January 21, 2022 — Escalating ocean temperatures stemming from climate change are devastating the world’s tropical coral reefs. In response to the stress, corals, which are animals, sometimes unceremoniously jettison the algae that live within them. That expulsion drains the color from the reefs in what’s known as bleaching. In the severest cases, it can kill the coral, which need the algae to provide them with nutrients, oxygen and waste management.
At the same time, millions of people in the tropics eat fish that live on these reefs. And today, the widespread bleaching of tropical reefs, which is expected to continue as the Earth heats up, has thrown into question how those fisheries and the communities that depend on them for sustenance will respond.
Now, a new study published Jan. 6 in the journal One Earth has found that in certain circumstances, critical nutrients for human development found in reef fishes remain available even after mass bleaching has occurred.
“An important message here is that climate-impacted reefs can still provide some important ecosystem services, and therefore should still be considered in management plans and conservation,” said Camille Mellin, a quantitative ecologist at the University of Adelaide in Australia, who was not involved in the study.
Read the full story at Mongabay