A remarkable find in Maui! We identified the 96th hawksbill turtle in Hawaii and named him Cousteau, highlighting the importance of marine conservation efforts.

Fuel eating microbes, chemicals and fire: the race to discover new ways to contain Arctic oil spills As the rising number of vessels in the icy waters increases the risk of environmental disaster, scientists are scrambling to find potential solutions

Fuel eating microbes, chemicals and fire: the race to discover new ways to contain Arctic oil spills

Autoria: Claudia Auladell Quintana

📰🔬 Marine forests are declining along Spanish coasts, with losses of up to 80%

👉 Scientists from @ieo.es and #CEAB are calling on the public to help by contributing through the @obsdelmar.bsky.social platform 👀🌊

🔗 http://bit.ly/4thwgA1

The Fish Doorbell — The Fish Doorbell Did you spot a fish? Press the Fish Doorbell! This alerts our lock operator to let the fish through. The Fish Doorbell is in Utrecht, NL.

🚪🔔🐟 Here’s your reminder, the Netherlands’ fish doorbell is live!

One of my favorite citizen science projects 🧪🌊

Most endangered marine mammals face highest plastic risk Three quarters of marine mammals in the highest-risk category for plastic ingestion and entanglement are already classified as threatened

🌊 Three out of every four marine mammals in the highest-risk category for plastic ingestion and entanglement are already classified as threatened.

oceanographicmagazine.com/news/most-en...

Marine heatwaves ‘nearly double’ the economic damage caused by tropical cyclones - Carbon Brief Tropical cyclones that rapidly intensify when passing over marine heatwaves can become “supercharged”, increasing the likelihood of high economic losses

🌊 Marine heatwaves ‘nearly double’ the economic damage caused by tropical cyclones

www.carbonbrief.org/marine-heatw...

a, In the linear state, submesoscale frontal eddies cause alternating cross-shore eddy fluxes that accumulate to drain baroclinic energy from the mean cyclonic flow while feeding barotropic energy into it. The result is an intensification of the current over the slope. b, In the meandering state, the jet decelerates as it enters the trailing edge of the meander and accelerates as it leaves the leading edge, causing convergence then divergence, which drives opposing cross-shore eddy fluxes. The net effect of meanders is to drain barotropic energy from the mean anticyclonic flow while feeding baroclinic energy into it, lifting and broadening the current offshore. The net effect on the cyclonic side is the same as that of the frontal eddies. H, high; L, low. c,d, In the cross-section, the time-mean eddy temperature flux (c) and the time-mean eddy salinity flux (d) act to move heat and salt towards the core of the current. This is achieved by the presence of an eddy-driven secondary, or overturning, circulation with upwelling of cool waters onto the shelf and downwelling at the current core.

Climate change, as it turns out, intensifies ocean eddies (the swirling things that make currents). The eddies concentrate heat and salt towards the center of the current, which makes adjacent shelf seas cooler and more stratified. 🧪🌊

Link: https://www.nature.com/articles/s41558-026-02599-9​

Long-term heating differently impacts diversity and seasonal dynamics of prokaryotes and micro-eukaryotes in Baltic Sea coastal biofilm communities academic.oup.com/ismecommun/a... #jcampubs 🌊

New AI Approach Reveals Ocean Currents in Unprecedented Detail Scientists have developed a new method to measure ocean surface currents over large areas in greater detail than ever before.

🌊 Scripps Oceanography researchers developed an #AI approach that can spot patterns in satellite thermal imagery of the sea to reveal ocean currents in unprecedented detail. Learn how this advancement increases insights into ocean surface temperatures. ⤵️

Sensitivity of Cyanobacteria to Herbicides Commonly Used in Aquatic Systems: Implications for Controlling Harmful Algal Blooms Abstract. Water quality and eutrophication are major drivers of harmful cyanobacterial blooms. Issues arising from increased nutrient loads, poor water cir

Sensitivity of Cyanobacteria to Herbicides Commonly Used in Aquatic Systems: Implications for Controlling Harmful Algal Blooms url: academic.oup.com/etc/article-...

🌊California’s 2026 Coast and Ocean Assessment is out, and Scripps Oceanography scientists helped bring it to light! Their work helped document ocean health and guide future climate resilience across our coast. Learn more from the California Ocean Science Trust report: https://bit.ly/4tkB8UD

Upwelling, the Ocean’s Engine Beneath California’s Waters How cold, nutrient-rich water rises from the deep to fuel marine life, fisheries, and one of the most productive coastlines on Earth

Cold water rising from the deep might be the single most important force shaping life off California’s coast. It fuels plankton blooms, drives fisheries, and quietly powers one of the most productive marine ecosystems on Earth. This is upwelling. californiacurated.substack.com/p/upwelling-... 🌊

Diatoms–copepods: An evolutionary arms race Diatoms and copepods are dominating and diverse groups of phytoplankton and zooplankton, respectively. Diatoms account for 25–40% of ocean primary production, and their main predators, copepods, are ...

Our review on the evolutionary arms race between copepods and diatoms is now published in @aslo.org #ASLO_LO 🌊
We discuss the most common defense mechanisms found in diatoms, and how copepods have evolved to overcome them. Check it out #openaccess
aslopubs.onlinelibrary.wiley.com/doi/10.1002/...

