Data provided by National Oceanic and Atmospheric Administration
This data package contains information and maps showing the geology and biology of select submerged lands (0 to 50 meters deep) around Navy Base Guam (NBG) and Haputo Ecological Reserve Area (ERA) Guam, Mariana Islands. This information and maps were developed using benthic information from underwater photographs, environmental predictor variables derived from satellite imagery and bathymetry, and machine learning modeling approaches. From this process, two types of map products were created. The first type describes the spatial distribution of 7 substrate and 12 biological cover types, where each grid cell denotes the probability that a given habitat is present (0 to 100%). The second product was a classified map depicting the 7 most common combinations of substrate and cover types. The performance and accuracy of these products were evaluated by local experts and by using an independent of underwater photographs. The overall accuracy of the classified map was 86.6%. The substrate and cover predictions had little bias (𝑥𝑥̅ error = ‐2% ±1% SE), good to excellent ability to discriminate between presences and absences (𝑥𝑥̅ area under the curve = 0.86 ±0.02 SE) and explained over a quarter of the variation in the data (𝑥𝑥̅ percent deviance explained = 26.9% ±5.1 SE).
In Haputo ERA, ‘Pavement, Mixed Algae’ was the most abundant habitat type, comprising 54.5% (1.1 km2) of the area. The largest, continuous patches were located on the forereef along the coastline. Live coral was distributed throughout the ERA, with encrusting corals being most prevalent. No seagrass or mangroves were present. Around NBG, ‘Sand, Bare’ was the most abundant habitat type, comprising 42.3% (8.2 km2) of the area. The largest, continuous patches were in the eastern portion of Outer Apra Harbor, including Sasa Bay and south of Cabras Island. Live coral was common and most prevalent from San Luis Point around Point Udall to Acapa Point. Halodule uninervis seagrass was only documented outside Apra Harbor at 2 sites approximately 500 m north of Acapa Point. Mangroves were found only in nearshore areas in Sasa Bay and Inner Apra Harbor. No Endangered Species Act (ESA) protected corals or nuisance species (i.e., C. vieillardi) were photographed in either project areas. One crown of thorns sea star was photographed in Haputo ERA. The prevalence of coral bleaching, COTS scarring and marine debris were low (HTML Markup Was Removed
About this Dataset
Updated: 2024-08-20
Metadata Last Updated:
2024-08-06T09:51:07.128Z
Date Created:
N/A
Data Provided by:
Dataset Owner:
N/A
| Title | NCCOS Mapping: Characterizing Submerged Lands Around Naval Base Guam, Mariana Islands, 2016-01-11 to 2022-05-13 (NCEI Accession 0292018) |
|---|---|
| Description | This data package contains information and maps showing the geology and biology of select submerged lands (0 to 50 meters deep) around Navy Base Guam (NBG) and Haputo Ecological Reserve Area (ERA) Guam, Mariana Islands. This information and maps were developed using benthic information from underwater photographs, environmental predictor variables derived from satellite imagery and bathymetry, and machine learning modeling approaches. From this process, two types of map products were created. The first type describes the spatial distribution of 7 substrate and 12 biological cover types, where each grid cell denotes the probability that a given habitat is present (0 to 100%). The second product was a classified map depicting the 7 most common combinations of substrate and cover types. The performance and accuracy of these products were evaluated by local experts and by using an independent of underwater photographs. The overall accuracy of the classified map was 86.6%. The substrate and cover predictions had little bias (𝑥𝑥̅ error = ‐2% ±1% SE), good to excellent ability to discriminate between presences and absences (𝑥𝑥̅ area under the curve = 0.86 ±0.02 SE) and explained over a quarter of the variation in the data (𝑥𝑥̅ percent deviance explained = 26.9% ±5.1 SE). In Haputo ERA, ‘Pavement, Mixed Algae’ was the most abundant habitat type, comprising 54.5% (1.1 km2) of the area. The largest, continuous patches were located on the forereef along the coastline. Live coral was distributed throughout the ERA, with encrusting corals being most prevalent. No seagrass or mangroves were present. Around NBG, ‘Sand, Bare’ was the most abundant habitat type, comprising 42.3% (8.2 km2) of the area. The largest, continuous patches were in the eastern portion of Outer Apra Harbor, including Sasa Bay and south of Cabras Island. Live coral was common and most prevalent from San Luis Point around Point Udall to Acapa Point. Halodule uninervis seagrass was only documented outside Apra Harbor at 2 sites approximately 500 m north of Acapa Point. Mangroves were found only in nearshore areas in Sasa Bay and Inner Apra Harbor. No Endangered Species Act (ESA) protected corals or nuisance species (i.e., C. vieillardi) were photographed in either project areas. One crown of thorns sea star was photographed in Haputo ERA. The prevalence of coral bleaching, COTS scarring and marine debris were low (HTML Markup Was Removed |
| Modified | 2024-08-06T09:51:07.128Z |
| Publisher Name | N/A |
| Contact | N/A |
