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

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2022-09-08T00:00:00.000+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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0157722 0175167 0255269 CALCIFICATION laboratory analysis chemical laboratory analyses water chemistry NOAA Ship Hi'ialakai NOAA Ship Oscar Elton Sette NOAA Ship Rainier Coral Reef Ecosystem Program NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division Coral Reef Ecosystem Program NOAA Pacific Islands Fisheries Science Center NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division 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) North Pacific Ocean oceanography CRED CREP Coral Reef Ecosystem Division Coral Reef Ecosystem Program ESD Ecosystem Sciences Division PIFSC Pacific Islands Fisheries Science Center DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, 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 CAU Calcification Plate Settling Plate calcification accretion unit calcification accretion unit (CAU) Ships Hi'ialakai (call sign: WTEY, ICES code: 33HL, 2004-) OSCAR ELTON SETTE (call sign: WTEE, ICES code: 33OC, 2003-) RAINIER (call sign: WTEF, ICES code: 315R, 1968-) COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii Island (19N155W0003) COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Kauai Island (22N159W0001) COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Molokai Island (21N157W0001) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > French Frigate Shoals (24N166W0001) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Kure Atoll (28N178W0001) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Lisianski Island (25N173W0001) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Northwestern Hawaiian Islands (28N178W0000) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Oahu (21N157W0003) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Pearl and Hermes Reef (27N176W0001) COUNTRY/TERRITORY > United States of America > Hawaii > Kauai > Niihau Island (21N160W0001) COUNTRY/TERRITORY > United States of America > Hawaii > Maui > Lanai Island (20N156W0002) COUNTRY/TERRITORY > United States of America > Hawaii > Maui > Maui Island (20N156W0004) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii Island > Hawaii Island (19N155W0003) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Kauai Island > Kauai Island (22N159W0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Lanai Island > Lanai Island (20N156W0002) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Maui Island > Maui Island (20N156W0004) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Molokai Island > Molokai Island (21N157W0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Niihau Island > Niihau Island (21N160W0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Oahu (21N157W0003) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands (28N178W0000) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > French Frigate Shoals (24N166W0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > Kure Atoll (28N178W0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > Lisianski Island (25N173W0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > Pearl and Hermes Reef (27N176W0001) OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN MHI Main Hawaiian Islands NWHI Northwestern Hawaiian Islands Triennial 695DNL 6W2BRB L0TG23

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