Athanasios Nikolaou
@thanasisnikolaou.bsky.social
1.2K followers 850 following 30 posts
PhD Student at the Department of Marine Sciences @uaegean, Greece | Passionate about advancing #EcosystemBasedManagement (EBM) for improved #MarineConservation
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thanasisnikolaou.bsky.social
Our article “What do we know about the state of European seas?” is now out in @consletters.bsky.social. In this study, we used all available #MSFD assessments to unveil the status of European Seas. @drangelborja.bsky.social @skatsanevakis.bsky.social
Find the article link at the post’s end.
Reposted by Athanasios Nikolaou
drangelborja.bsky.social
Do you want to learn about the method of choosing tools to support Ecosystem-Based Management and marine ecosystem managers? See our #GES4SEAS policy brief here:
doi.org/10.5281/zeno...
It contains our tool SEAS4GES that can be used by you in taking management decisions
RT!
#MarineEcology
#Research
Reposted by Athanasios Nikolaou
jennieacp.bsky.social
🔍 Has anyone come across transparent antifouling coatings for u/w camera lenses?
We’re looking for something commercially available in the EU, safe for static u/w cameras that will keep lenses clear without frequent manual cleaning.

Any leads, experiences, or suppliers would be very welcome! 🌊📷
Reposted by Athanasios Nikolaou
melaniebergma18.bsky.social
💨 New study suggests a high amount of inhalable small #microplastics (as much as 68,000 per day) in indoor environments, especially in cars. This highlights the urgent need to reduce our usage of plastics, which are a source of this diffuse form of air pollution.
www.theguardian.com/environment/...
Humans inhale as much as 68,000 microplastic particles daily, study finds
Particles are small enough to burrow into lungs, says report, with health impacts ‘more substantial than we realize’
www.theguardian.com
Reposted by Athanasios Nikolaou
skatsanevakis.bsky.social
New global synthesis: 1,535 established #non-native #fish across 193 countries. Aquarium trade, aquaculture & corridors dominate; competition & predation drive impacts. Calls for pathway-focused biosecurity. doi.org/10.1111/gcb....
#MarineEcology #AquaticEcology #bioinvasions #InvasiveSpecies
A Global Account of Established Non‐Native Fish Species
This study compiles the most complete global database of non-native fish species that have successfully established themselves in new freshwater and marine environments. It documents 1535 species acr...
doi.org
Reposted by Athanasios Nikolaou
lornamckellar.bsky.social
'Notably, 11 out of 24 state features/criteria were not assessed in over half of the ecoregions' - my PhD work is evaluating methods for estimating thresholds for good status to address gaps in state assessments e.g., for GES under the #MSFD and #UKMS
thanasisnikolaou.bsky.social
Our article “What do we know about the state of European seas?” is now out in @consletters.bsky.social. In this study, we used all available #MSFD assessments to unveil the status of European Seas. @drangelborja.bsky.social @skatsanevakis.bsky.social
Find the article link at the post’s end.
Reposted by Athanasios Nikolaou
skatsanevakis.bsky.social
The #EU collectively failed to deliver #GoodEnvironmentalStatus in its seas. Bold, binding action across all sectors—strong #MPAs, pollution controls, fishing reform—is urgently needed to halt biodiversity loss and restore European Seas.
#MarineEcology #MarineConservation #MSFD #GES4SEAS 🌐🌍🧪🌊🦈🐬🐋
thanasisnikolaou.bsky.social
Our study highlights the urgent need to fill these gaps and strengthen marine #conservation. This requires action both at the #European level and at the regional level through reinforced international cooperation and agreements
thanasisnikolaou.bsky.social
Intense pressures can cause structural changes in ecosystems, leading to degraded and less productive ecosystems. In regions with limited data and assessments, such changes may go unnoticed and unaddressed, resulting in serious impacts and loss of vital #ecosystem services. #tippingpoint
thanasisnikolaou.bsky.social
Importantly, the level of knowledge is uneven across regions. In the Eastern Mediterranean, for example, there are important knowledge gaps. In contrast, areas with strong international cooperation—like the Baltic and North Seas—have comprehensive data across species groups and pressures.
thanasisnikolaou.bsky.social
Most species groups are not in Good Environmental Status in any region. At the same time, intense pressures and impacts are recorded almost everywhere, though a few exceptions exist for certain pressures in specific regional seas. #GES
thanasisnikolaou.bsky.social
We developed indices to quantify the #state of #marine #biodiversity, pressures, and their impacts across European Seas. The results show a deteriorated state of marine biodiversity across all European seas.
thanasisnikolaou.bsky.social
Our article “What do we know about the state of European seas?” is now out in @consletters.bsky.social. In this study, we used all available #MSFD assessments to unveil the status of European Seas. @drangelborja.bsky.social @skatsanevakis.bsky.social
Find the article link at the post’s end.
Reposted by Athanasios Nikolaou
twernberg.bsky.social
Impacts of marine heatwaves on biodiversity and ecosystem services: our new paper in Nature Reviews Biodiversity is out!
doi.org/10.1038/s443.... @natrevbiodiv.nature.com @uwaoceans.bsky.social @filbeek.bsky.social @dansmale1.bsky.social
Reposted by Athanasios Nikolaou
gscumming.bsky.social
Very clear, well-explained introduction to the current situation with coral reefs globally
davidobura.bsky.social
‘It’s death by a thousand cuts’: marine ecologist on the collapse of coral reefs.

