68095 LBSP: Water Samples Aua Data Set Published / External 64847 LBSP Project Completed 2023-08 The data described here are from water samples collected during NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) led fly-in Mission to Aua, American Samoa from September 8-29, 2022. Five seawater samples were collected at each site, with a total of 18 sites established across a locally known water quality gradient. The seawater samples were processed in the field, then sent to the University of Hawaii at Manoa's SOEST S-Lab to be analyzed for water chemistry and nutrients. This water quality and chemistry data includes chlorophyll-a, dissolved nitrogen, nitrate, nitrite ammonia, dissolved phosphorus, phosphate, silicate, total suspended solids, and seawater pH. The analysis of water samples was one of several surveys conducted at the same sites across Aua reef in September 2022. Other surveys are described separately and accessible under 'Related Items' and include surveys of coral demography, benthic imagery/benthic cover, CTD casts, non-coral communities, and coral demography. The project was funded by NOAA CRCP under project number 31303. Samples were collected by NOAA divers Bernardo Vargas-Angel, Joy Smith, and Juliette Verstaen. Land-based sources of pollution negatively impact reef communities. Our goal here was to collect water samples and analyze them for their nutrients and chemical properties. We intend to assess whether or not a water quality gradient exists in the coral reefs of Aua. The focal point of the mission was to establish a biological and water quality and pH baseline for Aua reef. This work was aimed at identifying measurable spatial differences in the structure and composition of the benthic and coral community at Aua that can be explained by measurable spatial patterns of water quality (nutrients and sediments) and water chemistry (pH). This work is of fundamental importance for the development of the Aua Watershed Management Plan, and will enable Federal and jurisdictional resource managers to more effectively assess the effectiveness of watershed management actions reducing land-based pollution and impacts to the adjacent coral reef ecosystems. NOAA Coral Reef Conservation Program (CRCP) funds research under the Land-Based Sources of Pollution. This mission (Project number 31303) sought out to examine the impacts of LBSP on reef communities (coral and non-coral) in Aua, a high priority watershed in American Samoa. This mission builds on prior assessment and monitoring surveys of benthic reef communities conducted in Faga'alu and Vatia bays in 2012, 2015, and 2022 to address National and Jurisdictional goals to reduce the impacts of LBSP in local priority watersheds. Together with periodic monitoring, this coral reef community baseline for Aua reef will allow scientists to quantify temporal changes in the condition and integrity and enable Jurisdictional and Federal resource managers to make informed decisions pertaining to the protection and preservation of critical habitats. The overall effort required to evaluate the effectiveness of management strategies is significant and requires close coordination between local and Federal efforts. Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > MARINE GEOCHEMISTRY Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SUSPENDED SOLIDS Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > WATER QUALITY Theme ISO 19115 Topic Category environment Theme ISO 19115 Topic Category oceans Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA Instrument Global Change Master Directory (GCMD) Instrument Keywords NISKIN BOTTLES Instrument Global Change Master Directory (GCMD) Instrument Keywords PH METERS > PH METERS Theme CRCP Project 31303 Theme CRCP Project Linking watershed management activities to reef health in American Samoa Theme CoRIS Discovery Thesaurus Numeric Data Sets > Water Quality Theme CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat Theme CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment Theme CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs Theme CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Chemistry Monitoring and Assessment Theme CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Ocean Acidification Theme CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > pH Theme ISO 19115 Topic Category 007 Theme ISO 19115 Topic Category 014 Theme ISO 19115 Topic Category environment Theme ISO 19115 Topic Category oceans Theme NODC DATA TYPES THESAURUS AMMONIA Theme NODC DATA TYPES THESAURUS NITRATE + NITRITE CONTENT Theme NODC DATA TYPES THESAURUS