Colors of the ocean: Changes in the Anthropocene

Changes in the color of the ocean reflect how changes in Earth’s climate are transforming plankton ecosystems. Collecting data on both surface and underwater coloration is essential to monitoring the health of marine ecosystems across the ocean. Variations in ocean surface color, measured by satellites, hold information about the composition of plankton ecosystems. These ecosystems are sensitive to ocean temperature and to the availability of nutrients and light in the ocean. In underwater habitats, monitoring coral bleaching events serves as an important means for evaluating the health of reef ecosystems. Yet certain challenges remain to be addressed for acquiring and processing data in a standardized and reliable fashion. Current and future policies can be centered around data acquisition and integration as well as efforts for universal collaboration and broader societal impacts.