What Happened
Scientists from Arizona State University in the US used satellite images and artificial intelligence to create the first high-resolution map of the global extent of seagrass.
According to the study, published recently in the journal Nature, the team identified 148,506 km² of seagrass worldwide, which corresponds to approximately 57,340 square miles, a combined area larger than England.
Most of these seagrass areas are located in subtidal areas, and nearly 70% of the global extent of seagrass is concentrated in just five countries.
However, only 21% of these areas are within protected marine areas, which highlights the need for broader conservation efforts.
Why It Matters
Seagrasses are the only species of flowering plant in the ocean and form vast meadows in shallow waters.
In addition to being habitats for many marine species, these meadows are also crucial carbon sinks that can absorb CO2 35 times faster than terrestrial forests.
They also protect coastlines and filter pollutants in the water, making them essential for the health of the ocean and the planet as a whole.
However, seagrass ecosystems face threats due to pollution, global warming, and habitat destruction, which can have devastating consequences for marine biodiversity and ocean health.
The Mechanism/Science Behind It
The use of satellite images and artificial intelligence allowed scientists to map the extent of seagrass with unprecedented precision.
This was made possible by the development of machine learning algorithms that can analyze large datasets of satellite images and identify specific patterns and characteristics of seagrass.
In addition, the combination of satellite data with field information allowed scientists to validate the accuracy of the maps and improve their understanding of seagrass ecosystems.
Bigger Context
Mapping seagrass is an important step towards conserving these crucial ecosystems.
With the help of these maps, scientists and natural resource managers can identify areas of seagrass that need protection and develop effective strategies to conserve them.
Furthermore, the study highlights the importance of considering seagrass as a key component of ocean and planetary health, and working to protect and restore it worldwide.
What Happens Next
Now that the high-resolution map of seagrass is available, scientists and natural resource managers can begin working together to develop conservation and restoration plans for these ecosystems.
This may include creating protected marine areas, restoring degraded habitats, and educating the public about the importance of seagrass for ocean and planetary health.
Additionally, the study highlights the need to continue monitoring the health of seagrass and adjusting conservation strategies as new information becomes available.
Conclusion
Mapping seagrass is an important step towards conserving these crucial ecosystems.
With the help of these maps, scientists and natural resource managers can work together to protect and restore seagrass worldwide, and ensure the health of the ocean and the planet for future generations.
Source / Reference
Original URL: https://news.mongabay.com/2026/07/scientists-use-ai-to-produce-first-high-resolution-map-of-global-seagrass-extent/
Source Name: Mongabay