#SharkAwarenessDay Nearly 1/2 of numbfish species are threatened, yet most have <1% of their range in no-take MPAs. Explore species-level MPA coverage in our new paper: tinyurl.com/SharkRayMPA and app: tinyurl.com/sharkRayMpaExplorer @iucnshark.bsky.social #numbfishes #sharks #rays #conservation

Most shark and ray species have <1% of their range covered by no-take MPAs. New open access in @consletters.bsky.social: Sharks, Rays, & MPAs: a global assessment of MPA coverage in national waters across species ranges tinyurl.com/SharkRayMPA @nickdulvy.bsky.social @jaymatsushiba.bsky.social

A week from now I will be traveling across the world to Colombo, Sri Lanka for #SharksInternational2026 ! If you are interested in shark life histories and what drives population growth rates, come see my presentation @sharks-int.bsky.social #SI2026

I’m headed to Sri Lanka in 1 week for #SharksInternational2026! Excited to see everyone’s work! If you’re interested in species’ MPA coverage, international reporting of no-take areas, or a new tool for exploring coverage for your study species/region, come check out my talk @sharks-int.bsky.social

If you: - are part of the ray fan club, - wonder why I post from a museum collection every few months, - are interested in the connections between morphology, ecology, and biodiversity, And are going to #SharksInternational2026, check out my talk on Monday, 4 May at 12:40! @sharks-int.bsky.social

Happy International Day of Women and Girls in Science! Grateful for the mentors, collaborators, and friends who make science stronger every day. #WomeninSTEM @rachhson.bsky.social @sfubiosciences.bsky.social @sfuscience.bsky.social

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.

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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

Successfully wrapped up our third and final week measuring rays in Europe at the Natural History Museum in London 🇬🇧 huge thank you to @nhm-london.bsky.social for hosting, and thank you @amandasodysseys.bsky.social and @nickdulvy.bsky.social for helping me measure 309 rays representing 123 species!

A bit late, but we’ve (@rachhson.bsky.social @nickdulvy.bsky.social) wrapped up our second week measuring rays across Europe. Goodbye Paris and thank you to the teams at @mnhn.fr who made it possible! 🇫🇷✨on to London 🇬🇧! @earth2ocean.bsky.social #labwork #mobulamonday #scienceinaction #womeninstem

Day 1 in Museum du Naturalle Histoire du Paris #MetabolicMorphology #SharksNearMe #DulvyLabGoesOutside #LoveMuseums #RaysNeedLoveToo #Paris #Brusselles #HamburgNaturalHistoryMuseum #NaturalHistoryMuseumDeParis

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

Always glad to celebrate my sisters in STEM! Happy International Day of Women & Girls in Science 👩‍🔬🦈- Grateful for the incredible women who have supported me and for all the amazing women scientists blazing trails and making a difference every day. #WomenInScience #WomenInSTEM @rachhson.bsky.social

Dive into the exciting work of the Earth to Ocean Research Group! Follow our brilliant students, research assistants, lab managers, postdocs, and faculty as they explore, discover, and make waves in science. 🌊✨ go.bsky.app/153jnvd

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

Was my great pleasure to spend two weeks here at the South African Institute for Aquatic Biodiversity measuring #metabolic #morpholgy traits of rays w/ @earth2ocean.bsky.social @sfuscience.bsky.social grads. Here is @jaymatsushiba.bsky.social to give you a sense of the size of the collection...

🌊👋 Hi Everyone! thought I would take a second to introduce myself! I'm Amanda Arnold, a PhD student with @nickdulvy.bsky.social in the @earth2ocean.bsky.social research group at Simon Fraser University in Vancouver, Canada.

I've made a starter pack of scientists who study sharks and rays, and environmental advocates who work to protect them. Follow these fine folks, and let me know if I missed anyone! 🧪🦑🌎 go.bsky.app/Q1x1gJB

Phew! after 2 weeks working @NRF_SAIAB its a wrap. We measured 25+ #MetabolicMorphology traits from 43 sharks & 240 ray specimens, spanning 60 species, from endemic catsharks, skates & electric rays to pelagic and deepsea sharks Thanks to @SFUResearch & @NSERC_CRSNG 🧪🦈🌎

What a great weekend for E2O! The Palen & Côté labs made waves at #PEEC2024 at the Bamfield Marine Sciences Centre. Meanwhile, the Dulvy lab shared insights at #NEPSSVI at the Seattle Aquarium. From local invasive species to global protected areas, we are passionate about sharing our science! 🌊🦈

Happy #International_Womens_Day to these amazing scientists who provide me with *constant* support in the lab @rachhson.bsky.social @hannahvwatkins.bsky.social

New analysis on #SharksintheDark funded by @SharkRayFund shows one in seven deepwater sharks and rays are threatened with extinction, more than twice the number reported a decade ago. 🦑🌍🐟 #GlobalSharkTrends bit.ly/SharksInTheD...

A global fishing prohibition below 800 m would provide 30% vertical refuge for 30% of threatened deepwater sharks and rays. 🦑🌍🐟   #SharksintheDark #GlobalSharkTrends #OceanOptimism bit.ly/SharksInTheD... www.science.org/doi/10.1126/...

Super excited to welcome new PhD student Rachel Aitchison to the Earth to Ocean Research group at Simon Fraser University. She's working on "Metabolic morphology of rays"