management can exacerbate or ameliorate oncoming climate risks to important aquatic ecosystems. Even as there is a global need to address climate change, local watershed stewardship c....
onlinelibrary.wiley.com
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Reposted by Nick Dulvy
earth2ocean.bsky.social
Earth to Ocean Research Group @earth2ocean.bsky.social · 5d
The E2O team making waves (and measuring fins) in Hamburg!
Great to see @sfubiosciences.bsky.social in action!
@sfuscience.bsky.social
amandasodysseys.bsky.social
Amanda Arnold 🦈 @amandasodysseys.bsky.social · 5d
Just wrapped up a great week measuring rays at the Museum der Natur Zoologie @leibnizlib.bsky.social in Hamburg 🇩🇪 for @rachhson.bsky.social’s PhD, over 135 specimens measured! 🦈✨ Next stop: Paris 🇫🇷, as our whirlwind tour through Europe’s ray collections continues
@nickdulvy.bsky.social
A selfie of four researchers in white lab coats smiling around a large ray specimen on a metal table. Measuring tapes are draped across the specimen (species: Dasyatis pastinaca) Amanda standing among shelves filled with glass jars containing preserved shark and ray specimens. Several large sawfish rostra hang on the back wall. Rachel examining rows of preserved specimens in glass jars inside a zoological collection room. Large sawfish rostra hang vertically in the background. Nick and Olivia removing Ray specimens preserved in large vats.
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Reposted by Nick Dulvy
eiui.bsky.social
Environmental Information: Use and Influence (Dalhousie Univ.) @eiui.bsky.social · Sep 8
Laboratory and field studies are often presented as “either-or approaches” with distinct advantages and challenges. Binning et al. argue for “working across the lab-field continuum” to conduct research that can “better inform #policy and practice” @conphysjournal.bsky.social doi.org/10.1093/conp...
Title, authors’ names, and abstract from a paper about the advantages and challenges of laboratory-based and field-based conservation physiology research for informing policy and practice
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Reposted by Nick Dulvy
whysharksmatter.bsky.social
David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 23d
Deep Ocean: Kingdom of the Coelacanth review — Attenborough peps up a very slow fish 🧪🌎🦑🐠
Deep Ocean: Kingdom of the Coelacanth review — Attenborough peps up a very slow fish
In this quiet, deeply immersive documentary, David Attenborough reveals the fascinating story of the coelacanth
www.thetimes.com
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nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · 1d
Guitarfish Tuesday in Paris

#MetabolicMorphology #SharksNearMe #DulvyLabGoesOutside #LoveMuseums #RaysNeedLoveToo #Paris #Brusselles #HamburgNaturalHistoryMuseum #NaturalHistoryMuseumDeParis
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Reposted by Nick Dulvy
petergausmann.bsky.social
Peter Gausmann @petergausmann.bsky.social · 11d
This finding is no coincidence. Scientific guided fisheries in the developed world with financial support for funding and overexploitation in the developing world and the Global South, where financial support for shark science is scarce and many coastal communities depend on artisanal fisheries 🦈🌊
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Reposted by Nick Dulvy
stephenbheard.bsky.social
Stephen Heard @stephenbheard.bsky.social · 2d
1. This specimen is very cool
2 Nick's hashtag game is VERY strong
nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · 2d
#Sawfish

#MetabolicMorphology #SharksNearMe #DulvyLabGoesOutside #LoveMuseums #RaysNeedLoveToo #Paris #Brusselles #HamburgNaturalHistoryMuseum #NaturalHistoryMuseumDeParis
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Reposted by Nick Dulvy
sharkcolin.bsky.social
Colin Simpfendorfer @sharkcolin.bsky.social · 8d
Read my review of John Long’s book The Secret History of Sharks in @currentbiology.bsky.social

A fascinating read about the deep history of sharks, the scientists who study them, and the adventures they have in the quest to learn more.

authors.elsevier.com/a/1luVG3QW8S...
authors.elsevier.com
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Reposted by Nick Dulvy
birdguides.bsky.social
BirdGuides @birdguides.bsky.social · 8d
Conservationists are calling for urgent global funding to save Samoa's Tooth-billed Pigeon, a Critically Endangered species often referred to as 'little dodo':
Funding urgently needed to save Samoa's 'little dodo' from extinction
Samoa's Critically Endangered Tooth-billed Pigeon, or 'little dodo', is facing imminent extinction due to deforestation, hunting and invasive species, reports BirdGuides. Conservationists warn that without urgent international funding for large-scale forest protection and monitoring, this unique and elusive bird could vanish forever. Tooth-billed Pigeon is one of the world's most evolutionarily distinct birds, yet remains poorly known, with no clear wild photographs and few recent sightings.
bit.ly
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Reposted by Nick Dulvy
currentbiology.bsky.social
Current Biology @currentbiology.bsky.social · 8d
If you are curious about flightless birds and the threats they face, here's a primer from our bird special issue:
www.cell.com/current-biol...
🦤
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Reposted by Nick Dulvy
cellpress.bsky.social
Cell Press @cellpress.bsky.social · 7d
"Deep-sea mining risks for sharks, rays, and chimaeras" www.cell.com/current-biol...