I'm painfully aware that for most people, "the sea" goes only about as far as they can see from the beach.
But there is much more of it.
And with the way things are going, we're going to be able to learn and protect a lot less of it in the coming years. 🌊

Record high ocean temperatures off southern California raise fears of prolonged marine heatwave Researchers warn the high-pressure conditions could disrupt marine life and ecosystems if it continues

🌊 Record high ocean temperatures off southern California raise fears of prolonged marine heatwave

www.theguardian.com/us-news/2026...

Warm water, starvation causing La Jolla seabird deaths Warm ocean temps are causing seabird deaths in La Jolla. An expert explains what it means for the region.

📈 Higher ocean temperatures are leading to an increased number of seabird deaths, not just here in La Jolla, but across California coastal communities, according to Scripps Oceanography scientists. 🌡️ 🌊
lajolla.ca/news/wildlife/seabird-de...

Behind the Fleet — Mapping Global Network of Service Providers | Oceana Behind every distant-water fishing vessel is a support system of service providers whose decisions influence how international fishing is financed, operated, and overseen.

New work from Oceana on all those industries that enable distant water fishing. Who finances the vessels? Registers & insures them? Provides their crew & comms? Are they useful levers to better control DWF practices? #fisheries #highseas 🦑🌏🌊🧪🎣🪸🐟

oceana.org/reports/behi...

Climate change may produce “fast-food” phytoplankton As sea surface temperatures rise over the next century, phytoplankton in polar regions will adapt to be less rich in proteins, heavier in carbohydrates, and lower in nutrients overall, according to a…

🌊 From the smallest organisms to top predators, ocean life depends on phytoplankton.

But new research from #URIGSO's Keisuke Inomura & colleagues shows climate change could make them less nutritious, potentially reshaping marine food webs.

➡️ Read more from MIT: news.mit.edu/2026/climate...

Our project #GES4SEAS has made, with childrens in school, an amazing comic book, with several stories for #OceanLiteracy
It is freely available in 15 languages!
#MarineEcology
#Research

zenodo.org/records/1932...

Thank you so much for your kind words, Kit! It was truly wonderful meeting you and talking to you.

Call for papers for Contaminants, Environment, and Society. Group of people collecting samples along a riverbank surrounded by trees for community contaminant research.

Our first ever collection invites research showing how communities, including Indigenous communities, lead contaminant research for health and policy impact.

Submit before 30 May, 2026 ▶️ https://ow.ly/nbtx50Yfg6l

#Contaminants #IndigenousKnowledge #MicroPlastics #Ecotoxicology

Brilliant ocean news!

60,000 oysters are now in the Firth of Forth - double the initial goal! Oysters can stabilise the seabed, store carbon and boost biodiversity. So this is a big win wildlife and ecosystems. 🦪

This is thanks to years of hard work from partners, communities and supporters. 👏

New Study Highlights Success in Open-Coast Seagrass Restoration New research led by scientists at UC San Diego’s Scripps Institution of Oceanography is shining a spotlight on one of the ocean’s most overlooked habitats: seagrass.

A restoration success in the more challenging open coast is my news to me good news for Mar 25 #OceanOptimism #EarthOptimism today.ucsd.edu/story/new-st...

Taxonomic composition and ecophysiology of resident bacteria associated with marine phytoplankton - Nature Ecology & Evolution This study reveals that some bacteria living in the phycosphere of marine diatoms and dinoflagellates are host-specific with genomic functions matching their hosts, while some termed as ‘foundation’ b...

Taxonomic composition and ecophysiology of resident bacteria associated with marine phytoplankton www.nature.com/articles/s41... #jcampubs 🌊

This High School Student Invented a Filter That Eliminates 96 Percent of Microplastics From Drinking Water
www.smithsonianmag.com/innovation/t...

Earth being ‘pushed beyond its limits’ as energy imbalance reaches record high State of the Climate report finds Earth’s energy has moved dangerously out of balance, with oceans absorbing vast majority of trapped heat

Some climate change facts:

2015–2025 = hottest decade observed

🌊 ~90% of excess heat stored in the oceans

Heat gain ≈ 18× global energy use

Rate is accelerating, not stabilizing

This isn’t just warming; it’s a system moving further out of equilibrium

www.theguardian.com/environment/...

Rivers and tidal currents keep 80% of microfibers from reaching oceans, study suggests Every time we do a load of laundry, tiny fibers of polyester escape from our clothes and slip down the drain. These microfibers, so small they can be invisible to the naked eye, are among the most com...

🌊 Rivers and tidal currents keep 80% of microfibers from reaching oceans, study suggests

phys.org/news/2026-03...

Coffee & Geography 6x04 Marvee Sambajon (Philippines) documentary producer, marine sci-comm, crochet YouTube video by Kit Marie Rackley (Geogramblings)

The interviewer has become the interviewee. Catch me at Coffee and Geography Podcast Season 6 Episode 4. You can watch the episode on YouTube at youtu.be/NC0QhMazK0U or search for Coffee and Geography wherever you get your podcasts.

My first podcast guesting. I am horrible at talking about myself but I enjoy talking about the work I did. I surely lived up to the rambling part of the podcast name. Thank you so much to @geogramblings.com for inviting me to the pod. Thank you for your kind words. I really enjoyed talking to you.

Come join me, @marveeambi.bsky.social and crochet Totoro! 😉