Plankton may be unable to weather rising ocean temperatures
Plankton, the tiny creatures forming the foundation of ocean life, are facing a bleak future as warming seas threaten their survival, according to two new studies.
Dino Grandoni reports for The Washington Post.
In short:
- Two studies published in Nature reveal that plankton populations, essential to marine ecosystems, are declining due to warming oceans and rising acidification.
- Researchers found plankton like foraminifera, which anchor ocean food webs, could drop by over 10% if global temperatures rise by 3°C, disrupting food chains that support fish and larger marine animals.
- Plankton also play a key role in climate regulation by trapping carbon in their shells, which sink to the seafloor, underscoring the wide-reaching impacts of their decline.
Key quote:
“The change is very, very huge, very fast — and it will continue being fast, we think.”
— Sonia Chaabane, plankton ecologist
Why this matters:
The loss of plankton threatens marine biodiversity and food security for millions relying on the ocean, while also compromising the ocean's role in capturing carbon and moderating climate change. The effects could ripple across entire ecosystems, potentially reducing fish populations and destabilizing the oceanic food chains that ultimately sustain us all.
Read more: Surprise! Unexpected ocean heat waves are becoming the norm.