| Keywords | 0292018 , BENTHIC COMMUNITIES , biological data , CORAL , HABITAT - BENTHIC , REEF AND/OR BOTTOM REGIME - PERCENT COVER , camera , LIDAR , multibeam sonar , photograph , satellite sensor - general , biological , GIS product , in situ , model output , US DOC; NOAA; NOS; National Centers for Coastal Ocean Science , US DOC; NOAA; NOS; National Centers for Coastal Ocean Science , CORAL REEF STUDIES , North Pacific Ocean , Philippine Sea , oceanography , Guam Territorial Government; Bureau of Statistics and Plans , Guam Territorial Government; Division of Aquatic and Wildlife Resources , US DOC; NOAA; NOS; Office for Coastal Management , US DOC; NOAA; National Marine Fisheries Service , US DOD; US Navy; Naval Facilities Engineering Command Marina , University of Guam , DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce , NCCOS Mapping: Bathymetric Lidar Waveform Metrics for Saipan, CNMI, 2019-07-11 to 2019-07-31 , NCCOS Mapping: Characterizing Benthic Habitats West of Saipan, Commonwealth of the Northern Mariana Islands (CNMI), 2018-11-05 to 2022-04-29 , Geographic Information > Backscatter , Geographic Information > Bathymetry , Geographic Information > Biology , Geographic Information > Habitats , Geographic Information > LiDAR , Geographic Information > Marine Debris , Geographic Information > Marine Management Areas , Geographic Information > Reef Locations , Map Images > Backscatter , Map Images > Bathymetry , Map Images > Coral Mapping , Map Images > Habitats , Numeric Data Sets > Backscatter , Numeric Data Sets > Bathymetry , Numeric Data Sets > Benthic , Numeric Data Sets > Biology , Numeric Data Sets > Geology , Numeric Data Sets > Habitats , Visual Images > Biology , Visual Images > Corals , Visual Images > Habitats , Visual Images > Mangrove , Visual Images > Seagrass , EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat , EARTH SCIENCE > Biosphere > Ecological Dynamics > Predation > Coral Predation > Crown-of-thorns Starfish , EARTH SCIENCE > Biosphere > Vegetation > Algae > Algal Cover , EARTH SCIENCE > Biosphere > Vegetation > Algae > Calcareous Macroalgae , EARTH SCIENCE > Biosphere > Vegetation > Algae > Coralline Algae , EARTH SCIENCE > Biosphere > Vegetation > Algae > Crustose Coralline Algae , EARTH SCIENCE > Biosphere > Vegetation > Algae > Encrusting Macroalgae , EARTH SCIENCE > Biosphere > Vegetation > Algae > Turf Algae , EARTH SCIENCE > Biosphere > Zoology > Corals , EARTH SCIENCE > Biosphere > Zoology > Corals > ESA Listed Species , EARTH SCIENCE > Biosphere > Zoology > Corals > Feeding Scars on Hard Coral > COTS , EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > GIS , EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Base map > Satellite Imagery , EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Habitat Mapping , EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > geomorphology Mapping , EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Photographic Analysis , EARTH SCIENCE > Biosphere > Zoology > Sponges , EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Backscatter , EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry , EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Hard Seafloor Substrate , EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Rugosity , EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Slope , EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Soft Seafloor Substrate , EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth , EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs , EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Benthic biology , EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats , EARTH SCIENCE > Oceans > Coastal Processes > Mangroves , EARTH SCIENCE > Oceans > Marine Biology > Coral , EARTH SCIENCE > Oceans > Marine Biology > Marine Plants > Seagrass , EARTH SCIENCE > BIOLOGICAL CLASSIFICATION , EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC , EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS > CORAL REEFS , NCCOS Research Data Type > Derived Data Product , NCCOS Research Data Type > Field Observation , NCCOS Research Data Type > Geospatial , NCCOS Research Priority > Marine Spatial Ecology , NCCOS Research Topic > Habitat Mapping , Benthic Habitat Maps , Imagery , Training and Validation Data , other - remotely sensed , CAMERA > CAMERA , LIDAR > Light Detection and Ranging , MBES > Multibeam Mapping System , global positioning system (Trimble Geo 7X GPS) , light detection and ranging , multibeam echosounder , multispectral sensor , ultra-short baseline acoustic positions system (Seatrac Blueprint x010 USBL) , underwater multispectral camera (Sony alpha 7 DSLR) , COUNTRY/TERRITORY > United States of America > Guam > Apra Harbour (13N144E0051) , COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000) , COUNTRY/TERRITORY > United States of America > Guam > Haputo (13N144E0006) , OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Apra Harbour (13N144E0051) , OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000) , OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Haputo (13N144E0006) , OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN , NCCOS Research Location > Region > Pacific Ocean , NCCOS Research Location > U.S. States and Territories > Mariana Islands > Guam , Haputo Ecological Reserve Area , Orote Ecological Reserve Area , Pacific Ocean , Sasa Bay Reserve , environment , oceans , imageryBaseMapsEarthCover , biota |
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