Coral reef ecosystem marine protected area monitoring in Fagamalo, American Samoa: benthic percent cover derived from analysis of benthic images collected during belt transect s...
Data Set (DS) | Pacific Islands Fisheries Science Center (PIFSC)GUID: gov.noaa.nmfs.inport:31621 | Updated: October 3, 2024 | Published / External
Summary
Short Citation
Pacific Islands Fisheries Science Center, 2024: Coral reef ecosystem marine protected area monitoring in Fagamalo, American Samoa: benthic percent cover derived from analysis of benthic images collected during belt transect surveys of coral demography in 2015, https://www.fisheries.noaa.gov/inport/item/31621.
Full Citation Examples
In 2010 the village of Fagamalo, Tutuila, American Samoa, designated a no-take Marine Protected Area that sees the protection of 2.25 square kilometers of ocean. Because little is known regarding the status of living marine communities in the area, and at the request of the American Samoa Department of Marine and Wildlife Resources, NOAA scientists conducted surveys to assess the status of the benthic communities and establish a baseline against which to compare temporal change.
The benthic cover data described here were generated from the quantitative analysis of photoquadrat benthic images using image analysis software, whereby random points are projected on each image and the benthic elements falling directly underneath each point are identified. The images were collected at 18 randomly selected stratified sites in Fagamalo in 2015 during belt transect surveys of coral demography by the NOAA Coral Reef Ecosystem Program (CREP).
The benthic cover data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive. The benthic images and coral demography data are described and archived separately.
Distribution Information
-
CSV - Comma Separated Values (Text)
Benthic cover data derived from analysis of benthic images collected during belt transect surveys conducted by the NOAA Coral Reef Ecosystem Program (CREP) in Fagamalo, Tutuila, American Samoa in 2015.
None
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). Coral reef ecosystem marine protected area monitoring in Fagamalo, American Samoa: benthic percent cover derived from analysis of benthic images collected during belt transect surveys of coral demography in 2015. NOAA National Centers for Environmental Information. https://www.fisheries.noaa.gov/inport/item/31621
Controlled Theme Keywords
biota
Child Items
Type | Title |
---|---|
Entity | Benthic Image analysis classification scheme |
Entity | Table: MV_BIA_PERC_COVER_PHOTO_STR |
Contact Information
Point of Contact
Bernardo Vargas-Angel
bernardo.vargasangel@noaa.gov
(808)725-5423
Metadata Contact
Annette M DesRochers
annette.desrochers@noaa.gov
(808)725-5461
Extents
-170.81195363° W,
-170.79879018° E,
-14.28060332° N,
-14.29253127° S
Extent of underwater surveys at Fagamalo, Tutuila, American Samoa in 2015.
2015-10-26 - 2015-11-13
Time frame of surveys conducted at Fagamalo, Tutuila, American Samoa
Item Identification
Title: | Coral reef ecosystem marine protected area monitoring in Fagamalo, American Samoa: benthic percent cover derived from analysis of benthic images collected during belt transect surveys of coral demography in 2015 |
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Short Name: | Fagamalo: Benthic Cover |
Status: | Completed |
Publication Date: | 2017 |
Abstract: |
In 2010 the village of Fagamalo, Tutuila, American Samoa, designated a no-take Marine Protected Area that sees the protection of 2.25 square kilometers of ocean. Because little is known regarding the status of living marine communities in the area, and at the request of the American Samoa Department of Marine and Wildlife Resources, NOAA scientists conducted surveys to assess the status of the benthic communities and establish a baseline against which to compare temporal change. The benthic cover data described here were generated from the quantitative analysis of photoquadrat benthic images using image analysis software, whereby random points are projected on each image and the benthic elements falling directly underneath each point are identified. The images were collected at 18 randomly selected stratified sites in Fagamalo in 2015 during belt transect surveys of coral demography by the NOAA Coral Reef Ecosystem Program (CREP). The benthic cover data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive. The benthic images and coral demography data are described and archived separately. |
