Elena Fernández Corredor

Using Math to Protect Fish in the Ocean Have you ever wondered how scientists count fish in the ocean? Fish are always moving, and the ocean is huge, so counting them is not easy! Scientists use stock assessments, a method that gathers clues such as how many fish are caught by fishing boats, how many are seen in surveys, and how fast fish grow. Using math and computer models, scientists predict how fish populations will change in the future. If too many fish are caught, there might not be enough left to reproduce, which is called overfishing. Stock assessments help managers decide how many fish can be safely caught. Scientists also protect special areas where fish lay eggs to help their numbers grow. By understanding stock assessments, we can help keep fish in the ocean for future generations. Thanks to ongoing work of scientists, we can enjoy fish today while making sure there are plenty left for tomorrow.

🚨 New in Frontiers for Young Minds!

Ever wondered how scientists count fish in the ocean? 🐠
This kid‑friendly article shows how math and clues help protect fish and prevent overfishing. 🌊

👉 Read:https://short.do/5iO7Ic

@icmcsic.bsky.social 
@vi.ieo.es 
@mgraziapennino.bsky.social

A barplot showing the general decrease in metabarcoding OTU richness for the period 2020-2022, compared to the previous period 2014-2015. Two general pictures of both sampled National Parks, Cíes Islands in the Atlantic and Cabrera Archipelago in the Mediterranean. Also, three small pictures of the sampled underwater communities are shown.

Bad news for rocky reefs! Long-term metabarcoding survey show general decrease in biodiversity and richness in rocky reef communities from two national parks in Spain, in a span of just 5 years, and despite the highest level of protection! Project #BlueDNA
onlinelibrary.wiley.com/doi/10.1111/...

🔵 ¡Nueva publicación!

📄"Pelagic productivity and abundance of competitors modulate trophic niche segregation between large predators."

Liderado por @elenafcorr.bsky.social del @imares-group.bsky.social y fruto de la colaboración entre el
IEO-CSIC y el ICM-CSIC

¿Quieres saber más? 👇

This was part of the #COTI project, funded by #FEMPA, #FondosEuropeos and #Pleamar🦈 @fbiodiversidad.bsky.social
@imares-group.bsky.social
@icmcsic.bsky.social

Still recovering from @eea2025.bsky.social 🦈
So many interesting talks, discussions and catch ups with friends ✨
Thanks to @saveourseas.bsky.social and #EEA for the opportunity to present part of my Ph.D. on the #ecology of large pelagic predators 🐟

🎣Our last deep-sea #shark tagging was a complete success!

We tagged 7 sixgill bluntnose sharks 🦈 and got fin samples and cloacal swabs for diet 🍽️ and genetic studies🧬

#COTI project, funded by #FEMPA, #FondosEuropeos and #Pleamar @fbiodiversidad.bsky.social @imares-group.bsky.social

📍Fieldwork day in #ALLIES project: post-breeding colony check.

No gulls remained, but we recovered the GPS from a yellow-legged gull tagged in June that sadly died.

We keep monitoring environmental health to better understand urban ecosystem dynamics 🌍🩺.

@icmcsic.bsky.social

Scientists from the Spanish National Research Council CSIC united in the group CSIC X Palestine meet every week in front of their respective institutes to support Gaza and Lebanon against Israel's attacks and denounce Israel's genocide and ethnic cleansing. CMIMA (ICM, IBE, UTM) September 30, 2025

Trophic niche partitioning between the white shark (Carcharodon carcharias) and the shortfin mako (Isurus oxyrinchus) in the central Mediterranean Sea Context Large predatory sharks such as the white shark (WS) and shortfin mako (SMK) have been historically depleted to Critically Endangered levels in the Mediterranean Sea. Despite their low abundanc...

@imares-group.bsky.social @icmcsic.bsky.social @jnavarro.bsky.social

🦈 New paper showing how juvenile white #sharks and shortfin makos coexist in the Tunisian Plateau… one more step towards understanding and conserving these Critically Endangered species in the #Mediterranean

and congrats to Chiara for leading this work!

📖 www.publish.csiro.au/WR/WR25028

🎣Last week blue shark tagging was a big hit!
We tagged 14 individuals and got fin samples and cloacal swabs for diet 🍽️ and genetic studies🧬

This is part of the #COTI project🦈, funded by #FEMPA, #FondosEuropeos and #Pleamar
@fbiodiversidad.bsky.social @icmcsic.bsky.social @jnavarro.bsky.social

Scientists from the Spanish National Research Council CSIC united in the group CSIC X Palestine meet every week in front of their respective institutes to support Gaza and Lebanon against Israel's attacks and denounce Israel's genocide and ethnic cleansing. CMIMA (ICM, IBE, UTM) September 23, 2025

Drag Queens Tag Sharks in Annual Florida Science Celebration The annual “Drag ’n Tag” expedition takes place amid a wave of antitransgender legislation

Today is “drag and tag,” tagging sharks with drag queens while raising money for LGBQT+ youth organizations in Florida!

www.scientificamerican.com/article/drag...

