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Summary

Short Citation
Pacific Islands Fisheries Science Center, 2024: Benthic Surveys in Vatia, American Samoa: comprehensive assessment of coral demography (adult and juvenile corals) from belt transect surveys in 2015 and 2020, https://www.fisheries.noaa.gov/inport/item/30771.
Full Citation Examples

Abstract

Jurisdictional managers have expressed concerns that nutrients from the village of Vatia, Tutuila, American Samoa, are having an adverse effect on the adjacent coral reef ecosystem. Excess nutrient loads promote increases in algal growth that can have deleterious effects on corals, such as benthic algae outcompeting and overgrowing corals. Nitrogen and phosphorus can also directly impact corals by lowering fertilization success, and reducing both photosynthesis and calcification rates. Land-based contributions of nutrients come from a variety of sources; in Vatia the most likely sources are poor wastewater management from piggeries and septic systems.

NOAA scientists conducted benthic surveys to establish a baseline against which to compare changes in the algal and coral assemblages in response to land-based sources of pollution, including nutrient fluxes.

The data described here result from benthic coral demographic surveys within belt transects of specified length and width for two life stages (juveniles and adults) in Vatia Bay American Samoa in 2015, and 2020. The data provide information on adult coral colony counts, morphology, size, partial mortality (old and recent dead), presence and causation of disease and other compromised health conditions, including bleaching. Juvenile colony surveys include morphology and size. Taxonomic identification of adult colonies is to the species level and genus level for juveniles.

In 2015, the survey implemented a two-stage stratified random sampling (StRS) design to assess the Vatia coral reef community, and a one-stage StRS design in 2020. The survey domain encompassed the majority of the mapped area of reef and hard bottom habitats in the 0–30 m depth range. The stratification scheme included cardinal position (i.e., north and south) and depth (i.e., shallow: >0–6 m and mid-depth: >6–18 m). Sampling effort allocation was determined based on strata area and sites randomly located within strata. The StRS design effectively reduces estimate variance through stratification using environmental covariates and by sampling more sites rather than more transects per site. Therefore, site-to-site comparisons should proceed with caution.

Distribution Information

  • PDF - Adobe Portable Document Format

    Draft Coral Reef Ecosystem Program - Standard Operating Procedures: Rapid Ecological Assessment (REA) Benthic Survey Data Collection - latest draft as of March 21, 2016. Refer to the Methodology - Benthic Survey sections only for the survey methodology details, as the other components are not relevant to this particular set of non-RAMP surveys.

  • CSV - Comma Separated Values (Text), 1496 KB

    Coral demographic data of adult corals from belt transect surveys conducted by the NOAA Coral Reef Ecosystem Program (CREP) in Vatia Bay, Tutuila, American Samoa in 2015.

  • CSV - Comma Separated Values (Text), 118 KB

    Coral demographic data of juvenile corals from belt transect surveys conducted by the NOAA Coral Reef Ecosystem Program (CREP) in Vatia Bay, Tutuila, American Samoa in 2015.

  • CSV - Comma Separated Values (Text)

    Coral demographic data of adult corals from belt transect surveys conducted by the NOAA PIFSC Ecosystem Sciences Division (ESD) in Vatia Bay, Tutuila, American Samoa in 2020.

  • CSV - Comma Separated Values (Text)

    Coral demographic data of juvenile corals from belt transect surveys conducted by the NOAA PIFSC Ecosystem Sciences Division (ESD) in Vatia Bay, Tutuila, American Samoa in 2020.

Access Constraints:

None

Use Constraints:

Please cite NOAA Coral Reef Ecosystem Program (CREP) when using the data.

