Stelios Katsanevakis
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skatsanevakis.bsky.social
Stelios Katsanevakis
@skatsanevakis.bsky.social
5K followers 3.3K following 260 posts

Professor of Marine Ecology @University of the Aegean. Focus: marine conservation, biological invasions, marine biodiversity, and ecological monitoring. #GuardIAS #MarinePlan #GES4SEAS #NemoTools #BioBoost+ #CamBioMed #INSPIRE #MarineEcology #BioInvasions .. more

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Environmental science 67%
Geography 18%
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skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 9h
Check also our 2024 paper "A pulse check for trends in sea turtle numbers across the globe"🌍🌐Global sea turtle numbers show widespread increases. But: some declines persist and earlier gains can reverse, especially for leatherbacks. Conservation must stay vigilant. 🐢📈 www.cell.com/iscience/ful...

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 9h
Just published in AMBIO: the first global scoping review of #OECMs — conservation beyond protected areas 🌱📊 Revealing patterns, gaps & potential to help reach global biodiversity goals like 30×30. Dive in 👉 link.springer.com/article/10.1...
#conservation #biodiversity
@dpetza.bsky.social
Unlocking the potential of other effective area-based conservation measures (OECMs) for achieving conservation targets: A global scoping review - Ambio
Other Effective Area-based Conservation Measures (OECMs), introduced by the Convention on Biological Diversity (CBD), refer to areas outside formal protected-area networks that deliver effective and e...
link.springer.com

Reposted by Stelios Katsanevakis

guardias.bsky.social
GuardIAS @guardias.bsky.social · 21h
In 2025, #GuardIAS partnered with artists and communities in Lombardy, Italy, to explore invasive alien species and river biodiversity through performances, workshops, and co-creation activities.

Read more 👉 guardias.eu/social-perfo...

#InvasiveAlienSpecies #IAS #InvasiveSpecies #BioInvasions

Reposted by Ángel Borja, Stelios Katsanevakis

ges4seas-mooc.fediscience.org.ap.brid.gy
GES4SEAS MOOCs @ges4seas-mooc.fediscience.org.ap.brid.gy · 21h
We follow today with our #ges4seas #mooc on #oceanoptimism. Coastal ecosystems and the fishing communities that depend on them are impacted globally by extreme #Climate events (storms, heatwaves, etc.) and human pressures, as in these lobster and sea cucumber #fisheries
photos showing fishers in a beach, preparing the boats to fish lobsters, and a diver fishing sea cucumbers

Reposted by Ángel Borja, Stelios Katsanevakis

ges4seas-mooc.fediscience.org.ap.brid.gy
GES4SEAS MOOCs @ges4seas-mooc.fediscience.org.ap.brid.gy · 3d
Marine #megafauna is at risk in many seas
Sea otters are iconic predators in the north Pacific, but they were heavily hunted for their fur in the 18th and 19th centuries, as @nancyknowlton.bsky.social comments in this post
#ges4seas #mooc #oceanoptimism
photo showing the skin of sea otters, in 1892, by @NOAA archives

Reposted by Stelios Katsanevakis, Aníbal Pauchard, Julie L. Lockwood

guardias.bsky.social
GuardIAS @guardias.bsky.social · 5d
Learn eDNA and invasive species monitoring from leading European experts at the GuardIAS Summer School. Explore workflows, policy, and real monitoring applications.

Meet the trainers & register:
guardias.eu/meet-the-tra...

#GuardIAS #InvasiveAlienSpecies #IAS #InvasiveSpecies #BioInvasions

Reposted by Stelios Katsanevakis

guardias.bsky.social
GuardIAS @guardias.bsky.social · 5d
Meet Alice, your guide through the #GuardIAS MOOCs

In this Q&A, she explains why marine #InvasiveAlienSpeciesmatter, how the courses simplify complex science, & how citizen science helps tackle bioinvasions.

👉 guardias.eu/inside-the-g...

#IAS #InvasiveSpecies #BioInvasions

Reposted by Ángel Borja, Stelios Katsanevakis

ges4seas-mooc.fediscience.org.ap.brid.gy
GES4SEAS MOOCs @ges4seas-mooc.fediscience.org.ap.brid.gy · 5d
We start our examples of good news with the recovery of the estuary of Bilbao, in Northern Spain
This picture shows the evolution of estuarine #biodiversity in past 30 years
#ges4seas #mooc #oceanoptimism
this graphic, from Consorcio Bilbao Bizkaia, shows the evolution of biodiversity in the estuary, across 30 yr

Reposted by Ángel Borja

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 7d
Change the narrative about the ocean! 🌍 Dive into our #oceanoptimism Massive Open Online Course (MOOC) with #GES4SEAS — 4 weeks of inspiring learning. Let’s build hope together! 🌟
🧪🌐 #MarineEcology #Conservation
check our ocean optimism video: www.youtube.com/watch?v=Ozxe...