More than anything #climate and #biodiversity crises make me angry. As few people are largely responsible, while all pay the price, mostly those least responsible.

www.theguardian.com/environment/...
‘It’s death by a thousand cuts’: marine ecologist on the collapse of coral reefs
David Obura believes humans have been using nature for free, and tipping points at some reefs have already passed
www.theguardian.com
Reposted by Athanasios Nikolaou
skatsanevakis.bsky.social
🏖️ Beach access is a right, not a luxury. Our new study led by @stamatiadouv.bsky.social reveals €57M lost yearly in Greece because many #wheelchair users are excluded from the coast. Time to invest in truly inclusive beaches.
🔗 doi.org/10.1016/j.ma...
#MarineEcology #EcosystemServices #GES4SEAS 🧪🌍🌐
Reposted by Athanasios Nikolaou
alexanderlees.bsky.social
"Estimated globally for the period 1851–2016, the modern extinction rate for freshwater fishes stands at 33.47 extinctions per million species-years (E/MSY), more than 100 times greater than the natural background extinction rate of 0.33 E/MSY". 🌍
globalchangebio.bsky.social
Global Patterns and Drivers of Freshwater Fish Extinctions: Can We Learn From Our Losses?

🔗 buff.ly/1ljgy5X
Reposted by Athanasios Nikolaou
drangelborja.bsky.social
2nd day of #GES4SEAS meeting, with this extraordinary team and practitioners. Thanks for the work doing

#research
#science
#MarineEcology
thanasisnikolaou.bsky.social
Scenes from Friday’s ROV monitoring of gorgonian forests around Lesvos Island @skatsanevakis.bsky.social @jennieacp.bsky.social #MarineConservation
Reposted by Athanasios Nikolaou
skatsanevakis.bsky.social
Our #ROV surveys in Lesvos continue, revealing breathtaking #gorgonian forests—but not without a stark reminder of human impact. #Ghostnets and abandoned longlines haunt these vibrant ecosystems.
@nemo-tools.bsky.social @jennieacp.bsky.social
#MarineEcology #MarineConservation #Lesvos 🧪🌍🌐
Gorgonian forests in Lesvos Island, Greece Purple gorgonians (Paramuricea clavata) Abandoned longlines among gorgonians Ghost net
Reposted by Athanasios Nikolaou
jennieacp.bsky.social
Exciting news! The NEMO Tools ROV team of @skatsanevakis.bsky.social has begun exploring Lesvos Island, assessing gorgonians & coralligenous assemblages. Two trips down, five to go! Follow along @nemo-tools.bsky.social l 🧪🌊🐠

#MarineBiology #NEMOTools #MarineEcology #Fieldwork
ROV controller Yellow gorgonian - Eunicella cavolini
Reposted by Athanasios Nikolaou
lornamckellar.bsky.social
🚨 New research 🚨 (and the first paper from my PhD)

How do we define good vs. degraded marine ecosystems? Our study evaluated four methods for setting ecological thresholds—and not all are equally reliable. 🌊🧵 (1/4)
Reposted by Athanasios Nikolaou
xanthopop.bsky.social
🌍Exciting news! Our paper is officially published! 😀

It’s been an amazing journey with a fantastic team! ✨
In this study, we explore how eDNA metabarcoding can complement underwater visual surveys to enhance the detection of non-indigenous fish species in the Mediterranean Sea. 🌊
Complementing underwater visual surveys with eDNA metabarcoding to detect Mediterranean non-indigenous fishes|Mediterranean Marine Science
ejournals.epublishing.ekt.gr