Purpose: |
These data were generated from benthic surveys to establish a comprehensive baseline for benthic composition and coral demographics, and are part of a NOAA Coral Reef Conservation Program (CRCP) funded project, entitled: "Coral reef ecosystem monitoring training and capacity building to support improved resource management in American Samoa." |
Other Citation Details: |
Lozada-Misa P, Schumacher BD, Vargas-Angel B. 2017. Analysis of benthic survey images via CoralNet : a summary of standard operating procedures and guidelines. Pacific Islands Fisheries Science Center, PIFSC Administrative Report, H-17-02, 169 p. https://doi.org/10.7289/V5/AR-PIFSC-H-17-02. |
Supplemental Information: |
An informal report was prepared by the NOAA Coral Reef Ecosystem Program (CREP) and submitted to the American Samoa Department of Marine and Wildlife Resources (DMWR) in 2017. The report includes the data for Fagamalo described here, as well as data collected in April 2016 by the NOAA CREP fish team. "Summary Report of Baseline Surveys for Benthic and Fish Communities in the Fagamalo No-Take Marine Protected Area, American Samoa" https://data.nodc.noaa.gov/coris/library/NOAA/CRCP/NMFS/PIFSC/Projects/1083/Fagamalo_summary_CREP.pdf |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
biota
|
UNCONTROLLED | |
CoRIS Discovery Thesaurus | Numeric Data Sets > Benthic |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Vegetation > Algae > Algal Cover |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Vegetation > Algae > Crustose Coralline Algae |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Vegetation > Algae > Encrusting Macroalgae |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Vegetation > Algae > Fleshy Macroalgae |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Vegetation > Algae > Turf Algae |
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 |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Benthos Analysis > Transect Monitoring |
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 > Photographic Analysis |
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 > Coastal Processes > Coral Reefs > Coral Reef Ecology > Coral Cover |
CoRIS Theme Thesaurus | EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Hard Coral Cover |
CoRIS Theme Thesaurus | EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Octocoral Cover |
CRCP Project | 1083 |
CRCP Project | American Samoa |
CRCP Project | Coral reef ecosystem monitoring training and capacity building to support improved resource management in American Samoa |
NODC DATA TYPES THESAURUS | REEF AND/OR BOTTOM REGIME - PERCENT COVER |
NODC PROJECT NAMES THESAURUS | Coral Reef Conservation Program |
NODC PROJECT NAMES THESAURUS | CORAL REEF STUDIES |
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 | 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 > Fagamalo (14S170W0047) |
CoRIS Place Thesaurus | OCEAN BASIN > Pacific Ocean > Tutuila Island > Fagamalo (14S170W0047) |
NODC SEA AREA NAMES THESAURUS | South Pacific Ocean |
Physical Location
Organization: | Pacific Islands Fisheries Science Center |
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City: | Honolulu |
State/Province: | HI |
Country: | USA |
Data Set Information
Data Set Scope Code: | Data Set |
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Data Set Type: | CSV Files |
Maintenance Frequency: | None Planned |
Data Presentation Form: | Table (digital) |
Entity Attribute Overview: |
Raw survey data includes metadata for each survey; site characteristics; unique image name and individual point observations identified at three functional group levels of benthic cover: Tier 1 (e.g., hard coral, macroalgae, etc.), Tier 2 (e.g., massive, branching, foliose, encrusting, etc.), and Tier 3 (e.g., Astreopora sp, Favia sp, etc.). |
Entity Attribute Detail URL: | https://www.fisheries.noaa.gov/inport/item/51068 |
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 Set Credit
Date Effective From: | 2015 |
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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 |
Data Steward
Date Effective From: | 2015 |
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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
Date Effective From: | 2018 |
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Date Effective To: | |
Contact (Organization): | NOAA National Centers for Environmental Information (NCEI) |
Email Address: | ncei.info@noaa.gov |
