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National Coral Reef Monitoring Program: Calcification rates of crustose coralline algae derived from calcification accretion units (CAUs) deployed across American Samoa

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2022-08-16T00:00:00.000+00:00
The calcification rate data in this collection are from Calcification Accretion Units (CAUs) that have been retrieved and replaced at existing, long-term monitoring sites during NOAA Pacific Islands Fisheries Science Center (PIFSC), Coral Reef Ecosystem Program (CREP) led NCRMP missions, in accordance with protocols developed by Price et al. 2012. There are typically (but not always) five CAU sites established at each location CREP visits, with five units deployed at each site. This study provides information about spatial patterns of algal calcification and accretion rates and serves as a basis for detecting changes associated with changing seawater chemistry due to ocean acidification. In conjunction with benthic community composition data (archived separately), the calcification rates will aid in determining the magnitude of how ocean acidification affects coral reefs in the natural environment.

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0159149 0233019 CALCIFICATION laboratory analysis scale laboratory analyses NOAA Ship Hi'ialakai Coral Reef Ecosystem Program Coral Reef Ecosystem Program NOAA Pacific Islands Fisheries Science Center Coral Reef Conservation Program (CRCP) CORAL REEF STUDIES National Coral Reef Monitoring Program (NCRMP) Pacific Reef and Assessment Monitoring Program (Pacific RAMP) US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) Fagatele Bay National Marine Sanctuary National Marine Sanctuary of American Samoa Rose Atoll Marine National Monument South Pacific Ocean oceanography CRED CREP Coral Reef Ecosystem Division Coral Reef Ecosystem Program PIFSC Pacific Islands Fisheries Science Center DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce 1221 409 587 743 C204 Pacific Reef Assessment and Monitoring Program (Pacific RAMP): Biennial monitoring for the US Pacific Islands and Atolls National Coral Reef Monitoring Program (NCRMP) Ocean Acidification - Quantification of Calcification and Accretion Rates of Corals and Crustose Coralline Algae across the Pacific Ocean Pacific Reef Assessment and Monitoring Program: Monitoring coral reef ecosystems of the US Pacific Islands and Atolls RAMP Reef Assessment and Monitoring Program > Numeric Data Sets > Calcification Rate EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat EARTH SCIENCE > Biosphere > Vegetation > Algae > Algal Cover EARTH SCIENCE > Biosphere > Vegetation > Algae > Algal Growth > Calcification Rate EARTH SCIENCE > Biosphere > Vegetation > Algae > Calcareous Macroalgae EARTH SCIENCE > Biosphere > Vegetation > Algae > Crustose Coralline Algae EARTH SCIENCE > Biosphere > Vegetation > Algae > Encrusting Macroalgae EARTH SCIENCE > Biosphere > Vegetation > Algae > Fleshy Macroalgae EARTH SCIENCE > Biosphere > Vegetation > Algae > Reef Monitoring and Assessment EARTH SCIENCE > Biosphere > Vegetation > Algae > Reef Monitoring and Assessment > Calcification Accretion Unit (CAU) EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment EARTH SCIENCE > Oceans > Ocean Chemistry > Calcification EARTH SCIENCE > Oceans > Ocean Chemistry > Carbonate Chemistry EARTH SCIENCE > Oceans > Ocean Chemistry > Ocean Acidification EARTH SCIENCE > OCEANS > COASTAL PROCESSES > CORAL REEFS Ocean Acidification Calcification Plate Settling Plate calcification accretion unit (CAU) Ships Hi'ialakai (call sign: WTEY, ICES code: 33HL, 2004-) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ofu Island (14S169W0013) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Olosega Island (14S169W0014) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Rose Atoll (14S168W0001) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Swains Atoll (11S171W0001) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ta'u Island (14S169W0012) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016) COUNTRY/TERRITORY > United States of America > American Samoa > Ofu Island > Ofu (14S169W0002) COUNTRY/TERRITORY > United States of America > American Samoa > Olosega Island > Olosega (14S169W0016) OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000) OCEAN BASIN > Pacific Ocean > American Samoa > Rose Atoll (14S168W0001) OCEAN BASIN > Pacific Ocean > American Samoa > Swains Atoll (11S171W0001) OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016) OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu (14S169W0002) OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu Island (14S169W0013) OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega (14S169W0016) OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega Island (14S169W0014) OCEAN BASIN > Pacific Ocean > Manu'a Group > Ta'u Island (14S169W0012) OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > SAMOA Triennial C1RTPG KY59GC

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