Colin A. Simpfendorfer

Colin Simpfendorfer

@sharkcolin.bsky.social

3.4K followers 400 following 170 posts

Shark scientist since 1986. Passionate about sharks and rays, and their conservation and management. Lapsed academic.

Videos

Environmental science 66%

Geography 17%

Posts Replies Media Videos

Reposted by Colin A. Simpfendorfer

Integrated Marine Observing System @imos-aus.bsky.social · 19h

The 2024–25 IMOS Annual Highlights are now out, showcasing key achievements from across our program and community 🌊

🔗 bit.ly/3MkLMKQ

#NCRISImpact

Reposted by Colin A. Simpfendorfer, Stephen D. Murphy

Emma Vogel @efvogel.bsky.social · 5d

We are hiring: #PhD fellow in Ecosystem-based management and marine connectivity🐋🧪🛰️

Want to work with tracking data from migratory species to identify ecological corridors and help inform biodiversity conservation priorities?
Apply by Dec 7th!
@bioprotectproject.bsky.social
tinyurl.com/ytfmfhfc

PhD Fellow in Ecology/Ecosystem-Based Management (289259) | UiT The Arctic University of Norway

Job title: PhD Fellow in Ecology/Ecosystem-Based Management (289259), Employer: UiT The Arctic University of Norway, Deadline: Sunday, December 7, 2025

www.jobbnorge.no

Reposted by Colin A. Simpfendorfer, Stacy D. VanDeveer

Andrew D Thaler @drandrewthaler.bsky.social · 7d

It's live! Impacts of Deep-sea Mining on Migratory Species: Review and Knowledge Gaps.

In English, French, and Spanish. Annex I is the actual report.

www.cms.int/document/dee...

25.2.3 Deep-Sea Mining | Convention on the Conservation of Migratory Species of Wild Animals

www.cms.int

Reposted by Colin A. Simpfendorfer

Sharks International 2026 @sharks-int.bsky.social · 7d

A guide to: Sri Lankan Wildlife 🐆

Sri Lanka is a global biodiversity hotspot, home to unique and endemic species, including around 140 mammals, 400 birds, and 170 reptiles.

🦈 SI2026
📅 Dates: 4-8 May
📍 Location: Colombo, Sri Lanka
🔗 si2026.org

Reposted by Colin A. Simpfendorfer

Sharks International 2026 @sharks-int.bsky.social · 12d

📣 Announcement! Abstract Submission Deadline Extended to November 30, 2025

Being guilty of last minute submissions ourselves, we felt that a few more days would help those of you processing your abstract ideas!

👉 si2026.org

Reposted by Colin A. Simpfendorfer

James Cook University @jcuofficial.bsky.social · 12d

Seven JCU researchers have been named in the @clarivateag.bsky.social annual list of Highly Cited Researchers. Demonstrating significant and broad influence in their fields of research.
See the full list here: clarivate.com/highly-cited...

Clarivate Highly Cited Researchers 2025

The Highly Cited Researchers 2025 list identifies and celebrates individuals who have demonstrated significant and broad influence in their fields of research. Through rigorous selection criteria and ...

clarivate.com

Reposted by Colin A. Simpfendorfer

Domino Albert 🌊 @dominocean.bsky.social · 12d

NEW #SharkLeague #ICCAT Factsheet outlines key steps needed to strengthen existing measures & close critical gaps - from enforcing the finning ban & rebuilding shortfin mako populations to protecting basking & white sharks, & ensuring sustainable blue 🦈 fisheries sharkleague.org/2025/11/10/i...

ICCAT 2025: Shark League Calls for Stronger Protections

The Shark League’s ICCAT 2025 factsheet outlines science-based steps to protect sharks and rays and strengthen Atlantic conservation.

sharkleague.org

Reposted by Colin A. Simpfendorfer, Juan Rocha

Nick Graham @nickajgraham.bsky.social · 15d

PhD position - Changing Ecological Role of Coral Reef Marine Protected Areas.

One of the new @exageo-dla.bsky.social advertised projects: www.exageo.org/phd-student-... - deadline for applications 9th January. International applications welcome.

Come and join us @lec-reefs.bsky.social

Reposted by Colin A. Simpfendorfer

Trevor A. Branch @trevorabranch.bsky.social · 22d

Annual plug for the fabulous phylopic.org website with tens of thousands of easily searchable silhouette images for almost every life form imaginable. They make nice additions to your biology plots!

Reposted by Colin A. Simpfendorfer, Matthew J. Witt, Vincent Raoult

Exeter Marine @exetermarine.bsky.social · 22d

NEW PAPER: Survival and recovery of three shark species in North-East Atlantic recreational fisheries.

academic.oup.com/icesjms/arti...

