📢 New paper out! 🌊 Why do some coral reefs survive marine heatwaves better than others? The answer lies far beyond the reef itself. Natural coral reef refuges are dynamic. Their cooling depends on tropical climate modes (ENSO,IOD), shaping coral resilience in a warming ocean Read more: rdcu.be/fq0ml

Tropical climate modes control strength and distribution of thermal stress mitigation in a coral reef refugia

Scientific Reports - Tropical climate modes control strength and distribution of thermal stress mitigation in a coral reef refugia

rdcu.be

#SPP2299 phase 1 coordinator @thomasfelis.bsky.social presenting the @dfg.de priority programme at the 3rd Taiwan International Symposium on Coral Reefs (TISCR 2026) in Kaohsiung today @marumunibremen.bsky.social

World’s Fourth Mass Coral Bleaching Event Likely Ended in 2025 www.nesdis.noaa.gov/news/worlds-...

World’s Fourth Mass Coral Bleaching Event Likely Ended in 2025

NOAA experts have determined that the fourth global coral bleaching event likely concluded in mid-2025 following unprecedented heat stress across the world’s coral reefs.

nesdis.noaa.gov

The 3rd Taiwan International Symposium on Coral Reefs (TISCR 2026) has just begun. SPP 2299 will be giving a presentation this afternoon in sunny Kaohsiung

#SPP2299 presented today at JpGU-AGU Joint Meeting 2026 #JpGU2026 in Chiba, Japan - including some research highlights from Phase 1

New study by #SPP2299 researcher Takaaki Watanabe published in open-access Geophysical Research Letters: agupubs.onlinelibrary.wiley.com/doi/10.1029/... "Coral Reefs in the Indonesian Seas Threatened by Heat and Cold Stress" @agu.org @uni-kiel.de #AGUPubs #CAU #UniKiel

Coral Reefs in the Indonesian Seas Threatened by Heat and Cold Stress

In the Indonesian Seas, cold stress events caused by positive Indian Ocean Dipole are stronger and longer-lasting than heat stress events Heat stress events in the Indonesian Seas, triggered by E...

agupubs.onlinelibrary.wiley.com

New blog about #SPP2299 early career researcher Diana Diers from @goetheuni.bsky.social: "What can coral geochemistry reveal about past climate variability?" Check it out on our website: www.spp2299.tropicalclimatecorals.de/2026/05/06/w... www.spp2299.tropicalclimatecorals.de

#SPP2299 early career researcher @hcamelia.bsky.social is presenting the currently longest monthly coral proxy time series of temperature and hydrology for the northeastern Indian Ocean, back to the late 18th century, at #EGU26 www.spp2299.tropicalclimatecorals.de @marumunibremen.bsky.social

#SPP2299 presented today at #EGU26 in sunny Vienna

New blog post on our website highlighting the #SPP2299 EOCENE project at Leipzig University: From Fossil Corals to Climate Data: Methods and Insights share.google/0jb2vokX5qTv...

New research by #SPP2299 researcher Andrew Dolman in @commsearth.nature.com on signal and noise in coral records Strontium to calcium ratio and oxygen isotopic coral records can exaggerate past decadal tropical climate variability | Communications Earth & Environment share.google/vv3fuTuzLZ3l...

Strontium to calcium ratio and oxygen isotopic coral records can exaggerate past decadal tropical climate variability - Communications Earth & Environment

Strontium to calcium ratio and oxygen isotopic records from single corals contain a strongly autocorrelated non-climate noise component, which can inflate reconstructed temperature variability, according to analyses of coral records and sea surface temperature data.

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New blog on our website about the @pages-ipo.bsky.social CoralHydro2k Seawater δ¹⁸O Database, an initative lead by Alyssa Atwood, with contribution by #SPP2299. Check it out! Unlocking Hidden Stories of the Ocean: A New Global Database of Seawater Oxygen Isotopes share.google/gCoxSflxgdMV...

Unlocking Hidden Stories of the Ocean: A new study introduces a global database of oxygen isotopes in seawater. The researchers have compiled measurement data into a unified, freely accessible, and standardized resource ➡️ www.marum.de/en/Unlocking...

The #SPP2299 team @marumunibremen.bsky.social has contributed to an international initiative, a database of oxygen and hydrogen isotope measurements in seawater for research into the global water cycle and climate change @jannhargreaves.bsky.social @thomasfelis.bsky.social @pages-ipo.bsky.social

The PAGES CoralHydro2k Seawater δ18O Database: a FAIR-aligned compilation of seawater δ18O data to uncover “hidden” insights from the global ocean

Abstract. The stable isotope values of seawater (δ18O and δ2H) provide valuable information on the exchange of water between the ocean, atmosphere, and cryosphere and on ocean mixing processes. As suc...

