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Found 631 dataset(s) matching "visual estimate".
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Belt transects (BLT) are a non-invasive underwater-survey method that enumerates the diverse components of diurnally active shallow-water reef fish assemblages. At each Rapid Ecological Assessment...
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The data described here are raw corallivory, or coral predation, data from in situ visual surveys as well as derived corallivory data from Structure-from-Motion (SfM) imagery collected during...
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The stationary point count (nSPC) method is used to conduct reef fish surveys in the Hawaiian and Mariana Archipelagos, American Samoa, and the Pacific Remote Island Areas as part of NOAA's...
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This portion of the data release presents riparian plant species richness (number of unique taxa) data from plots sampled in the Elwha River estuary, Washington, in 2007 and 2014. In August 2007,...
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Coral reef fish and benthos were surveyed at 150 shallow-water coral reef sites across the north coast of Timor-Leste and around Atauro Island in June 2013 during a 21-day survey mission. This...
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A team from the Pacific Islands Fisheries Science Center (PIFSC), Coral Reef Ecosystem Program (CREP) deployed on a two-week research cruise in November 2015 to evaluate the impacts of the 2015...
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<p dir="ltr">Note: Updated on 02/28/25 to include Ag Commons Winter 2024 data file.</p><p dir="ltr"><br></p><p dir="ltr">In all files, temperature data are in degrees centigrade and CO2 data are...
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The data described here result from coral bleaching surveys across the Hawaiian Archipelago from October 02 to November 18, 2015. The data provide survey-level information on percent live coral...
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Coral belt transect surveys, focused at quantifying the relative abundance, density, and size-class distribution of the anthozoan and hydrozoan corals, as well as the condition and health state of...
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Global Observation Research Initiative in Alpine Environments (GLORIA) Vegetation data package from 2009-2021 at Great Sand Dunes National Park, Pecos Wilderness, Rocky Mountain National Park, and...
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From 2011-2018 USGS biologists recorded vegetation and biological soil crust (BSC) cover by species and tracked survival of tagged individual plants (388 in total) across 40 locations where paired...
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<p dir="ltr">Data reported in research published in Crop Science, “Mapping the quantitative field resistance to stripe rust in a hard winter wheat population ‘Overley’ × ‘Overland.’” Authors are...
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The coral demographic data described here result from belt transect surveys conducted by the Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD)---formerly the...
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These data represent the Kaibab Plateau bison herd's seasonal ranges on the North Rim of Grand Canyon National Park and the Kaibab National Forest. The Kaibab Plateau bison make seasonal movements...
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The data release presents observations of riparian vegetation, topography, sediment quality, and river corridor geomorphology in four river reaches of the Lower Virgin River extending downstream...
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The coral demographic data described here result from belt transect surveys conducted by the Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) -- formerly the...
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During 2018, USGS staff collected debris from the floors of 30 shipping containers located in Honolulu on the island of Oʻahu and destined for Wake Atoll as part of a study to understand...
