Juan Rodríguez-Márquez

In a first, orcas and dolphins seen possibly hunting together New footage shows orcas and dolphins coordinating hunts, hinting at interspecies teamwork to track and catch salmon off British Columbia.

Check out this article on science news: www.sciencenews.org/article/orca...

It’s no wonder that the carpenter’s rule diatom (Bacillaria paxillifera) was so popular at the Norwich Science Festival last week. Such a beautiful dance from this colonial diatom that’s very numerous in my plankton samples at the moment.
#marineplankton 🦑

As the Arctic tundra warms, soil microbes likely will ramp up CO2 production Experiments in mini greenhouses show how the tiny organisms lurking underground in a "sleepy biome" could be a contributor to climate change.

Check out this article on science news: www.sciencenews.org/article/arct...

Paisajes invadidos
En la 📷👇 10 especies de plantas invasoras originarias de varios continentes (América, África y Asia).
Barranc del Carraixet, Bétera (València) #EEI #EspeciesInvasoras

Hidden tree bark microbes munch on important climate gases Trees are known for absorbing CO2. But microbes in their bark also absorb other climate-active gases, methane, hydrogen, and carbon monoxide.

Check out this article on science news: www.sciencenews.org/article/tree...

You don’t need a brain to benefit from a good night of sleep. Despite lacking a central nervous system, jellyfish and sea anemones have sleep patterns remarkably similar to those of humans, researchers report.

Learn more: https://scim.ag/3NgeAEQ

Yay! Christmas stars in the plankton! This is a silicoflagellate called Octactis speculum, and I don’t see them very often. I got to see 2 in this week’s plankton sample!
#marineplankton 🦑

La nieve se hace de rogar: ¿cuánto se están retrasando las primeras nevadas del año en España por el cambio climático? Te lo contamos en #AEMETBlog

‼️⛰️¿Sabías que el cambio climático retrasará cada vez más la primera nevada contundente de la temporada? En zonas altas de nuestras cordilleras, hasta casi un mes más tarde.

Te lo contamos en el #DíaMundialdelasMontañas

📊Meteoclimática de CREAF ⤵️

aemetblog.es/2025/12/11/l...

174 examples of Brockmanniella brockmannii now in the NPIL! #marineplankton 🦑

Dated gene duplications elucidate the evolutionary assembly of eukaryotes - Nature Analysis of eukaryotic gene sequences using a relaxed molecular clock methodology indicate that eukaryotes emerged 3.0–2.25 billion years ago as a result of mitochondrial endosymbiosis with complex ar...

www.nature.com/articles/s41... INtrsting paper on the evolution of eukaryotes. Archeon what the driver of eukaryogenesis. Can we not find any evidence of this in nature currently?

El lenguaje importa: desde 2011 las FPU, FPI y demás son contratos. no becas. 14 años después muchos centros aún no lo reconocen.
Desde FPU Investiga lo denunciamos: cada día subiremos pruebas de un centro que sigue sin hacerlo.
¿En tu uni pasa? ¡Envíanos tus documentos!👇👇👇

I have photographed 110 individual Asterionellopsis glacialis colonies over the last 3 years. And now they’re all ready for the Norfolk Plankton Image Library! #marineplankton 🦑

Deep Antarctic waters hold geometric communities of fish nests Scientists found thousands of patterned fish nests in Antarctica’s Weddell Sea, boosting calls for marine protected areas.

Check out this article on science news: www.sciencenews.org/article/anta...

A few recent diatoms.
Paralia sulcata
Actinoptychus splendens and Actinoptychus vulgaris
Amphitetras antediluviana
Coscinodiscus radiatus
Not sure - can anyone help with this one? Synedra? Fragilaria?

Anyone good with marine flagellates? I thought this was quite a distinctive-looking chap with a reasonable chance of an ID? Any ideas?
#marineplankton #protistsonsky 🦑

Conserved genetic markers reveal widespread diatom sexual reproduction in the global ocean - Nature Communications Diatoms dominate the oceans, yet sexual reproduction - key to bloom dynamics and species evolvability - is rarely observed. Using a lab-to-field approach, this study presents conserved markers applica...

