The theme of the #UNESCO celebration for this year is Trust, Transformation, and Tomorrow: The Science We Need for 2050. We deserve a world at peace, and science is the key to making it happen! Would you join the change?

Agglutinated forams (forams that make their shells by adding or agglutinating sorrounding stuff) make their shells by gluing things they find around them: sand, minerals, and skeletons of other organisms! This includes other forams, sponge spicules, even radiolaria! 😱😱

*In addition, this is happening with intense ocean warming seen in the Atlantic in weak AMOC times. In theory, ocean warming makes oxygen less soluble & should decrease, BUT the results show that circulation is the main oxygen control here! Full study: www.nature.com/articles/s41...

In summary, we infer that a weak AMOC-driven heat transport decrease led to a strong temperature gradient between the tropical & NAtlantic, that accelerated subsurface circulation, bringing more oxygen to the OMZ we studied. Did you learn something new? Follow us and share! 🌊🐚🔬🤔

Findings: with a slow AMOC there was + oxygen, suggesting a stronger subsurface circulation that brought + oxygen to the OMZ🧐Since winds' strength depends on temperature & air pressure, we calculated the sea surface temperature diff. between tropical & NAtlantic: they were larger with a slow AMOC 😱

AMOC slowed 2 times in the last 27k years, and to understand what happens to subsurface circulation with this slowdown, the authors reconstructed oxygen changes using benthic forams distribution in the OMZ off the Senegal coast.

@pages-ipo.bsky.social @pages-ecn.bsky.social @cecior.bsky.social @sofigerina.bsky.social @geolatinas.bsky.social

Ok.. maybe nor skeletons, but they definetly use fossil remains of dead organisms to make their shell or is it ... their House of Horrors! 😱😱😱🤣 and you? You have any Science horror story?

Agglutinated forams (forams that make their shells by adding or agglutinating sorrounding stuff) make their shells by gluing things they find around them: sand, minerals, and skeletons of other organisms! This includes other forams, sponge spicules, even radiolaria! 😱😱

Pretty cool, right? Can you think of other shell features or clues that could serve as proxies? Share your ideas in the comments!
Post by @sofigerina.bsky.social @dharmarx.bsky.social sebastiangarrido
#pastoceanoxygenation #scicomm #paleoclimate #proxies #foraminifera #timemachines

Scientists study how micro-organisms such as foraminifera respond to today’s ocean conditions, then use those patterns to infer what oceans were like thousands or even millions of years ago. By comparing past and present, they can reconstruct Earth’s climate history.

¿Aprendiste algo nuevo o tienes preguntas? déjala en los comentarios! Ilustración y textos por María Yolanda Nuñez; textos y edición por Sofía Barragán Montilla @sofigerina.bsky.social
#pastoceanoxygen #scicomm #bilingual #paleoecology #oxygen #marinescience #paleoscience #darkoxygen #paperalert

Estos hallazgos podrían cambiar lo que sabemos sobre la vida marina y cómo el océano abisal se mantiene oxigenado. Impresionante, ¿verdad?

El estudio se hizo en una zona cubierta de nódulos polimetálicos, por lo que los autores plantean que el alto voltaje de los nódulos dio lugar a la electrólisis, un proceso por el cual se descomponen las moléculas de agua en oxígeno e hidrógeno.

Investigadores instalaron cámaras bentónicas en el fondo marino abisal del Océano Pacífico para cuantificar el oxígeno en un periodo de tiempo y ¡los datos muestran más oxígeno del esperado! lo que sugiere que en las profundidades del océano también se produce O₂