URL: | NCEI Contact Information |
Metadata Contact
Date Effective From: | 2015 |
---|---|
Date Effective To: | |
Contact (Person): | DesRochers, Annette M |
Address: |
1845 Wasp Blvd. Honolulu, HI 96818 USA |
Email Address: | annette.desrochers@noaa.gov |
Phone: | (808)725-5461 |
Business Hours: | 8 am - 5 pm |
Contact Instructions: |
Email preferred |
Originator
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. |
Point of Contact
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 |
Extents
Currentness Reference: | Ground Condition |
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Extent Group 1
Extent Description: |
Fagamalo, Tutuila, American Samoa |
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Extent Group 1 / Geographic Area 1
W° Bound: | -170.81195363 | |
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E° Bound: | -170.79879018 | |
N° Bound: | -14.28060332 | |
S° Bound: | -14.29253127 | |
Description |
Extent of underwater surveys at Fagamalo, Tutuila, American Samoa in 2015. |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2015-10-26 |
End: | 2015-11-13 |
Description: |
Time frame of surveys conducted at Fagamalo, Tutuila, American Samoa |
Access Information
Security Class: | Unclassified |
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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). Coral reef ecosystem marine protected area monitoring in Fagamalo, American Samoa: benthic percent cover derived from analysis of benthic images collected during belt transect surveys of coral demography in 2015. NOAA National Centers for Environmental Information. https://www.fisheries.noaa.gov/inport/item/31621 |
Metadata Access Constraints: |
None |
Metadata Use Constraints: |
None |
Distribution Information
Distribution 1
Download URL: | https://accession.nodc.noaa.gov/0169724 |
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Distributor: | NOAA National Centers for Environmental Information (NCEI) (2018 - Present) |
File Name: | MV_BIA_CNET_ANALYSIS_DATA_FAGAMALO_2015.csv |
Description: |
Benthic cover data derived from analysis of benthic images collected during belt transect surveys conducted by the NOAA Coral Reef Ecosystem Program (CREP) in Fagamalo, Tutuila, American Samoa in 2015. |
File Date/Time: | 2017-12-21 00:00:00 |
File Type (Deprecated): | csv (comma-separated values) |
Distribution Format: | CSV - Comma Separated Values (Text) |
URLs
URL 1
URL: | https://coralnet.ucsd.edu/ |
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URL Type: |
Online Resource
|
Description: |
CoralNet home page. The online tool used to analyze the benthic images for benthic cover. |
URL 2
URL: | https://data.nodc.noaa.gov/coris/library/NOAA/CRCP/NMFS/PIFSC/Projects/1083/Fagamalo_summary_CREP.pdf |
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URL Type: |
Online Resource
|
File Resource Format: | |
Description: |
Summary Report of Baseline Surveys for Benthic and Fish Communities in the Fagamalo No-Take Marine Protected Area, American Samoa, prepared by the NOAA Coral Reef Ecosystem Program (CREP) and submitted to the American Samoa Department of Marine and Wildlife Resources (DMWR). |
Technical Environment
Description: |
PIFSC Oracle database view: MV_BIA_CNET_ANALYSIS_DATA SELECT * FROM MV_BIA_CNET_ANALYSIS_DATA WHERE OBS_YEAR = 2015 AND SITE IN (SELECT SITE FROM LIST_OF_SITES WHERE COMMENT_ = 'FAGAMALO') |
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Data Quality
Accuracy: |
Data sets derived from image analysis are highly reliable within the stipulated taxonomic context. Each time a production run is performed for a region a calibration exercise is conducted by all staff that will participate in that round of image analysis classification. Usually 100-150 photos are selected from the photos being processed as part of the production run series, or other region-relevant photo streams. Then, image analysis software assigns 10 random fixed points per photo. Each photo analyst is asked to classify the same set of points in each of the photos used as part of the calibration exercise. The goal of the calibration exercise is to assess inter-observer variability. Inter-observer variability rates are available upon request for each production run. |
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Completeness Report: |