@garzonfrancesco.bsky.social @drmjwitt.bsky.social
🦑🐟🧪🌐🌊🎣

Survival and recovery of three shark species in North-East Atlantic recreational fisheries

Abstract. Understanding how sharks respond to catch and release (C&R) recreational fisheries is an important requirement for effective management. Post

academic.oup.com

Reposted by Colin A. Simpfendorfer

IUCN SSC Shark Specialist Group @iucnshark.bsky.social · 23d

FINAL DEADLINE | 15 NOVEMBER 2025

Reminder that abstract submissions for Sharks International 2026 (SI2026) are still open for 2 more weeks!

The IUCN SSC Shark Specialist Group will be hosting the session: “Leveraging Important Shark and Ray Areas (ISRAs) for Policy Action.”

Reposted by Colin A. Simpfendorfer

David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 24d

Book review: Shark tales from ancient seas www.cell.com/current-biol...

Shark tales from ancient seas

The world’s oceans and rivers are currently home to at least 1,250 species of sharks (broadly including sharks, rays and chimaeras). They live in almost all marine habitats above 3,500 m depth, and…

www.cell.com

Reposted by Colin A. Simpfendorfer, John R. Hutchinson

John P. Friel, Ph.D. @friel.bsky.social · 28d

The earliest appearance of gigantic lamniform #sharks has now been pushed back by ~15 Ma (upper Aptian, ~115 Ma) with the discovery of enormous cardabiodontid shark remains from northern Australia.🦈🧪

www.nature.com/articles/s42...

Early gigantic lamniform marks the onset of mega-body size in modern shark evolution - Communications Biology

The earliest appearance of mega-body size in sharks is pushed back by 15 million years with the discovery of new fossils from Northern Australia. Using a comprehensive dataset of living sharks to esti...

www.nature.com

Reposted by Scott C. Doney, Colin A. Simpfendorfer, Elena Litchman , and 3 more Scott C. Doney, Colin A. Simpfendorfer, Elena Litchman, Mark N. Maunder, Trevor A. Branch, Jessica A. Gephart

Jessica R. Glass, PhD @jessicaglass.bsky.social · Oct 24

🚨 Recruiting 12 PhD students for a new NSF-funded program at the University of Alaska Fairbanks College of Fisheries and Ocean Sciences! This program is for U.S. students who received an Honorable Mention on the NSF GRFP within the last 3 years. @uafairbanks.bsky.social

www.uaf.edu/cfos/academi...

EMERGE Alaska | College of Fisheries and Ocean Sciences

www.uaf.edu

Reposted by Colin A. Simpfendorfer, Éva E. Plagányi, Mark N. Maunder , and 1 more Colin A. Simpfendorfer, Éva E. Plagányi, Mark N. Maunder, Trevor A. Branch

Jessica Gephart @jagephart.bsky.social · Oct 24

The Blue Food Futures Fellowship application is now open!

Fellows receive 6 mo support at their home institution to address pressing issues in blue food + mentorship from a global blue research network + opportunities to present research at international fora

⬇️ More
bluefood.earth/fellowships/

Fellowships | BFFP

Blue Food Futures Fellows research critical questions about blue foods, filling knowledge gaps and providing actionable insights for global food and climate initiatives.

bluefood.earth

Reposted by Colin A. Simpfendorfer

Domino Albert 🌊 @dominocean.bsky.social · Oct 23

🦈 A new study indicates that deep-sea mining could threaten at least 30 species of sharks, rays and chimaeras, many of which are already at risk of extinction.

#SharkConservation #Shark #DeepSea #DeepSeaMining #DefendTheDeep

news.mongabay.com/2025/10/mini...

Mining the deep-sea could further threaten endangered sharks and rays

New research has found that deep-sea mining in international waters could threaten at least 30 species of sharks, rays and chimaeras — many of which are already at risk of extinction. Chondrichthyes, ...

news.mongabay.com

Reposted by Colin A. Simpfendorfer

Australian Society for Fish Biology @austsocfishbiol.bsky.social · Oct 19

CSIRO is #hiring a Collection Manager for the Australian National Fish Collection 🐟

📍 Hobart, #Tasmania
💰 $96,000 - $109,000
🚨Deadline: 31 Oct 2025

👀 jobs.csiro.au/job/Hobart%2...

Reposted by Colin A. Simpfendorfer

Domino Albert 🌊 @dominocean.bsky.social · Oct 17

The Mexico 🇲🇽 government has implemented new protections for several species of Atlantic sharks, but conservationists have been quick to point out that the bans were required under international commitments adopted years ago.

#SharkLeague 🦈

www.seafoodsource.com/news/environ...