Example

Cite as: Vargas-Angel, Bernardo; Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2017). Benthic Surveys in Vatia, American Samoa since 2015: comprehensive assessment of coral demography (adult and juvenile corals) from belt transect surveys in 2015. NOAA National Centers for Environmental Information. https://www.fisheries.noaa.gov/inport/item/30771

Controlled Theme Keywords

biota

Child Items

Type Title
Entity View: V0_CORAL_OBS_E
Entity View: V0_CORAL_OBS_F

Contact Information

Point of Contact
Bernardo Vargas-Angel
bernardo.vargasangel@noaa.gov
(808)725-5423

Metadata Contact
Brooke Olenski
brooke.olenski@noaa.gov

Extents

Geographic Area 1

-170.67555555556° W, -170.66666666667° E, -14.24305555556° N, -14.25138888889° S

Vatia Bay, Tutuila, American Samoa

Time Frame 1
2015-11-02 - 2015-11-12

Coral demographic surveys in 2015

Time Frame 2
2020-01-15 - 2020-01-30

Coral demographic surveys in 2020

Item Identification

Title: Benthic Surveys in Vatia, American Samoa: comprehensive assessment of coral demography (adult and juvenile corals) from belt transect surveys in 2015 and 2020
Short Name: Vatia: BLT 2015 and 2020
Status: Completed
Publication Date: 2017
Abstract:

Jurisdictional managers have expressed concerns that nutrients from the village of Vatia, Tutuila, American Samoa, are having an adverse effect on the adjacent coral reef ecosystem. Excess nutrient loads promote increases in algal growth that can have deleterious effects on corals, such as benthic algae outcompeting and overgrowing corals. Nitrogen and phosphorus can also directly impact corals by lowering fertilization success, and reducing both photosynthesis and calcification rates. Land-based contributions of nutrients come from a variety of sources; in Vatia the most likely sources are poor wastewater management from piggeries and septic systems.

NOAA scientists conducted benthic surveys to establish a baseline against which to compare changes in the algal and coral assemblages in response to land-based sources of pollution, including nutrient fluxes.

The data described here result from benthic coral demographic surveys within belt transects of specified length and width for two life stages (juveniles and adults) in Vatia Bay American Samoa in 2015, and 2020. The data provide information on adult coral colony counts, morphology, size, partial mortality (old and recent dead), presence and causation of disease and other compromised health conditions, including bleaching. Juvenile colony surveys include morphology and size. Taxonomic identification of adult colonies is to the species level and genus level for juveniles.

In 2015, the survey implemented a two-stage stratified random sampling (StRS) design to assess the Vatia coral reef community, and a one-stage StRS design in 2020. The survey domain encompassed the majority of the mapped area of reef and hard bottom habitats in the 0–30 m depth range. The stratification scheme included cardinal position (i.e., north and south) and depth (i.e., shallow: >0–6 m and mid-depth: >6–18 m). Sampling effort allocation was determined based on strata area and sites randomly located within strata. The StRS design effectively reduces estimate variance through stratification using environmental covariates and by sampling more sites rather than more transects per site. Therefore, site-to-site comparisons should proceed with caution.

Purpose:

These data were generated from benthic surveys undertaken in Vatia Bay to establish a comprehensive baseline, status, and trends for benthic composition and coral demographics, and are part of a broader NOAA Coral Reef Conservation Program (CRCP) funded project led by NCCOS and ESD to assess eutrophication impacts on coral ecosystem health in the bay. These efforts feed into the higher-level CRCP objectives by establishing an in-situ tracking system to assess the effects of management and mitigation strategies and activities in the target watersheds to reduce land-based sources of pollution.

Other Citation Details:

Vargas-Angel B, Schumacher BD. 2018. Baseline surveys for coral reef community structure and demographics in Vatia Bay and Faga'alu Bay, American Samoa. Pacific Islands Fisheries Science Center, PIFSC Special Publication, SP-18-002, 38 p. https://doi.org/10.7289/V5/SP-PIFSC-18-002.

and

Vargas-Ángel B, Huntington B. 2020. Status and Trends Assessment of Benthic Coral Reef Communities in Vatia Bay, American Samoa, 2015–2020. Pacific Islands Fisheries Science Center, PIFSC Data Report, DR-20-020, 34p. https://doi.org/10.25923/r7dd-wg50, https://repository.library.noaa.gov/view/noaa/27437

Supplemental Information:

Monthly water quality sampling for nitrate/nitrite, ammonium, urea, total nitrogen, orthophosphorus, and total phosphorus data are also collected as part of this project to quantify the nutrient dynamics of the Bay. These additional data are described separately by the NOAA National Centers for Coastal Ocean Science (NCCOS); see citation below.