@seaprinceaaron.bsky.social & colleagues
@currentbiology.bsky.social
Schematic of two potential impact pathways (direct benthic impacts and midwater impacts) of deep-sea mining for polymetallic nodules, polymetallic sulphides, and cobalt-rich ferromanganese crusts.
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Reposted by Nick Dulvy
amandasodysseys.bsky.social
Amanda Arnold 🦈 @amandasodysseys.bsky.social · 5d
Just wrapped up a great week measuring rays at the Museum der Natur Zoologie @leibnizlib.bsky.social in Hamburg 🇩🇪 for @rachhson.bsky.social’s PhD, over 135 specimens measured! 🦈✨ Next stop: Paris 🇫🇷, as our whirlwind tour through Europe’s ray collections continues
@nickdulvy.bsky.social
A selfie of four researchers in white lab coats smiling around a large ray specimen on a metal table. Measuring tapes are draped across the specimen (species: Dasyatis pastinaca) Amanda standing among shelves filled with glass jars containing preserved shark and ray specimens. Several large sawfish rostra hang on the back wall. Rachel examining rows of preserved specimens in glass jars inside a zoological collection room. Large sawfish rostra hang vertically in the background. Nick and Olivia removing Ray specimens preserved in large vats.
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nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · 2d
Day 1 in Museum du Naturalle Histoire du Paris

#MetabolicMorphology #SharksNearMe #DulvyLabGoesOutside #LoveMuseums #RaysNeedLoveToo #Paris #Brusselles #HamburgNaturalHistoryMuseum #NaturalHistoryMuseumDeParis
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nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · 2d
#Sawfish

#MetabolicMorphology #SharksNearMe #DulvyLabGoesOutside #LoveMuseums #RaysNeedLoveToo #Paris #Brusselles #HamburgNaturalHistoryMuseum #NaturalHistoryMuseumDeParis
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nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · 2d
#Sawfish

#MetabolicMorphology #SharksNearMe #DulvyLabGoesOutside #LoveMuseums #RaysNeedLoveToo #Paris #Brusselles #HamburgNaturalHistoryMuseum #NaturalHistoryMuseumDeParis
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nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · 2d
#MetabolicMorphology #SharksNearMe #DulvyLabGoesOutside #LoveMuseums #RaysNeedLoveToo #Paris #Brusselles #HamburgNaturalHistoryMuseum #NaturalHistoryMuseumDeParis
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nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · 2d
#MetabolicMorphology #SharksNearMe #DulvyLabGoesOutside #LoveMuseums #RaysNeedLoveToo #Paris #Brusselles #HamburgNaturalHistoryMuseum #NaturalHistoryMuseumDeParis
5
Reposted by Nick Dulvy
nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · Dec 5
We developed a national RLI and found ecology is important. Countries with healthier Shark & Ray populations (larger RLI), have:
👉 greater shelf area (more habitat)
👉 cooler sea surface temperature
👉 greater primary production
This is consistent with greater extinction risk in the tropics
🧵16/20
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Reposted by Nick Dulvy
nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · Dec 5
Bright spots with some science-based fisheries management measure benefiting sharks & rays:
1. USA & Canada
2. NE Atlantic
3. S. Africa
4. Australia & New Zealand
#OceanOptimism
@nancyknowlton.bsky.social
@joshuacinner.bsky.social
www.science.org/doi/epdf/10....
🧵15/20
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nickdulvy.bsky.social
Nick Dulvy @nickdulvy.bsky.social · Dec 5
Researchers highlight troubling dark spots where shark & ray biodiversity is plummeting.
1. Japan–Taiwan
2. Indonesia to New Guinea
3. India & Bay of Bengal
4. Western Indian Ocean
5. SW Atlantic
6. Galapagos & SE Pacific
7. Gulf of California
🧵14/20
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infopointa.bsky.social
Infopoint #Klimawandel #Artensterben @infopointa.bsky.social · Aug 3
"Overfishing the largest species in nearshore and pelagic habitats risks loss of ecomorphotypes and a 5 to 22% erosion of functional diversity."

Ecological erosion and expanding extinction risk of sharks and rays
Dulvy @nickdulvy.bsky.social et al 2024
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Reposted by Nick Dulvy
helenyan.bsky.social
Helen Yan @helenyan.bsky.social · Aug 22
🚨New PhD paper out today in @natcomms.nature.com with @renatoamorais.bsky.social and Dave Bellwood! 🚨

Marine fishes exhibit extraordinary patterns of diversity, but how does this diversity relate to their productivity? 🐟🐠🐡

🌐
🦑🧪

🔗 nature.com/articles/s41...
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Reposted by Nick Dulvy
seaprinceaaron.bsky.social
Aaron B. Judah🔱 @seaprinceaaron.bsky.social · Sep 4
First first-author paper just got accepted!!!! New deep-sea shark, ray, and chimaera science inbound 👻🦈
Shark National Geographic GIF
ALT: Shark National Geographic GIF
media.tenor.com
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Reposted by Nick Dulvy
whysharksmatter.bsky.social
David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · Sep 13
Today is “drag and tag,” tagging sharks with drag queens while raising money for LGBQT+ youth organizations in Florida!

www.scientificamerican.com/article/drag...
Drag Queens Tag Sharks in Annual Florida Science Celebration
The annual “Drag ’n Tag” expedition takes place amid a wave of antitransgender legislation
www.scientificamerican.com
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Reposted by Nick Dulvy
sharkcolin.bsky.social
Colin Simpfendorfer @sharkcolin.bsky.social · 13d
New #sharkscience out in @currentbiology.bsky.social by @seaprinceaaron.bsky.social and colleagues.
Deep-sea mining risks for sharks, rays, and chimeras. A must read for this looming threat to many already threatened species.
www.cell.com/current-biol...
@iucnshark.bsky.social
Deep-sea mining risks for sharks, rays, and chimeras
Judah et al. identify 30 species of chondrichthyans that overlap with proposed deep-sea mining activities, nearly two-thirds of which are already threatened with extinction. Precautionary management o...
www.cell.com
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