El projecte #COTI estudia els moviments dels taurons pelàgics al Mediterrani per reduir la captura accidental.
🦈15 tintoreres marcades revelen zones clau com el Cap de Creus i Palamós. Pesca i conservació poden anar de la mà!

📖 Més a #SOMPeixaters, @gremipeixaters.

The second chapter of my Ph.D. is out!
🐟 We evaluated how oceanography and fisheries influence the diet of #swordfish, a key species in Mediterranean and Atlantic foodwebs
🤟 Thanks to coauthors
@jnavarro.bsky.social @joangimenez.bsky.social @martacoll.bsky.social @salvagaviotas.bsky.social

Which factors shape the diet of large pelagic fish? (fish icon) We estimate swordfish diet composition and show how prey consumption is related to fishing pressure and environmental conditions.🐟
Find out more: buff.ly/II7JupT

Environmental and human factors shape the trophic ecology of a widespread marine predator Our study reveals how environmental factors and fishing pressure influence swordfish diet, highlighting trophic shifts under future climate scenarios. We provide a novel framework to strengthen our a...

🌍 How do climate change and fishing shape the feeding habits of swordfish?
A new study reveals how environmental and human factors influence the diet of swordfish in the Mediterranean and nearby Atlantic 🦑🐠
Read more 👉 doi.org/10.1111/1365...

@icmcsic.bsky.social
@elenafcorr.bsky.social

always delighted to get back to the lab for some Mediterranean spearfish sampling 🐟

🦈 We also shared progress from the #COTI project – Reconciling fishing and Conservation of Threatened pelagic sharks by Identifying ecologically important areas in the NW Mediterranean Sea. We shared objectives and presented our methodology during the #tagging workshop

@fbiodiversidad.bsky.social

Last April, I presented part of my PhD work exploring the drivers of trophic niche partitioning among pelagic #TopPredators, like swordfish, blue and mako sharks, at the Spanish Elasmobranch Network meeting 🦈

What an opportunity to discuss key topics in #shark and ray research and #conservation!

📽️✨ Here’s a recap of the #TEF Workshop! 🦑🌊
Five days of learning and discussion on marine trophic interactions, combining traditional and cutting-edge techniques—from chemical tracers to genetics and modeling. 🧬

Huge thanks to everyone who joined! 🙌
@icmcsic.bsky.social
@martacoll.bsky.social

Wrapping up a whole week of attending and teaching at the "Trophic ecology of marine organisms in past, present and future ecosystems" Workshop at @icmcsic.bsky.social organized by @imares-group.bsky.social, so excited to see the outputs 🌊

🦑🌊 This week, we’re hosting the workshop "Trophic ecology of marine organisms in past, present and future ecosystems"! 🧬🔬
Exploring traditional and cutting-edge techniques to study trophic interactions across time, from chemical tags to genetics and modelling.
#TEF #iMARES
@icmcsic.bsky.social

During the last years, I've been studying the #TrophicEcology of fishes 🐟 using methodologies such as stomach content and #stableisotopes analyses

check some of the outputs here ;)
🐟 t.co/4gR6g8r4FO
🐟 t.co/tIWpAHFQxa

#pelagic #fish #ecology #swordfish #Mediterranean

We're here to stay and won't be left aside again
Happy #InternationalDayofWomen&GirlsinScience 👩‍🔬💜
#11F
#WomenInSTEM

Today is the International Day of Women & Girls in Science. At #GES4SEAS project we have engaged women scientists with the #ocean assessment and management. These are only few of them. They are examples for future female scientists!
@azti.bsky.social
#WomeninScience
#MarineEcology
#Research
#STEAM

Hello bsky🐟

I’m Elena, an #environmental #biologist & #oceanographer, pursuing a PhD in #Biodiversity

I'm studying various aspects of the ecology of large pelagic fish like #swordfish and #sharks with @jnavarro.bsky.social @martacoll.bsky.social and Fran Ramírez at @imares-group.bsky.social

🦈🦈🦈

🔍✨ We’re preparing a special surprise for #11F, the International Day of Women and Girls in Science! 🧪🌊

We’ll be sharing it with you very soon! Stay tuned to
@imares-group.bsky.social 👀💙

#WomenInScience #GirlsInSTEM

@ICMCSIC