Reposted by Stelios Katsanevakis

climatenews.bsky.social
Climate News @climatenews.bsky.social · 9d
Excellent new video by Simon Clark interviewing @hausfath.bsky.social discussing the rate of warming and climate sensitivity in great detail.

Must watch!
We don’t know how much warming we’ll see by 2050. Here's why.
YouTube video by Simon Clark
youtu.be

Reposted by Joan Dudney

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 11d
#Mediterranean seafloors are heating fast 🌊🔥. Our new study shows bottom marine #heatwaves will intensify, last longer, and threaten benthic species—often year-round by 2100. A growing #ClimateRisk for benthic #biodiversity.
#ClimateChange 🌍🌐🧪

www.sciencedirect.com/science/arti...
Increasing bottom marine heatwaves pose a critical risk to Mediterranean benthic species
Marine heatwaves (MHWs) are extreme ocean temperature events broadly affecting marine ecosystems. The Mediterranean Sea has faced severe impacts from …
www.sciencedirect.com

Reposted by Stelios Katsanevakis, Julie L. Lockwood

guardias.bsky.social
GuardIAS @guardias.bsky.social · 12d
Tracking an invader before it arrives. 🕵️‍♀️

The #GuardIAS team is modelling how Wakame might spread through Danish windfarms using eDNA and 3D hydrodynamics.

Read more: guardias.eu/updates-on-t...

#InvasiveAlienSpecies #IAS #InvasiveSpecies
#BioInvasions

Reposted by Stelios Katsanevakis

guardias.bsky.social
GuardIAS @guardias.bsky.social · 12d
Lionfish case study updates

The #GuardIAS team is testing lionfish removals in Greece to protect biodiversity. Acoustic monitoring insights are now guiding new management strategies for the Mediterranean.

Read more 👉 guardias.eu/updates-on-t...

#InvasiveAlienSpecies #InvasiveSpecies #BioInvasions

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 13d
#US #science under stress: >7,800 grants cut/frozen, 25,000+ research jobs lost & key agencies downsized — vivid graphics show the toll on discovery and research infrastructure. Must see the data.
#Trump #research 🧪

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 13d
As 1.5 °C #warming is being breached, #climate policy needs new accountability frameworks grounded in #science -moving beyond old temperature limits to define nations’ responsibilities in an ‘overshoot’ world.
#ClimateChange 🧪
www.nature.com/articles/d41...
Exceeding 1.5 °C requires rethinking accountability in climate policy
A scientific foundation is required to establish nations’ responsibilities in a hotter ‘overshoot’ world.
www.nature.com

Reposted by Marta Coll, Stelios Katsanevakis

drangelborja.bsky.social
Dr Angel Borja @drangelborja.bsky.social · 13d
It's my pleasure to annnounce a new @azti.bsky.social #GES4SEAS summer school: assessing cumulative effects from multiple #pressures at sea, a practical application, using our Tikta tool. There is a limited number of places, apply now!
#Research
#MarineEcology

www.azti.es/en/events/su...
AZTI SUMMER SCHOOL 2026 "Cumulative effects of multiple human pressures at sea and their impacts on ecosystem components: a practical application for environmental status assessment" - AZTI
AZTI Summer School 2026 offers hands-on training on Tikta for assessing cumulative pressures and marine environmental status.
www.azti.es

Reposted by Stelios Katsanevakis

guardias.bsky.social
GuardIAS @guardias.bsky.social · 14d
1st POMPOM sampling campaign complete! 🌊

We’re monitoring Greek ports for the invasive seaweed Rugulopteryx okamurae using eDNA for early detection. A major milestone for the #GuardIAS project.

Read more: guardias.eu/completion-o...

#InvasiveAlienSpecies #IAS #InvasiveSpecies
#BioInvasions
POMPOMs before immersion in the sea. POMPOMs at collection, after a month of immersion in the sea.

Reposted by Stelios Katsanevakis

drangelborja.bsky.social
Dr Angel Borja @drangelborja.bsky.social · 19d
Bad future for US science
#research

www.nature.com/immersive/d4...
US science after a year of Trump: what has been lost and what remains
A series of graphics reveals how the Trump administration has sought historic cuts to science and the research workforce.
www.nature.com

Reposted by Stelios Katsanevakis

drangelborja.bsky.social
Dr Angel Borja @drangelborja.bsky.social · 24d
Incredible Journeys: Filling in the Blanks of Sea #Turtle #Migrations

These marine reptiles lead complicated lives, making protecting them a real challenge.