Whitall, D, M Curtis, A Mason, B Vargas-Angel. 2019. Excess Nutrients in Vatia Bay, American Samoa: Spatiotemporal Variability, Source Identification and Impact on Coral Reef Ecosystems. NOAA Technical Memorandum NOS NCCOS 266. Silver Spring. 69 pages. doi:10.25923/j8cp-x570

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
biota
UNCONTROLLED
CoRIS Discovery Thesaurus Numeric Data Sets > Biology
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Coral Diseases
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Coral Mortality
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Damage Assessment > Pollution
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Baseline studies
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Benthos Analysis > Transect Monitoring > Belt Transect
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Coral Colony Size and Condition
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Biological
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Benthic biology
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Marine Biology > Coral
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Marine Biology > Coral Communities
CRCP Project 31090
CRCP Project Eutrophication Impacts on Coral Ecosystem Health in Vatia, American Samoa
NODC DATA TYPES THESAURUS CORAL
NODC DATA TYPES THESAURUS CORAL - CENSUS
NODC DATA TYPES THESAURUS CORAL - COLONY SIZE
NODC DATA TYPES THESAURUS CORAL - SPECIES IDENTIFICATION
NODC OBSERVATION TYPES THESAURUS survey - biological
NODC OBSERVATION TYPES THESAURUS survey - coral reef
NODC OBSERVATION TYPES THESAURUS survey - swimmer/diver
NODC PROJECT NAMES THESAURUS Coral Reef Conservation Program
NODC SUBMITTING INSTITUTION NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division; Coral Reef Ecosystem Program
None Coral Reef Ecosystem Division
None Coral Reef Ecosystem Program
None CRED
None CREP
None Ecosystem Sciences Division
None ESD
None Pacific Islands Fisheries Science Center
None PIFSC

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > American Samoa > Tutuila Island > Vatia Bay (14S170W0028)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Tutuila Island > Vatia Bay (14S170W0028)
NODC SEA AREA NAMES THESAURUS South Pacific Ocean
None Vatia

Physical Location

Organization: Pacific Islands Fisheries Science Center
City: Honolulu
State/Province: HI
Country: USA

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: CSV Files
Maintenance Frequency: None Planned
Data Presentation Form: Table (digital)
Entity Attribute Overview:

Raw data include individual colony records with the corresponding physical data which reflect the description of the site.

An individual colony record for adult corals includes colony species/genus identification, morphology, maximum diameter (centimeter), percent old dead, percent recent dead, cause of recent dead general category, cause of recent dead specific category, condition, extent and severity. https://www.fisheries.noaa.gov/inport/item/30772

Juvenile coral colony records include colony species/genus identification, morphology, maximum diameter (centimeter). https://www.fisheries.noaa.gov/inport/item/30773

The physical record for juvenile and adult corals includes the following: region, island, site, date (day, month, year), latitude (decimal degrees), longitude (decimal degrees), transect, segment, segment length, segment width, minimum depth (feet), and maximum depth.

Distribution Liability:

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.

