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Found 1571 dataset(s) matching "substrates".
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This portion of the data release presents sediment grain-size data from samples collected on the Elwha River delta, Washington, in August 2022 (USGS Field Activity 2022-638-FA). Surface sediment...
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This shapefile contains habitat polygons identifying the dominant and major geomorphological structure, biological type and percent cover, and geologic zone for 11 square kilometers of Olowalu...
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In March of 2008, the U.S. Geological Survey and St. Johns River Water Management District (SJRWMD) conducted geophysical surveys in Lakes Avalon, Big, Colby, Helen, Johns, Prevatt, Searcy,...
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This data release provides census counts of benthic foraminifera in sediments of a core obtained off San Francisquito Creek in South San Francisco Bay.
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This data release provides census counts of diatoms in sediments of a core obtained off San Francisquito Creek in South San Francisco Bay.
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This data release provides census counts of palynomorphs in sediments of a core obtained off San Francisquito Creek in South San Francisco Bay.
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This data release provides the measurement of anthropogenic metals and other elements in sediments of a core obtained off San Francisquito Creek in South San Francisco Bay.
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This data release provides radiocarbon measurements from a core obtained off San Francisquito Creek in South San Francisco Bay.
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This data release provides 210Pb and 137Cs measurements in sediments of a core obtained off San Francisquito Creek in South San Francisco Bay.
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This DVD-ROM contains copies of the navigation and field chirp subbottom data collected aboard the R/V Seaward Explorer, from 7-25 May, 1995. The coverage is in the New York Bight area. This...
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In September of 2010, the U.S. Geological Survey conducted a geophysical survey offshore of Cat Island, Miss., to investigate the geologic controls on barrier island framework. This report serves...
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Navigation data were recorded for the R/V San Lorenzo (RVSL; receive vessel) during USGS field activity 2021-619-FA in April of 2021 off the coast of Santa Cruz, California. Data were collected as...
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This data release presents sediment grain-size data from samples collected from core S3-15G, a 4.72-m long gravity core collected at a depth of 3,491 meters on the western levy of the Monterey Fan...
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This portion of the data release presents sediment grain-size data from cores and surface samples collected from the Salmon River estuary in 2017 and 2018. In total, 60 samples were collected from...
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This part of USGS Data Series 935 (Cochrane, 2014) presents observations from underwater video collected in the Offshore of Burien, California, map area, a part of the Southern Salish Sea Habitat...
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Seventy six parent and alkylated polycyclic aromatic compounds, including polycyclic aromatic hydrocarbons (PAHs), were quantified in watershed and reef sediment from Olowalu, Maui, in February...
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Fine-sediment elemental chemistry, short-lived cosmogenic radionuclides (Beryllium-7, Cesium-137, and Lead-210), charcoal counts, and total organic carbon contents were quantified to describe...
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The Center for Coastal Monitoring and Assessment (CCMA) conducted the first year of an ongoing scientific research mission on board NOAA Ship Nancy Foster. The purpose of this cruise was to...
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This report focuses on the identification and description of essential habitats of key species inhabiting the New York Bight watershed study area. The study area includes the watersheds and water...
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The Benthic Marine Communities Monitoring Protocol is implemented in four parks in the Pacific and addresses two monitoring questions: What are the changes over time in the composition (e.g.,...
