A Five-Year, In Situ Growth Study on Shallow-Water Populations of the Gorgonian Octocoral Calcigorgia spiculifera in the Gulf of Alaska

Colonies of the holaxonian Calcigorgia spiculifera were tagged beginning in 1999 at three sites in Chatham Strait, Southeast Alaska, using scuba and their growth measured annually for up to 5 years. Colonies were video recorded, and computer image analysis tools provided calibration of video images for measuring the length of several branches. 

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West Coast Wraps Up Exciting 4-Year Deep-Sea Coral Initiative

The effort has greatly improved our understanding of deep-sea corals and sponges off the coasts of California, Oregon, and Washington, particularly within na

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Summer Expeditions will Explore Widespread Deep-Sea Coral and Sponge Communities in Alaska

In 2023, a series of expeditions will help NOAA and partners to better understand the diversity and extent of ecologically important seafloor communities in

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Deep-Sea Coral Research to Gain New Understanding of Alaska Fish Habitat

A multiyear, international study is using innovative technology to shed light on what red corals need to reproduce and sustain their populations, and how the