Mexico implements Atlantic shark bycatch protections

The Mexico government has implemented new protections for several species of Atlantic sharks

www.seafoodsource.com

Colin Simpfendorfer @sharkcolin.bsky.social · Oct 17

New #sharkscience from @diegocardenosa.bsky.social and others.
Ghosts of the current: environmental DNA assays to detect conservation priority areas for three critically endangered hammerhead sharks.
doi.org/10.3389/fmar...
@iucnshark.bsky.social

Frontiers | Ghosts of the current: environmental DNA assays to detect conservation priority areas for three critically endangered hammerhead sharks

Small-bodied hammerhead sharks (Sphyrna corona, S. media, and S. vespertina) are among the most threatened and understudied elasmobranchs, yet little is know...

doi.org

Colin Simpfendorfer @sharkcolin.bsky.social · Oct 17

New #sharkscience from Hilary Lewis and others:
Challenging traditional methods of age estimation: elemental and isotopic characterisation of speartooth shark Glyphis glyphis vertebrae.
www.int-res.com/abstracts/me...
@iucnshark.bsky.social @austsocfishbiol.bsky.social @mickgrant.bsky.social

www.int-res.com

Colin Simpfendorfer @sharkcolin.bsky.social · Oct 17

Happy #internationalsawfishday to all who celebrate.

Reposted by Colin A. Simpfendorfer

Domino Albert 🌊 @dominocean.bsky.social · Oct 17

Mexico has finally fulfilled its international commitments to protect Atlantic sharks 🦈

New domestic rules set science-based catch limits for blue & shortfin mako sharks, a long-overdue step toward sustainable fisheries under #ICCAT

sharkleague.org/2025/10/16/b...

#SharkConservation #SharkLeague

Better Late Than Never: Mexico Fulfills International Obligations to Protect Atlantic Sharks - Shark League for the Atlantic and Mediterranean

Shark League welcomes overdue bans on bigeye thresher, oceanic whitetip, shortfin mako, hammerhead & silky sharks.

sharkleague.org

Colin Simpfendorfer @sharkcolin.bsky.social · Oct 16

100% endorse this travel advice from prior experience. And you you can duck around the corner for a quick glimpse of a stuffed dodo before heading back to Heathrow.

Trevor A. Branch @trevorabranch.bsky.social · Oct 15

My favorite exhibit, at the Natural History Museum. Perfect for 10 hour layovers via Heathrow.

David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · Oct 15

Wildlife Photographer of the Year awards – in pictures

Colin Simpfendorfer @sharkcolin.bsky.social · Oct 16

New #sharkscience from Shay Kashey.
Guinean landing surveys of Bentfin devil rays add insight into threatened elasmobranch catch.
link.springer.com/article/10.1...
Lots of data on elasmobranch landings, including rhinorays.
@mantatrust.bsky.social @danielfernan7.bsky.social @iucnshark.bsky.social

Guinean landing surveys of Bentfin devil rays add insight into threatened elasmobranch catch - Environmental Biology of Fishes

Populations of many elasmobranchs have decreased globally, with over a third of species threatened with an elevated risk of extinction, largely due to fishing pressure. In West Africa, a general lack ...

link.springer.com

Reposted by Colin A. Simpfendorfer

Trevor A. Branch @trevorabranch.bsky.social · Oct 15

My favorite exhibit, at the Natural History Museum. Perfect for 10 hour layovers via Heathrow.

David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · Oct 15

Wildlife Photographer of the Year awards – in pictures

The Wildlife Photographer of the Year is an annual competition hosted by the Natural History Museum in London, which awards top honours in various categories for outstanding photography

www.theguardian.com

Reposted by Colin A. Simpfendorfer

🌊Markus Knigge🐟 @oceanknigge.bsky.social · Oct 14

Important news for those tracking #30by30. @protectedplanet.bsky.social merging WDPA & WD-OECM into new 'World Database on Protected and Conserved Areas (WDPCA).' @unep.org @unbiodiversity.bsky.social
www.protectedplanet.net/news-and-sto...

Introducing the WDPCA

Exciting changes are coming to Protected Planet in November, including a bringing together and rebrand of our flagship databases into the World Database on Protected and Conserved Areas.

www.protectedplanet.net

Reposted by Colin A. Simpfendorfer

IPBES @ipbes.net · Oct 13

#DidYouKnow ? Shark reproductive rates and recovery potential are known to decline when depth increases & population depletion risks exist, even when exploitation (targeted or incidental) rates are low.
— IPBES #SustainableUse Assessment

Let's protect deep-sea sharks. 🦈

Reposted by Colin A. Simpfendorfer, Steve Carver

IUCN SSC Shark Specialist Group @iucnshark.bsky.social · Oct 10

The IUCN Red List of Threatened Species has just been updated and now includes assessments of 1,266 species of sharks, rays, and chimaeras.

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