Data Set Credit: PIFSC Coral Reef Ecosystem Program and funded by the NOAA Coral Reef Conservation Program

Support Roles

Data Steward

CC ID: 286467
Date Effective From: 2015
Date Effective To:
Contact (Person): Vargas-Angel, Bernardo
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: bernardo.vargasangel@noaa.gov
Phone: (808)725-5423
Contact Instructions:

Email preferred

Distributor

CC ID: 286468
Date Effective From: 2017
Date Effective To:
Contact (Organization): National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD)
Address: NOAA/NESDIS E/OC SSMC3, 4th Floor, 1351 East-West Highway
Silver Spring, MD 20910-3282
Phone: (301) 713-3277

Metadata Contact

CC ID: 1054800
Date Effective From: 2021
Date Effective To:
Contact (Person): Olenski, Brooke
Email Address: brooke.olenski@noaa.gov

Originator

CC ID: 286471
Date Effective From: 2015
Date Effective To:
Contact (Organization): Pacific Islands Fisheries Science Center (PIFSC)
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: pifsc.info@noaa.gov
Phone: 808-725-5360
URL: https://www.pifsc.noaa.gov
Business Hours: 8:00 a.m. - 4:30 p.m.

Originator

CC ID: 286466
Date Effective From: 2015
Date Effective To:
Contact (Organization): NOAA Coral Reef Conservation Program (CRCP)
Address: 1305 East West Highway 10th Floor
Silver Spring, MD 20910-3281
Phone: (301) 713-3155
URL: https://coralreef.noaa.gov
Contact Instructions:

Funders

Point of Contact

CC ID: 286472
Date Effective From: 2015
Date Effective To:
Contact (Person): Vargas-Angel, Bernardo
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: bernardo.vargasangel@noaa.gov
Phone: (808)725-5423
Contact Instructions:

Email preferred

View Historical Support Roles

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Description:

Vatia Bay, Tutuila, American Samoa

Extent Group 1 / Geographic Area 1

CC ID: 303224
W° Bound: -170.67555555556
E° Bound: -170.66666666667
N° Bound: -14.24305555556
S° Bound: -14.25138888889
Description

Vatia Bay, Tutuila, American Samoa

Extent Group 1 / Time Frame 1

CC ID: 303231
Time Frame Type: Range
Start: 2015-11-02
End: 2015-11-12
Description:

Coral demographic surveys in 2015

Extent Group 1 / Time Frame 2

CC ID: 994854
Time Frame Type: Range
Start: 2020-01-15
End: 2020-01-30
Description:

Coral demographic surveys in 2020

Access Information

Security Class: Unclassified
Security Classification System:

Not applicable

Security Handling Description:

Not applicable

Data Access Policy:

NOAA Coral Reef Ecosystem Program (CREP) Data Sharing Recommendations, version 9.0 updated August 12, 2015:

CREP welcomes the opportunity to collaborate on research issues contributing to the scientific basis for better management of marine ecosystems. CREP 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 CREP principal investigators.

2) In all presentations, product releases, or publications using data generated by CREP, proper acknowledgement of both CREP 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, CREP requests that you share relevant information on complimentary data collections.

4) Those receiving data are strongly urged to inform the CREP 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 Program (CREP), 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 Access Procedure:

Data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive.

Data Access Constraints:

None

Data Use Constraints:

Please cite NOAA Coral Reef Ecosystem Program (CREP) when using the data.

Example

Cite as: Vargas-Angel, Bernardo; Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2017). Benthic Surveys in Vatia, American Samoa since 2015: comprehensive assessment of coral demography (adult and juvenile corals) from belt transect surveys in 2015. NOAA National Centers for Environmental Information. https://www.fisheries.noaa.gov/inport/item/30771

Metadata Access Constraints:

None

Metadata Use Constraints:

None

Distribution Information

Distribution 1

CC ID: 308669
Download URL: https://accession.nodc.noaa.gov/0146680
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2017 - Present)
File Name: Draft_StRS_coralsurvey_2014.pdf
Description:

Draft Coral Reef Ecosystem Program - Standard Operating Procedures: Rapid Ecological Assessment (REA) Benthic Survey Data Collection - latest draft as of March 21, 2016. Refer to the Methodology - Benthic Survey sections only for the survey methodology details, as the other components are not relevant to this particular set of non-RAMP surveys.