In our latest, we tackle a long-standing conundrum: when and where do diatoms reproduce sexually? Using a lab-to-field strategy, we designed conserved sex markers applied to microcosms & Tara Oceans metatranscriptomes, revealing widespread sex in the global ocean. Read all about it now in NatComm:

🌑🔬 La @univcadiz.bsky.social descubre que la oscura calma del fondo marino despierta la creación de moléculas bioactivas: las diatomeas aumentan su producción de aldehídos poliinsaturados tras largos periodos sin luz

📄  Descubre más en https://f.mtr.cool/foygjhrnho

Time series of annual GISTEMP data from 1880 onwards with an estimate for 2025 based on Jan-Oct data showing that it will be cooler than 2024, but probably a little warmer than 2023.

Now that the Sept and Oct data are (belatedly) in, it looks like 2025 will be the second warmest year in the record (~80% probability). The last three years are in a class of their own.

A hydrozoa medusa from the family Eirenidae (I think).
#marineplankton 🦑

Las diatomeas, una caja de sorpresas químicas para sobrevivir en la oscuridad Las diatomeas, un ejemplo de éxito de supervivencia, generan unos compuestos químicos que les sirven para protegerse de depredadores y para comunicarse entre ellas. Estudios recientes demuestran que s...

Un estudio de la @univcadiz.bsky.social ha revelado un aspecto de las #diatomeas desconocido hasta ahora: ¿cómo aprovechan la oscuridad? Nos lo cuentan dos de sus autores @juanrdguezmarq.bsky.social y Ana Bartual:

Me hace mucha ilusión poder compartir un trocito de nuestra investigación más allá de lo puramente académico.

Gracias a @es.theconversation.com por darnos el altavoz y la oportunidad.

¡Espero que lo disfrutéis!😄

🐟Nuevo trabajo de Juan Rodriguez  y su equipo, titulado: Darkness modulates polyunsaturated aldehyde production in two coastal diatoms. 

#diatomeas #investigación #divulgación #INMAR

Las diatomeas, una caja de sorpresas químicas para sobrevivir en la oscuridad Las diatomeas, un ejemplo de éxito de supervivencia, generan unos compuestos químicos que les sirven para protegerse de depredadores y para comunicarse entre ellas. Estudios recientes demuestran que s...

theconversation.com/las-diatomea...

Coral collapse signals Earth's first climate tipping point The global die-off of coral reefs signals a critical shift in Earth’s climate system with global environmental consequences along with economic ones.

Check out this article on science news: www.sciencenews.org/article/cora...

Exceedance of limits with high probability (≥ 80 % of the CMIP6 models) in the near-term (2021–2040), mid-term (2041–2060) and long-term (2081–2100) periods under (left) SSP1-2.6 (Low GHG emission, CO2 emissions cut to net zero around 2075), (right) SSP5-3.4-OS and (middle) SSP5-8.5 (very high GHG emissions, CO2 emissions triple by 2075) scenarios.

How perturbed does the planet need to get for ecological systems to exceed their limits to survive? It depends on the parameter we look at. Some (like sea ice extent) are still at risk even under low-emissions scenarios. In high emissions - everything's red. 🧪
Link: bg.copernicus.org/articles/22/...

Silvana Estrada: Tiny Desk Concert Silvana Estrada's powerful, yet elegant voice finds a way to bend wounds to her will and become whole.

Silvana Estrada's powerful, yet elegant voice finds a way to bend wounds to her will and become whole. n.pr/4oat8DP

What Jane Goodall taught me about bones, loss and not wasting anything A personal reflection recalls Jane Goodall’s quiet pragmatism, her deep bond with Gombe’s chimps and the scientific legacy of her skeletal collection.

Check out this article on science news: www.sciencenews.org/article/jane...

"… Goodall’s … is a story of genuine scientific curiosity, determination, and respect for nature and humanity …" H. Holden Thorp, Editor-in-chief, Science journals

Jane Goodall has died at the age of 91.

In 2020, Goodall spoke with Science Editor-in-Chief H. Holden Thorp for a #ScienceEditorial reflecting on the 60th anniversary of her arrival in Gombe to study wild chimpanzees. Read more: https://scim.ag/472Chb8

Muere la etóloga británica Jane Goodall a los 91 años Revolucionó la ciencia desde los sesenta con sus métodos innovadores y fascinantes descubrimientos sobre los chimpancés salvajes

🔴 ÚLTIMA HORA | Muere la etóloga y primatóloga británica Jane Goodall a los 91 años social.elpais.com/wmfcr4

River turbulence can push toxic pollutants into the air Levels of hydrogen sulfide gas soared near a raging section of the Tijuana River in San Diego, exposing residents to potentially harmful air pollution.

Check out this article on science news: www.sciencenews.org/article/rive...