Colin Simpfendorfer

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...

Recently, 124 Important Shark and Ray Areas (ISRAs) were delineated for the European Atlantic 🦈
This effort had data contributions from 214 researchers, including ETN members! Many of these ISRAs were partially/ompletely supported with telemetry data, underscoring the importance of this information.

Calling all marine & freshwater sciences students 📣

@marinefreshwater.bsky.social has a new #StudentPrize!

The first winner will be announced in 2027 to allow time for submissions and nominations.

More details:
www.publish.csiro.au/mf/forauthor...

#MarineFreshwaterRes

In the Philippines, there are 10 designated ISRAs.
Swipe left to learn more about the shark and ray species in these individual sites.

© Marine Wildlife Watch of the Philippines

#shark #ray #chimaera #ISRA #ISRAlOPH #SharksPH #ConservePHsharks #sharkada

"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

New #sharkscience from Julia Constance at @charlesdarwinuni.bsky.social

Acoustic telemetry provides mortality estimates for threatened river sharks in the Northern Territory, Australia.

Neonates experience very high rates of natural mortality.

rdcu.be/eJb04

@iucnshark.bsky.social

And for more on #shark #conservation, check out this well-aged review from @sharkcolin.bsky.social and colleagues

www.cell.com/current-biol...

OPEN CALL | Session at Sharks International 2026 (SI2026) 🦈

Abstract submissions for SI2026 are officially open! The IUCN SSC Shark Specialist Group is thrilled to host the session:
“Leveraging Important Shark and Ray Areas (ISRAs) for Policy Action.”

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...

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

OPEN CALL | Session at Sharks International 2026 (SI2026) 🦈

Abstract submissions for SI2026 are now open! The IUCN SSC Shark Specialist Group is excited to host the session:
“Advancing Area-Based Management for Chondrichthyans: Challenges and Opportunities.”

JOB OPPORTUNITY: Lecturer in Marine Biology and Scientific Diving (University of Plymouth)

www.jobs.ac.uk/job/DOS637/l...

#jobs #lecturer #scientificdiving #plymouth #coralreefs #university #marinescience #marinebiology #marineecology #jobopportunity

Rob Lennox and I are hiring a PhD student based out of Dalhousie to study the movement ecology of imperilled Atlantic mackerel starting in January 2026! In collaboration with DFO and @oceantracking.bsky.social Please share widely!!!

Rising marine extremes demand rapid response. IMOS is using ocean gliders & a national science network to deliver near real-time insights on heatwaves, floods & storms -knowledge to protect ecosystems, fisheries & coastal communities.

🔗 bit.ly/3KmJrhv

#NCRISimpact

A landmark scientific workshop has identified 124 Important Shark and Ray Areas (ISRAs) across the European Atlantic, providing the first comprehensive map of critical habitats for threatened species such as Basking Shark, Tope, Spiny Dogfish, Sicklefin Devil Ray, and Angelshark.

New paper introducing the term of SUPER HABITAT for sharks in which all critical activities (resting, feeding, mating & giving birth) occurs.
🦈🌴❤️🍽️ 👶
Access the paper here:
www.sciencedirect.com/science/arti...
@dr-yannis.bsky.social @charlie-huveneers.bsky.social

Group courtship, mating behaviour and siphon sac function in the whitetip reef shark, Triaenodon obesus We analysed video records of three mating events involving nine free-living whitetip reef sharks in Cocos Islands, Costa Rica to examine reproductive …

Very cool observation. Consistent with observations in other species like Whitetip Reef Shark (www.sciencedirect.com/science/arti...) and Nurse Shark (www.jstor.org/stable/pdf/1...)

We want to invite you to discover the latest 12th issue of Shark News – the official IUCN Species Survival Commission (SSC) IUCN SSC Shark Specialist Group (SSG) magazine.

Population surge for endangered sharks labelled 'labradors of the sea' Scientists say increasing numbers of east coast grey nurse sharks is rare good conservation news for the critically endangered species.

Some awesome news for your Monday. Critically endangered grey nurse sharks are increasing in number by about 5% a year, the first time the conservation efforts have seemed to work for this species! Still just 1500 breeding adults across eastern Australia...

www.abc.net.au/news/2025-09...

We are looking for an Office Coordinator to support the IMOS AODN team in delivering high-impact, data-driven projects that contribute to Australia’s marine research capabilities.

🔗 bit.ly/3VHfTxu

📑 #NewStudy by Amini et al. reviews how relatedness and kinship has been studied in sharks and rays, highlighting knowledge gaps that can guide future work.

👀 doi.org/10.1007/s111...

Apply for the Scripps Postdoctoral Fellowship! I'm looking to support a strong candidate in fish physiology and/or biomechanics. Deadline: Oct 9, 2025. Eligibility: PhD by Nov 30, 2026 with ≤3 years postdoc experience. 2 years, $74K salary, $6K research allowance 👉 apol-recruit.ucsd.edu/JPF04348 🧪 🐟

Join us in Walyalup / Fremantle on 19–20 November for the Forum for Operational Oceanography.

This year’s program features keynote talks from Katrina Maguire and Arani Chandrapavan.

Places are limited, so register now 🔗 bit.ly/4oWaiks

Curator job opening at the fabulous American Museum of Natural History in New York City!

Know a marine fish person 🐠 or oceanographer who might be interested?

Job opportunities: 2 Postdoctoral Fellowships at CSIRO CSIRO, Australia’s national science agency, is currently recruiting two eDNA Postdoctoral Fellows. Applications close on October 5th. More information and links below. CSIRO Postdoctoral Fell…

Job opening! CSIRO @csiropublishing.bsky.social is currently hiring 2 #eDNA Postdoctoral Fellowships!

sednasociety.com/2025/09/04/j...

Huh.

Unprecedented substitution of seafood species with non-aquatic species was found...Almost 60 % of shark products were identified as pork.

"Face-off: Shark or pork? DNA barcoding authentication and labelling analysis of shark products"

This common fish has an uncommon feature: forehead teeth, used for mating New findings call into question one of the core assumptions about teeth. Adult male spotted ratfish, a shark-like species native to the eastern Pacific Ocean, have rows of teeth on top of their heads,...

New paper is officially out!
Ratfish have a second jaw on their foreheads - CT + histology show they’re real teeth, built from the same tissues and signals as oral teeth.

www.washington.edu/news/2025/09...

Ant queen lays eggs that hatch into two species Bizarre discovery of interspecies cloning “almost impossible to believe,” biologists say

“Just when you think you’ve seen it all, social insects reveal another surprise.” https://scim.ag/47sVFyS

One mother for two species via obligate cross-species cloning in ants - Nature In a case of obligate cross-species cloning, female ants of Messor ibericus need to clone males of Messor structor to obtain sperm for producing the worker caste, resulting in males from the same moth...

Sometimes biology just blows your mind. If you have not seen the new paper "One mother for two species via obligate cross-species cloning in ants " in @nature.com or some of the posts or commentary about it. Do yourself a favor and marvel in the wonders of nature...

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

This Sunday is #NationalThreatenedSpeciesDay 🦈 We’re highlighting the grey nurse shark, critically endangered on Australia’s east coast.

Learn more 🔗 bit.ly/4p61LeH

#NCRISImpact

@drrossdwyer.bsky.social