File Date/Time: 2016-03-21 00:00:00
File Type (Deprecated): PDF
Distribution Format: PDF - Adobe Portable Document Format

Distribution 2

CC ID: 286480
Download URL: https://accession.nodc.noaa.gov/0165016
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2017 - Present)
File Name: V0_CORAL_OBS_E VATIA.csv
Description:

Coral demographic data of adult corals from belt transect surveys conducted by the NOAA Coral Reef Ecosystem Program (CREP) in Vatia Bay, Tutuila, American Samoa in 2015.

File Date/Time: 2016-03-14 00:00:00
File Type (Deprecated): csv (comma-separated values)
Distribution Format: CSV - Comma Separated Values (Text)
File Size: 1496 KB

Distribution 3

CC ID: 286481
Download URL: https://accession.nodc.noaa.gov/0165016
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2017 - Present)
File Name: V0_CORAL_OBS_F VATIA.csv
Description:

Coral demographic data of juvenile corals from belt transect surveys conducted by the NOAA Coral Reef Ecosystem Program (CREP) in Vatia Bay, Tutuila, American Samoa in 2015.

File Date/Time: 2016-02-17 00:00:00
File Type (Deprecated): csv (comma-separated values)
Distribution Format: CSV - Comma Separated Values (Text)
File Size: 118 KB

Distribution 4

CC ID: 1065207
Download URL: https://accession.nodc.noaa.gov/0240417
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2017 - Present)
File Name: V0_CORAL_OBS_E VATIA_2020.csv
Description:

Coral demographic data of adult corals from belt transect surveys conducted by the NOAA PIFSC Ecosystem Sciences Division (ESD) in Vatia Bay, Tutuila, American Samoa in 2020.

File Date/Time: 2021-05-04 00:00:00
File Type (Deprecated): csv (comma-separated values)
Distribution Format: CSV - Comma Separated Values (Text)

Distribution 5

CC ID: 1065208
Download URL: https://accession.nodc.noaa.gov/0240417
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2017 - Present)
File Name: V0_CORAL_OBS_F VATIA_2020.csv
Description:

Coral demographic data of juvenile corals from belt transect surveys conducted by the NOAA PIFSC Ecosystem Sciences Division (ESD) in Vatia Bay, Tutuila, American Samoa in 2020.

File Date/Time: 2021-05-04 00:00:00
File Type (Deprecated): csv (comma-separated values)
Distribution Format: CSV - Comma Separated Values (Text)

URLs

URL 1

CC ID: 286311
URL: https://coastalscience.noaa.gov/projects/detail?key=245
URL Type:
Online Resource
File Resource Format: HTML
Description:

NCCOS Project Details: Nutrient Dynamics and Changes to Benthic Communities in Vatia, American Samoa

URL 2

CC ID: 308903
URL: ftp://ftp.library.noaa.gov/noaa_documents.lib/NMFS/PIFSC/PIFSC_special_publication/SP-16-001.pdf
URL Type:
Online Resource
File Resource Format: PDF
Description:

A summary of the monitoring activities conducted in Vatia Bay by the NOAA Coral Reef Ecosystem Program.

URL 3

CC ID: 332974
URL: https://www.pifsc.noaa.gov/cred/corals.php
URL Type:
Online Resource
File Resource Format: PHP
Description:

Overview of NOAA Coral Reef Ecosystem Program's methods to assess corals.

Technical Environment

Description:

PIFSC Oracle database views: v0_coral_obs_e and v0_coral_obs_f (date and location selection criteria required to subset the dataset)

Data Quality

Accuracy:

Observations were made by experienced benthic survey personnel who have been trained, undergone a series of calibration surveys and coral taxon identification testing, and have met a set of minimum standards for colony assessment and taxon identification in each region. The accuracy of species and genus level identification was high. The lowest taxonomic level of coral identification was genus except for a select number of species that were consistently identified to species by all divers conducting the surveys.