The data set derived from the image analysis is as good as the images themselves; poor images with low contrast, inappropriate white balance, or out of focus may have to be discarded. Therefore, percent cover estimates for some sites may derive from differing number of points between sites. Although the analysis process is statistically robust to allow for differing n (points) between sites, users should be aware of this limitation. Classification is completed to the functional group/genus level (Tier 3). |
Conceptual Consistency: |
The same method of image analysis was used at each surveyed site. |
Quality Control Procedures Employed: |
Quality control is enforced by means of point-to-point, inter-observer calibration exercises that are conducted before each image analysis production series. Training modules and standard operating procedures have also been developed and documented to ensure improved performance and consistent imagery analysis results produced by multiple analysts. |
Data Management
Have Resources for Management of these Data Been Identified?: | Yes |
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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 methodology to analyze benthic imagery using CoralNet to derive benthic cover values. |
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Sources
Lozada-Misa P, Schumacher BD, Vargas-Angel B. 2017. Analysis of benthic survey images via CoralNet : a summary of standard operating procedures and guidelines. Pacific Islands Fisheries Science Center, PIFSC Administrative Report, H-17-02, 169 p. https://doi.org/10.7289/V5/AR-PIFSC-H-17-02.
Contact Type: | Organization |
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Contact Name: | Pacific Islands Fisheries Science Center, PIFSC |
Citation URL: | https://repository.library.noaa.gov/view/noaa/14205 |
Source Contribution: |
The published benthic image analysis SOP using CoralNet. |
Process Steps
Process Step 1
Description: |
Still photographs were collected during belt transect surveys of coral demography to record the benthic community composition at predetermined points along the transect lines with a high-resolution digital camera mounted on a pole. 30 photoquadrat images were collected at each site. The photoquadrat surveys were conducted along two, independent 18 meter transects. Photos of the benthic substrate were taken at one meter intervals starting at meter 1, along the left hand side of each 18 meter transect (15 images/transect; 30 images total; Rep A and B). The benthic photoquadrat images were analyzed by using the web-based annotation tool CoralNet (Beijbom et al. 2016). CoralNet assigns 10 random points per photo and the benthic elements falling directly underneath each point is identified to three functional group levels: Tier 1 (e.g. hard coral, macroalgae, etc.), Tier 2 (e.g. Hard coral by morphology = massive, branching, etc.), and Tier 3 (e.g. Hard coral by genus and morphology). The detailed list of each functional group level or tier is included in the benthic image analysis classification scheme. See the published standard operating procedures for further details. |
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Source: | Lozada-Misa P, Schumacher BD, Vargas-Angel B. 2017. Analysis of benthic survey images via CoralNet : a summary of standard operating procedures and guidelines. Pacific Islands Fisheries Science Center, PIFSC Administrative Report, H-17-02, 169 p. https://doi.org/10.7289/V5/AR-PIFSC-H-17-02. |
Child Items
Rubric scores updated every 15m
Type | Title | |
---|---|---|
Entity | Benthic Image analysis classification scheme | |
Entity | Table: MV_BIA_PERC_COVER_PHOTO_STR |
Related Items
Item Type | Relationship Type | Title |
---|---|---|
Data Set (DS) | Cross Reference |
Coral reef ecosystem marine protected area monitoring in Fagamalo, American Samoa: benthic images collected during belt transect surveys in 2015 |
Data Set (DS) | Cross Reference |
Coral reef ecosystem marine protected area monitoring in Fagamalo, American Samoa: comprehensive assessment of coral demography (adult and juvenile corals) from belt transect surveys in 2015 |
Catalog Details
Catalog Item ID: | 31621 |
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GUID: | gov.noaa.nmfs.inport:31621 |
Metadata Record Created By: | Annette M DesRochers |
Metadata Record Created: | 2016-03-21 18:20+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2024-10-03 18:16+0000 |
Metadata Record Published: | 2020-01-13 |
Owner Org: | PIFSC |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2020-01-13 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2021-01-13 |