SALINITY Theme NODC DATA TYPES THESAURUS SILICATE Theme NODC DATA TYPES THESAURUS SUSPENDED SOLIDS - TOTAL Theme NODC DATA TYPES THESAURUS TOTAL DISSOLVED NITROGEN Theme NODC DATA TYPES THESAURUS TOTAL PHOSPHORUS Theme NODC DATA TYPES THESAURUS WATER TEMPERATURE Theme NODC DATA TYPES THESAURUS chlorophyll a Theme NODC DATA TYPES THESAURUS pH Theme NODC INSTRUMENT TYPES THESAURUS pH sensors Theme NODC Observation Types Thesaurus in situ Theme NODC Observation Types Thesaurus laboratory analysis Theme NODC Project Names Thesaurus CORAL REEF STUDIES Theme NODC Project Names Thesaurus Coral Reef Conservation Program Theme NODC Submitting Institution Names Thesaurus US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division Theme Aua Theme CRED Theme CREP Theme Climate Change Theme Coral Reef Ecosystem Division Theme Coral Reef Ecosystem Program Theme ESD Theme Ecosystem Sciences Division Theme LBSP Theme PIFSC Theme Pacific Islands Fisheries Science Center Theme land-based source pollution Theme nutrients Theme water chemistry Spatial CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000) Spatial CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016) Spatial CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000) Spatial CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016) Spatial NODC Sea Area Names Thesaurus South Pacific Ocean Spatial AMSM Spatial American Samoa Instrument NODC INSTRUMENT TYPES THESAURUS Niskin bottle Platform NODC Platform Names Thesaurus chartered vessel Pacific Islands Fisheries Science Center Honolulu HI USA Data Set CSV Files None Planned Table (digital) This entity contains definitions for columns of water quality and water chemistry data includes chlorophyll-a, dissolved nitrogen, nitrate, nitrite ammonia, dissolved phosphorus, phosphate, silicate, total suspended solids, and seawater pH. https://www.fisheries.noaa.gov/inport/item/69890 While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA Fisheries, PIFSC Ecosystem Sciences Division and partners, and funded by the NOAA Coral Reef Conservation Program 69890 Published / External Completed Data dictionary for nutrients and water chemistry data from seawater samples collected along a water quality gradient in Aua reef, American Samoa. Data Table Yes Data dictionary for nutrients and water chemistry data from seawater samples collected along a water quality gradient in Aua reef, American Samoa. 1 LOCAL_DATE DATE No No Active Local date water samples was collected (mm/dd/yyyy) 2 LOCAL_TIME DATE No No Active Local time water sample was collected (hh:mm) 3 SITE_ID TEXT No No Active An identifier for the ecological site at the island or atoll (Tutuila) associated with the water sample. Combines a 3-letter island code (TUT) with a 2-4 digit site number. 3 LATITUDE NUMERIC No No Active Latitude in decimal degrees, WGS84, for the water sample. 3 LONGITUDE NUMERIC No No Active Longitude in decimal degrees, WGS84, for the water sample. 4 CTD_TEMPERATURE NUMERIC No No Active Measured temperature value in degrees Celsius from CTD cast at time and depth water sample was collected 5 CTD_SALINITY NUMERIC No No Active Measured salinity value in Practical Salinity Units (PSU) from CTD cast at time and depth water sample was collected 6 PH NUMERIC No No Active Measured pH value at time and depth water sample was collected, using pH sensor in situ 7 TSS NUMERIC No No Active Total suspended sediments as meaured in mg/L (weight of sediment/volume of seawater) 8 CHL NUMERIC No No Active Chlorophyll a (microg/L) from water sample analyzed by lab 9 TOTAL_N NUMERIC No No Active Total dissolved nitrogen (micromol/L) from water sample analyzed by lab 10 TOTAL_P NUMERIC No No Active Total dissolved phosphorus (micromol/L) from water sample analyzed by lab 11 PHOSPHATE NUMERIC No No Active Dissolved phosphate (micromol/L) from water sample analyzed by lab 12 SILICATE NUMERIC No No Active Dissolved silicate (micromol/L) from water sample analyzed by lab 13 NITRATE_NITRITE NUMERIC No No Active Sum of dissolved nitrate and nitrite (micromol/L) from water sample analyzed by lab 14 AMMONIA NUMERIC No No Active Dissolved ammonia (micromol/L) from water sample analyzed by lab Data Steward 2023 Person Smith, Joy joy.smith@noaa.gov 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA Email preferred Distributor 2015 Organization NOAA National Centers for Environmental Information NCEI ncei.info@noaa.gov https://ror.org/04r0wrp59 https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. Online Resource Metadata Contact 2023 Person Luers, Lori H lori.luers@noaa.gov 1845 Wasp Blvd. Honolulu HI 96818 