#marineecology
#research

therevelator.org/sea-turtle-m...
Incredible Journeys: Filling in the Blanks of Sea Turtle Migrations • The Revelator
These marine reptiles lead complicated lives, making protecting them a real challenge. But new science has revealed important information.
therevelator.org

Reposted by Julie L. Lockwood, Sabina Burrascano

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 24d
Thrilled to share that our Horizon Europe proposal #NextBON (Next-generation #Biodiversity Observation Network) was accepted yesterday! Led by Annemarie Bastrup-Birk, NextBON will deliver a harmonised, policy-ready 3-tier #monitoring blueprint across Europe (land–freshwater–sea). Stay tuned!
🌍🌐

Reposted by Ángel Borja, Julie L. Lockwood

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 26d
🚨 Applications open: GuardIAS Summer School!
Learn how to detect aquatic #InvasiveAlienSpecies using #eDNA — from sampling design and lab workflows to bioinformatics + policy integration. Lectures + hands-on case studies.
👉 guardias.eu/welcome-to-t...
#MarineEcology #AquaticEcology #BioInvasions 🌍🌐

Reposted by Pablo García‐Díaz, Pieter Vantieghem

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · 27d
#AI is transforming #ecology — but at what cost? A new #Nature piece warns that as models, drones & remote sensing boom, many scientists are spending less time outdoors (“I rarely get outside”). Are we losing essential natural-history insight? 🌿🤖
🧪🌍🌐
www.nature.com/articles/d41...

Reposted by Stelios Katsanevakis

drsabinemetzger.bsky.social
Dr. Sabine Metzger 🦇 @drsabinemetzger.bsky.social · 27d
www.thisiscolossal.com/2020/01/stri...
Striped Eel Catfish Traverse the Ocean Floor as a Strategically Rotating Mass
For young striped eel catfish, there really is safety in numbers. A recent Instagram post shares a video by Marie-Laure Vergne of about one hundred juvenile fish moving across the bottom of the ocean....
www.thisiscolossal.com

Reposted by Stelios Katsanevakis

guardias.bsky.social
GuardIAS @guardias.bsky.social · 28d
New video series from our 2025 General Assembly! 🌊

📺 Watch interviews on the marbled crayfish, the African clawed frog, citizen science, & Rugulopteryx okamurae: www.youtube.com/playlist?lis...

🌐 Explore the project: guardias.eu

#GuardIAS #InvasiveAlienSpecies #IAS #InvasiveSpecies #BioInvasions

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · Jan 9
Withdrawing from #IPBES, despite its mandate to provide credible science on the #biodiversity crisis, undermines global cooperation on urgent environmental challenges. US retreat from multilateral science-policy platforms abandons shared solutions at a moment when collective action is needed most. 🧪
ipbes.net IPBES @ipbes.net · Jan 8
“We cannot withdraw from the fact that over 1 million species of plants and animals face extinction.” 🧪

IPBES remains committed to its mandate to provide the most credible science and evidence about biodiversity to all decision makers and actors. 🌍

Reposted by Andy Purvis, Stelios Katsanevakis, Julie L. Lockwood , and 3 more

ipbes.net
IPBES @ipbes.net · Jan 8
“We cannot withdraw from the fact that over 1 million species of plants and animals face extinction.” 🧪

IPBES remains committed to its mandate to provide the most credible science and evidence about biodiversity to all decision makers and actors. 🌍

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · Jan 8
#Trump has cut ties with 66 organizations

"While all other nations are stepping forward together, this latest step back from global leadership, #climate cooperation and #science can only harm the US economy, jobs and living standards"

🧪

www.euronews.com/green/2026/0...
Critics decry Trump pulling US out of UN climate treaty as 'a new low'
Experts say withdrawing from the United Nations Framework Convention on Climate Change is a "strategic blunder" for the US.
www.euronews.com

Reposted by Ferran Sayol

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · Jan 6
Point of no return: academic #funding is at a tipping point. When the effort and money spent applying for grants equals or exceeds the funding awarded, the system stops serving science and starts draining it. Time to rethink how we fund #research.
🧪🌐🌍
www.nature.com/articles/d41...
Point of no returns: researchers are crossing a threshold in the fight for funding
With so little money to go round, the costs of competing for grants can exceed what the grants are worth. When that happens, nobody wins.
www.nature.com

Reposted by Stelios Katsanevakis

jennieacp.bsky.social
Jennifer C.A. Pistevos, Ph.D. @jennieacp.bsky.social · Jan 4
www.theguardian.com/artanddesign...
Aliens: the spread of invasive plants and animals across Europe – in pictures
Erik Irmer has been documenting the spread of invasive plant and animal species that disrupt native ecology across Europe. He focuses on humans’ interactions with these plants and animals. Aliens is p...
www.theguardian.com

Reposted by Ángel Borja

skatsanevakis.bsky.social
Stelios Katsanevakis @skatsanevakis.bsky.social · Jan 3
Marine functional #connectivity matters—from genes to energy flows. This synthesis clarifies concepts, unifies fragmented approaches, and proposes a global framework to better link science, #SpatialPlanning, and #policy in a changing ocean. doi.org/10.1002/brv....
#MarineEcology 🌐🌍🧪🌊