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Structure from motion images collected during marine debris surveys at coral reef sites entangled with fishing nets at Pearl and Hermes Atoll in the Northwestern Hawaiian Islands from 2018/09/24 to 2018/10/03


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            title:  Structure from motion images collected during marine debris surveys at coral reef sites entangled with fishing nets at Pearl and Hermes Atoll in the Northwestern Hawaiian Islands from 2018/09/24 to 2018/10/03
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                date:  2020-06-17
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 NOAA National Centers for Environmental Information
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        abstract:  The photographs described in this dataset were collected using a Structure from Motion (SfM) approach during in-water marine debris swim surveys conducted by snorkelers in search of derelict fishing nets. Surveys were conducted by the NOAA Fisheries, Ecosystem Sciences Division (ESD) from September 24 to October 3, 2018 at Pearl and Hermes Atoll during an ESD-led marine debris mission to the Northwestern Hawaiian Islands (NWHI) aboard the NOAA Ship Oscar Elton Sette. The lagoon at Pearl and Hermes was surveyed equally across the spatial gradient, from locations where derelict fishing nets are common to locations where derelict fishing nets have never been observed. During the 2018 mission, only a subset of marine debris surveys resulted in a SfM survey. Fishing nets were located during swim surveys and selected for SfM if the net was interacting with coral or hard substrate, the depth of the net was within ~1–4 m of the surface, and the area of the net fit within the 9 sq. meter SFM survey plot. A complete SfM survey is comprised of three sets of images. Two sets were taken at each net-impact site, one series “before” and one series “after” the fishing net was removed from the reef. A final set was taken at a paired “control” site that was selected ≥50 m away from the net-impact site. During a SFM survey, a permanent 3 x 3 m plot was established around the center of the fishing net, and the survey plot was photographed using a back and forth swim pattern (“before” photos) for later processing using a SfM approach. The fishing net was then removed and the same area was photographed again in the same way (“after” photos). The paired control site was also photographed using the same method (“control” photos).
        purpose:  The Papahānaumokuākea Marine National Monument (PMNM) includes the 1200 nautical mile chain of atolls and islets known as the Northwestern Hawaiian Islands (NWHI) that are geographically positioned as a repository for marine debris. Marine debris circulates within the North Pacific Subtropical Gyre until it encounters the atolls of the NWHI. The Ecosystem Sciences Division (ESD) at NOAA Fisheries has conducted both ship- and shore-based missions in the NWHI to survey for and remove derelict fishing gear and many other types of marine debris. Exploratory and opportunistic efforts began in 1996 that evolved into ~annual cruises. The collected photographs were processed using a structure from motion (SfM) approach to create orthophotos and analyzed in GIS for benthic cover. The purpose of the Structure from Motion (SfM) surveys at Pearl and Hermes Atoll is to understand whether derelict fishing nets significantly alter the benthic community composition of the reef. In addition, we investigated how net size and fouling level may vary the severity of this impact. This study leveraged SfM, an emerging photogrammetry technique, to allow efficient data collection alongside marine debris survey and removal efforts.
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                            linkage: https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
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                            name:  GCMD Keyword Forum Page
                            description:  Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 18. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
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            otherConstraints:  Cite as: Ecosystem Sciences Division, Pacific Islands Fisheries Science Center (2020). Structure from motion images collected during marine debris surveys at coral reef sites entangled with fishing nets at Pearl and Hermes Atoll in the Northwestern Hawaiian Islands from 2018/09/24 to 2018/10/03. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/PIFSC-SfM-Images-HI. Accessed [date].
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                title:  Pacific Islands Fisheries Science Center, 2022: Structure from motion images collected during marine debris surveys at coral reef sites entangled with derelict fishing nets at Pearl and Hermes Atoll in the Northwestern Hawaiian Islands in 2018 and 2021, https://www.fisheries.noaa.gov/inport/item/59423.
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                    date:  2022
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                      Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1347 US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center (NMFS/PIFSC)
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                title:  Suka, R., Huntington, B., Morioka, J., O’Brien, K., & Acoba, T. (2020). Successful application of a novel technique to quantify negative impacts of derelict fishing nets on Northwestern Hawaiian Island reefs. Marine Pollution Bulletin, 157, 111312. https://doi.org/10.1016/j.marpolbul.2020.111312
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                            name: https://doi.org/10.1016/j.marpolbul.2020.111312
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                    name:  Marine Pollution Bulletin
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                title:  United States. National Marine Fisheries Service, & Pacific Islands Fisheries Science Center (U.S.). (2020). 2018 Marine Debris Removal and Assessment in the Northwestern Hawaiian Islands. United States. National Marine Fisheries Service, Pacific Islands Fisheries Science Center (U.S.). https://doi.org/10.25923/f19b-je14
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                            description:  NOAA Central Library: Related document
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                title:  Suka, R., Asbury, M., Gray, A. E., Winston, M., Oliver, T. (T. A., & Couch, C. S. (2019). Processing Photomosaic Imagery of Coral Reefs Using Structure-from-Motion Standard Operating Procedures. Pacific Islands Fisheries Science Center (U.S.). https://doi.org/10.25923/h2q8-jv47
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                            name: https://doi.org/10.25923/h2q8-jv47
                            description:  NOAA Central Library: Technical Memorandum
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                title:  Structure from motion images collected during marine debris surveys at coral reef sites entangled with fishing nets at Pearl and Hermes Atoll in the Northwestern Hawaiian Islands from 2018/09/24 to 2018/10/03; SfM Debris: images. NCEI Accession Numbers 0210740, 0210811 and 0210812. 2020
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                    date:  2020
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                      Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1670 US DOC; NOAA; OAR; OSS; NOAA Central Library
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                    name:  NCEI Accession Numbers 0210740, 0210811 and 0210812
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                    beginPosition:  2018-09-24
                    endPosition:  2018-10-03
        supplementalInformation:  Accessions: 0210740, 0210811, and 0210812
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                fees:  In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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                description:  NCEI Accession 0210740 v1.1 was published.
                dateTime:
                  DateTime:  2020-06-17T02:49:05Z
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                description:  NCEI Accession 0210811 v1.1 was published.
                dateTime:
                  DateTime:  2020-06-18T07:37:43Z
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                description:  NCEI Accession 0210812 v1.1 was published.
                dateTime:
                  DateTime:  2020-06-19T02:39:37Z
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            organisationName:  NOAA National Centers for Environmental Information
            role:  (CI_RoleCode) custodian
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                code:  NOAA Ship Oscar Elton Sette
            description:  Title: NOAA Ship Flag: United States of America Vessel Type: Research Vessel; Ice Strengthened DOB: Aug 1988 IMO: 8835097 Former Name: ADVENTUROUS (2003) http://www.moc.noaa.gov/os/index.html Submitted to ICES on 2013-12-18.
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