USA Email preferred Originator 2021 Organization NOAA Coral Reef Conservation Program CRCP 1305 East West Highway 10th Floor Silver Spring MD 20910-3281 (301) 713-3155 https://coralreef.noaa.gov Link to the NOAA Coral Reef Conservation Program website Online Resource Originator 2021 Organization Pacific Islands Fisheries Science Center PIFSC pifsc.info@noaa.gov https://ror.org/02apffz65 1845 Wasp Blvd. Honolulu HI 96818 USA 808-725-5360 https://www.pifsc.noaa.gov Pacific Island Fisheries Science Center homepage Online Resource 8:00 a.m. - 4:30 p.m. Point of Contact 2023 Person Smith, Joy joy.smith@noaa.gov 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA Ground Condition American Samoa -170.669 -170.665 -14.2717 -14.2881 Water samples collected along water quality gradient near Aua village in Pago Pago harbour Range 2022-09-13 2022-09-23 Water samples collected 5 times at 18 sites between the dates of September 13-23, 2022. Unclassified Not applicable Not applicable NOAA Coral Reef Ecosystem Sciences Division (ESD) Data Sharing Recommendations, version 9.0 updated August 12, 2015: The ESD welcomes the opportunity to collaborate on research issues contributing to the scientific basis for better management of marine ecosystems. The ESD has a very diverse set of field activities that generates large volumes of data using an array of data collection protocols. The following recommendations are for your consideration as you use this data: 1) Data analyses should take all field exigencies into account. The most effective way to do this would be active collaboration with ESD principal investigators. 2) In all presentations, product releases, or publications using data generated by ESD, proper acknowledgement of both ESD and the individuals responsible for data collection is expected. Citing the DOI (if available) is preferred, a non-DOI example is listed below. 3) If you collect or generate data for the same study areas, ESD requests that you share relevant information on complimentary data collections. 4) Those receiving data are strongly urged to inform the ESD Data Management Team of any errors and discrepancies that are discovered during the course of using these data. They are further urged to bring to the attention of the Team all problems and difficulties encountered in using these data. This information is necessary in order to improve the collections and to facilitate more efficient and economical data processing and retrieval. The users are asked to supply copies of any missing data that may be located, and to provide information as to significant subsets and special aggregations of data that are developed in using the material provided. Example citation: "This publication makes use of data products provided by the Coral Reef Ecosystem Sciences Division (ESD), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), with funding support from the NOAA Coral Reef Conservation Program (CRCP). The analysis and interpretations presented here are solely that of the current authors." Data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive. None Please cite PIFSC Ecosystem Sciences Division (ESD) when using the data. Example: Ecosystem Science Division; Pacific Islands Fisheries Science Center, 2023: Effects of Nutrients on Water Chemistry of Aua Reef in American Samoa from Water Samples collected in 2022 along a water quality gradient, https://www.fisheries.noaa.gov/inport/item/68095 None None https://accession.nodc.noaa.gov/0282182 2015 Organization NOAA National Centers for Environmental Information https://ror.org/04r0wrp59 LBSP_nutrient_water_chemistry_data_Aua_2022.csv Contains data from 18 sites along a water gradient in Aua, American Samoa. Data includes particulates and dissolved nutrients, along with water chemistry (pH) as analyzed by SOEST-S lab. A subset of CTD data (temperature and salinity) is also included for each water sample for the given time and depth of water sample; entirety of CTD data is described on a separate metadata record which can be accessed under 'Related Items' csv CSV - Comma Separated Values (Text) https://coralreef.noaa.gov/issues/lbsp.html NOAA CRCP Land-based Sources of Pollution Online Resource HTML NOAA CRCP page 'Reduce Land-Based Sources of Pollution'; includes other related links https://www.pifsc.noaa.gov/ecosystem_sciences/ Ecosystem Sciences Division Online Resource PHP PIFSC Ecosystem Sciences Division website. For the water chemistry samples (pH), temperature and salinity data at appropriate depth are extracted and linked with each water sample. PH sensors were used at time of water sample, and temperature