Handheld GPS units were used to locate sites and mark site locations.

Analytical Accuracy:

The taxon code AAAA is included where the segment was surveyed and no individual colonies were found in both the juvenile and adult colony records. These are true zeros. The value -9 is a placeholder or missing value for the fields: colony length, colony width (juveniles), extent, and severity. The value -1 is included where a coral colony is a fragment.

Bias:

While colony lengths are derived from physical measurements, recent and old mortality are visual estimates; surveyors calibrate to reduce inter-observer bias

Comparability:

Site GPS location and depth are appropriately collected to allow spatiotemporal comparisons.

Completeness Measure:

Complete. All planned demographic data were collected.

Completeness Report:

Only forereef, hard bottom habitats were surveyed.

Conceptual Consistency:

Survey methods were consistent across all sites.

Quality Control Procedures Employed:

The quality control occurred at two major stages - 1) data entry and 2) data management. Data entry quality control included both review and manual error correction steps. Data management quality control included several standard error queries followed by correction prior to ingestion into Oracle database.

Data Management

Have Resources for Management of these Data Been Identified?: Yes
Approximate Percentage of Budget for these Data Devoted to Data Management: Unknown
Do these Data Comply with the Data Access Directive?: Yes
Is Access to the Data Limited Based on an Approved Waiver?: No
Approximate Delay Between Data Collection and Dissemination: Unknown
Actual or Planned Long-Term Data Archive Location: NCEI-MD
Approximate Delay Between Data Collection and Archiving: Unknown
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

NOAA IRC and NOAA Fisheries ITS resources and assets.

Lineage

Lineage Statement:

The data described here were collected via belt transect surveys of coral demography (adult and juvenile corals) by the NOAA Coral Reef Ecosystem Program (CREP) following the same protocol to that established by the NOAA National Coral Reef Monitoring Program (NCRMP).

Sources

Baseline surveys for coral reef community structure and demographics in Vatia and Faga'alu Bay, American Samoa

CC ID: 1055286
Contact Role Type: Originator
Contact Type: Organization
Contact Name: NOAA Pacific Islands Fisheries Science Center
Citation URL: https://repository.library.noaa.gov/view/noaa/17369
Citation URL Name: PIFSC special publication ; SP-18-002
Citation URL Description:

Vargas-Angel, B., B.D. Schumacher. (2018). Baseline Surveys for Coral Reef Community Structure and Demographics in Vatia and Faga'alu Bay, American Samoa NOAA Pacific Islands Fisheries Science Center, PIFSC Special Publication, SP-18-002, 38 p. 4

Ecosystem Sciences Division standard operating procedures: data collection for rapid ecological assessment benthic surveys

CC ID: 286478
Contact Role Type: Originator
Contact Type: Organization
Contact Name: NOAA Pacific Islands Fisheries Science Center
Citation URL: https://repository.library.noaa.gov/view/noaa/18267
Citation URL Name: NOAA technical memorandum NMFS-PIFSC ; 71
Citation URL Description:

Swanson, D., Bailey, H., Schumacher, B., Ferguson, M., and B. Vargas-Ángel. 2018. Ecosystem Sciences Division Standard Operating Procedures: Data Collection for Rapid Ecological Assessment Benthic Surveys. NOAA Tech. Memo. NMFS-PIFSC-71, 63 p. https://doi.org/10.25923/39jh-8993

Ecosystem Sciences Division Standard Operating Procedures: Data Collection for Rapid Ecological Assessment Benthic Surveys, 2019 Update

CC ID: 1055285
Contact Role Type: Originator
Contact Type: Organization
Contact Name: NOAA Pacific Islands Fisheries Science Center
Citation URL: https://repository.library.noaa.gov/view/noaa/23951
Citation URL Name: NOAA Technical Memorandum NMFS-PIFSC ; 96
Citation URL Description:

Winston W, Couch C, Huntingon B, Vargas-Ángel B. 2020. Ecosystem Sciences Division standard operating procedures: data collection for rapid ecological assessment benthic surveys,2019 update. NOAA Tech. Memo. NMFS-PIFSC-96, 56 p

Status and Trends Assessment of Benthic Coral Reef Communities in Vatia Bay, American Samoa, 2015–2020

CC ID: 1055287
Contact Role Type: Originator
Contact Type: Organization
Contact Name: NOAA Pacific Islands Fisheries Science Center
Citation URL: https://repository.library.noaa.gov/view/noaa/27437
Citation URL Name: PIFSC Data Report DR-20-020. Issued 25 November 2020. https://doi.org/10.25923/r7dd-wg50
Citation URL Description:

Vargas-Ángel, B., and Huntington, B. 2010. Status and Trends Assessment of Benthic Coral Reef Communities in Vatia Bay, American Samoa, 2015–2020PIFSC Data Report DR-20-020. Issued 25 November 2020. https://doi.org/10.25923/r7dd-wg50

Process Steps

Process Step 1

CC ID: 286479
Description:

Biological surveys implemented a modified stratified random sampling design to assess the survey domain which encompassed the hard-bottom reef habitat from 0 to 18 m in depth within Vatia Bay. Based on the geomorphology of the reef, the stratification scheme combined two depth categories (shallow: 0–6 m and mid-depth: 6–18 m) and two cardinal positions (north and south) into four distinct strata: i.e., mid-depth north, mid-depth south, shallow north, and shallow south). A digital map of the survey domain was overlaid with a 30 m × 30 m grid designating potential survey sites in all four strata. Sampling effort was allocated relative to strata area and survey sites were randomly selected within each stratum

Belt-transects were the focal point of the biological surveys. Coral community composition was assessed within a number of 1.0 m × 2.5 m segments located at the 0–2.5 m, 5.0–7.5 m, 10–12.5 m, 15–17.5 m mark along each transect; bottom-time permitting, covering a total area ranging 5–10 m2 per transect. Over time, protocols were adjusted to increase efficiency such that two, 18-m transects in 2015, and one 18-m transect in 2020. Within segments, all adult coral colonies (≥5 cm maximum diameter) whose center fell within 0.5 m on either side of the transect line were identified to the genus-level and measured for size (maximum diameter to nearest cm). Juvenile coral colonies (<5 cm), distinguished by the presence of a distinct tissue and skeletal boundary (not a remnant of a larger colony), were surveyed within three 1.0 m × 1.0 m segments at the 0–1.0 m, 5.0–6.0 m, and 10.0–11.0 m mark of each transect (covering 3 m2 per transect). Juvenile colonies were identified to genus and measured for size (maximum diameter to nearest 5 mm).

For the estimation of benthic cover, still photographs were collected using the photoquadrat method at predetermined points along the transect line with a high-resolution digital camera mounted on a pole. In 2015, photographs were taken every meter from the 1-m to the 15-m mark on each of the two transects per site (n = 30) and in 2020, every meter from the 1-m to the 30-m mark along an extended belt-transect line (n = 30). Photoquadrats were analyzed implementing the computer software CoralNet. These data are documented separately.

Survey protocols followed the National Coral Reef Monitoring Program methodologies historically implemented by NOAA's Ecosystem Sciences Division.

Process Contact: Swanson, Dione W
Phone (Voice): (808)725-5417
Email Address: dione.swanson@noaa.gov
Source: Ecosystem Sciences Division standard operating procedures: data collection for rapid ecological assessment benthic surveys

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity View: V0_CORAL_OBS_E
Entity View: V0_CORAL_OBS_F

Catalog Details

Catalog Item ID: 30771
GUID: gov.noaa.nmfs.inport:30771
Metadata Record Created By: Annette M DesRochers
Metadata Record Created: 2016-02-16 19:10+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-10-17 16:12+0000
Metadata Record Published: 2021-09-01
Owner Org: PIFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-09-01
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-09-01