Research surveys monitor coral reef ecosystems and assess impacts from threats including climate change, ocean acidification, disease, and land-based sources of pollution. This year, NOAA scientists will conduct these surveys in American Samoa and the Pacific Remote Island Areas.
During expeditions this spring and summer, scientific divers will estimate the number of reef fish and measure corals around the islands. They will also collect thousands of photographs to create three-dimensional images of the reefs. The abundance and distribution of reef fish and coral reef organisms show us the conditions of the ecosystems. Over time, we can see how they have changed—an important part of reef conservation in the region. Researchers will also measure aspects of the environment to assess the status of ocean acidification and warming on coral reef health.
The team aboard the Rainier will also collect high resolution bathymetric data to update nautical charts, improve maritime safety, and characterize seabed habitat.
Island Survey Locations
American Samoa
- Tutuila
- Motu o Manu (Rose Atoll)
- Taʻū
- Ofu
- Olosega
- Swains Island
- Palmyra Atoll
- Kingman Reef
- Jarvis
- Howland
- Baker
- Johnston Atoll
Scientists will observe the number and size of reef fish and measure coral size and health. These ecosystems are packed full of a variety of plants and animals. They provide coastal protection, food, and livelihoods to millions of people worldwide, but threats to coral reefs and marine ecosystems are growing.
Scientists aboard the Rainier will also measure water temperature, salinity, carbonate chemistry, and other physical characteristics of the coral reef environment like coral growth and erosion. Using all these measurements, researchers can assess the potential early effects of ocean acidification on corals.
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