and salinity data were extracted from CTD data at reef depth. For the nutrient samples, are values were derived in the laboratory following standard procedures and were completed by the S-Lab at the University of Hawaii at Manoa Accuracy of laboratory analysis is explained in detail in Dickson et al (2007). Accuracy of measurements coming from SBE-19plus CTD sensor: Conductivity - measurement range: 0-9 S/m; accuracy: +/- 0.0005 S/m; stability: 0.0003 S/m per month; resolution: 0.00005 S/m; Temperature - measurement range: -5-35 deg C; accuracy: +/-0.005 deg C; stability: 0.0002 deg C per month; resolution: 0.0001 deg C; Since the carbonate system can vary on a diel scale and not all samples are taken at the exact same time of day, considering the time a sample was taken may be important for some analyses. However, because all samples are taken between 8:00 AM and 12:00 PM, variation due to diel change is expected to be small. Obviously erroneous data have been removed from the final dataset. Missing values are indicated with a n/a. The same methods of data collection are used each time a water sample is collected. Pressure, depth, temperature, and salinity are routinely included in the observation dataset. The data are very consistent, sample collection and processing protocols are adhered to very rigorously, both in the field and in the lab. The data is quality controlled by NOAA PIFSC Ecosystem Sciences Division (ESD) personnel after the data is downloaded from the instruments, prior to and after the data are migrated to the PIFSC enterprise Oracle database, and once again when the data are submitted to the NOAA National Centers for Environmental Information. Yes Unknown Yes No Unknown NCEI-MD Unknown The data is captured in several locations: files stored on the PIFSC network. The PIFSC network is maintained and regularly backed up by PIFSC ITS. PIFSC Ecosystem Sciences Division (ESD) assembles water chemistry information from discrete seawater samples analyzed for pH. The carbonate system is influenced by seawater salinity, temperature, pressure, and the dissolved nutrients silicate (SiO44-) and phosphate (PO43-). All carbonate system collection and measurement methodologies follow the protocols accepted by the greater scientific community and outlined in Dickson et al. (2007) Sites were selected randomly along a water quality gradient established by local knowledge. Dickson et al (2007), SOP 1: Water Sampling for the parameters of the oceanic carbon dioxide system https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Handbook_2007.html Guide to Best Practices for CO2 Measurements Dickson et al (2007), SOP 1: Water Sampling for the parameters of the oceanic carbon dioxide system 1 Water samples collected in the field and analyzed by SOEST. Person Smith, Joy joy.smith@noaa.gov 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA 2 Discrete water samples are collected according to the established protocol. Borosilicate bottle were rinsed and filled from bottom, leaving a minimal amount of headspace while making sure no bubbles were introduced. Then 0.2 ml of saturated HgCl2 solution was added. Person Smith, Joy joy.smith@noaa.gov 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA 3 PIFSC ESD collects co-located salinity, temperature, and pressure values by deploying a CTD in concert with every discrete seawater sample collection. Salinity, temperature, and pressure values are used from the same depth as sample collection. Person Smith, Joy joy.smith@noaa.gov 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA 5 Water samples were measured for pH using hand-held YSI that had been calibrated with buffers (pH 4, 7, 10). Person Smith, Joy joy.smith@noaa.gov 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA 8 All data is archived with NCEI. Person Smith, Joy joy.smith@noaa.gov 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA 69890 Entity 67995 Data Set Cross Reference Coral Demographic data collected during MP2206, the same fly-in mission to American Samoa to survey Aua 68092 Data Set Cross Reference Non-coral biological indicators for LBSP 68094 Data Set Cross Reference CTD profile data collected from the same MP2206 fly-in mission to American Samoa to survey Aua reefs; CTD points in water chemistry dataset come from this data package. gov.noaa.nmfs.inport:68095 Lori Luers 2022-10-25T19:23:57 SysAdmin InPortAdmin 2026-03-04T19:17:17 2023-08-29 Pacific Islands Fisheries Science Center PIFSC 1845 Wasp Blvd. Honolulu HI 96818 USA 808-725-5300 https://www.pifsc.noaa.gov 8:00 a.m. - 4:30 p.m. 1001 Public No No 2023-08-29 1 Year 2024-08-29