National Coral Reef Monitoring Program: Water Chemistry of the Coral Reefs in the Hawaiian Archipelago from Water Samples collected in 2013 (NCEI Accession 0157714)

• Main Author: Thomas Oliver
• Format: Dataset
• Language: unknown
• Published: NOAA NCEI Environmental Data Archive 2017
• Subjects: DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce; DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce; 0157714; 157714; CONDUCTIVITY; DEPTH - OBSERVATION; DISSOLVED INORGANIC CARBON (DIC); HYDROSTATIC PRESSURE; SALINITY; TOTAL ALKALINITY (TA); WATER DENSITY; WATER TEMPERATURE; CTD; Niskin bottle; in situ; laboratory analyses; HI'IALAKAI; Coral Reef Conservation Program (CRCP); CORAL REEF STUDIES; National Coral Reef Monitoring Program (NCRMP); Pacific Reef and Assessment Monitoring Program (Pacific RAMP); North Pacific Ocean; oceanography; EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY; EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON; EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE; EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE; EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY; EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY; EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY; CTD > Conductivity, Temperature, Depth; NISKIN BOTTLES; SHIPS; OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN; Pacific; Ocean acidification
• Online Access: https://search.dataone.org/view/{76CDB0DD-411C-4DB3-83AD-04C4D0DEABC5}

Water samples are collected and analyzed to assess spatial and temporal variation in the seawater carbonate systems of coral reef ecosystems in the Hawaiian and Mariana Archipelagos, American Samoa, and the Pacific Remote Island Areas as part of the NOAA National Coral Reef Monitoring Program (NCRMP). Laboratory experiments reveal calcification rates of crustose coralline algae (CCA) are strongly correlated to seawater aragonite saturation state. Predictions of reduced coral calcification rates, due to ocean acidification, suggest that coral reef communities will undergo ecological phase shifts as calcifying organisms are negatively impacted by changing seawater chemistry. The data described here are from water samples collected at existing, long-term monitoring sites during NOAA Pacific Islands Fisheries Science Center (PIFSC), Coral Reef Ecosystem Program (CREP) led NCRMP mission around the Hawaiian Archipelago in 2013. Two water samples are typically collected from each site—one at the reef and one at the surface directly above the reef—and a third sample may also be collected approximately 1 km offshore from the site. The samples are processed by CREP and sent to NOAA Pacific Marine Environmental Laboratory (PMEL) to be analyzed for total alkalinity (TA) and dissolved inorganic carbon (DIC). From these constituents, alongside temperature, salinity, and depth data, other constituents of the seawater carbonate system can be calculated. These monitoring data provide a baseline for tracking reef carbonate system changes due to globally increasing levels of atmospheric carbon dioxide.