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Hana Camelia, PhD researcher in the DFG Priority Programme "Tropical Climate Variability & Coral Reefs" #SPP2299, successfully defended her doctoral thesis at the University of Bremen today. Hana - we are so proud of you!

New blog on our website! Check it out! How Life at Sea Prepared Luisa Meiritz for Studying Coral Bleaching share.google/pMh2OSHXN5r7... @geomarkiel.bsky.social

The DFG Priority Programme “Tropical Climate Variability & Coral Reefs” (SPP 2299) has released a new video highlighting the programme’s current research activities and outlining upcoming scientific priorities. Check out the new video on our YouTube channel: youtu.be/PUQUnIhgVEk?...

SPP 2299 Research & Future Directions

YouTube video by Tropical Climate Variability & Coral Reefs

youtu.be

[ENSO Webinar Series] We are pleased to invite you to join us for the first webinar of the CLIVAR Pacific Region Panel’s newly launched ENSO webinar series: January 22, 2026 | 07:00 UTC GoTo Meeting – meet.goto.com/198838725 Scan the QR code to sign up Check more: www.clivar.org/events/enso-...

Check out our latest work, led by Jon Jung, Ph.D. student in the @amglab.bsky.social at @mpic.de: www.nature.com/articles/s41... Here we show that the supply of excess phosphorous from accounts for the majority of observed Sargassum variability since 2011. 🌊 🧪 #Paleosky #CoralReefs

Equatorial upwelling of phosphorus drives Atlantic N2 fixation and Sargassum blooms - Nature Geoscience

High near-surface nitrogen-fixation rates that promoted the recent growth of the Great Atlantic Sargassum Belt were tied to greater upwelling of phosphorus from the equatorial Atlantic, according to c...

nature.com

The driver of Sargassum blooms in the Atlantic Ocean: Upwelling of phosphorus-rich deep water promotes an N-fixing symbiont of the Sargassum algae giving it a competitive advantage. 👉https://tinyurl.com/br5drzux #SargassumBlooms #ClimateResearch #MarineScience #MPIChemie #EnvironmentalScience 🌎

The driver of Sargassum blooms in the Atlantic Ocean

tinyurl.com

Excited to share our work using #aDNA to reconstruct #Symbiodiniaceae dynamics from #coral cores. Led by José Grillo, @jessireichert.bsky.social, @nessatir.bsky.social part of #TaraPacific expedition & supported by #SPP2299 @climatereefs.bsky.social doi.org/10.1111/gcb....

Coral Skeletal Cores as Windows Into Past Symbiodiniaceae Community Dynamics

Stony corals rely on their association with symbiotic algae for their growth and health. However, corals can lose these symbionts in response to heat stress and bleach, but they can also recover from...

doi.org

Justus-Liebig-Universität Gießen (JLU)@jlugiessen.bsky.social · 9mo ago

#Coral skeletons as windows into the past: How environmental conditions influence microalgae and coral communities. Paper by #JLUGiessen biologist @marenziegler.bsky.social et al. in @globalchangebio.bsky.social www.uni-giessen.de/en/about/pre...

Thanks to everyone who joined our Meeting & Status Seminar 2025 - It was such a mix of minds and experiences. It was not just about presentations - It was about connecting ideas, perspectives, and people. Events like this remind us why we do research: To explore, to question, and to grow - Together

Next talk by Mandy Freund @climatefreund.bsky.social about "ENSO during the past millennium"

Next talk by Iliana Baums @ibaums.bsky.social on "Reconstructing historical population dynamics of corals" @hifmb.de @marumunibremen.bsky.social

Ben Henley @benhenley.bsky.social kicking off the 3rd day of the #SPP2299 "Meeting & Status Seminar 2025" with a keynote on "Heighest ocean heat in four centuries places Great Barrier Reef in danger" @marumunibremen.bsky.social @dfg.de

Ben Henley @benhenley.bsky.social kicking off the 3rd day of the #SPP2299 "Meeting & Status Seminar 2025" with a keynote on "Heighest ocean heat in four centuries places Great Barrier Reef in danger" @marumunibremen.bsky.social @dfg.de

Last keynote for today by Sara Sanchez on "Data assimilation with coral d18O"

Ed Hathorne @edhathorne.bsky.social advertising the new coral reference material "Ishi-B SPP2299" Find out more at www.spp2299.tropicalclimatecorals.de/ishi-b-spp22...

First keynote of today by Caroline Ummenhofer on "Indo-Pacific climate variability of the last millennium"

The afternoon session is starting with an Invited Early Career Researcher Talk by Xuefei Chen from Guangzhou Institute of Geochemistry on "Paleoclimate and biological responses from South China Sea corals"