USGS: Science Topics: field sampling

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Field sampling

Collecting pieces or specimens or making measurements or observations at determined intervals or areas. Results may be used as representative of the whole research area or population.

Subtopics:
Animal tracking (13 items)
Capturing (animals) (20 items)
Drilling and coring (20 items)
Plant and animal tagging (7 items)
Plot sampling (2 items)
Sexing (plants & animals) (3 items)
Specimen collecting (21 items)
Transect sampling (1 items)
Trenching (1 items)
Water sampling (51 items)

Fish inventories (10 items)

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Results 111 - 120 of 141 listed by similarity [list alphabetically]

The challenges of capturing and tagging manatees along west coastal Florida [More info]: Description of method of capturing and tagging manatees in western Florida for tracking by satellite telemetry. Presented at a forum on telemetry.
The USGS role in Total Maximum Daily Load (TMDL) assessments [More info]: Detailed information on Total Maximum Daily Load, the total quantity of a pollutant that a stream can carry and still conform to water quality standards, used as a measurement in the monitoring, assessment, and remediation of polluted waters.
The whooping crane report [More info]: Report on the captive breeding program at Patuxent Wildlife Research Center to help save endangered whooping cranes. Site links to natural history information on whooping cranes, why they are endangered, cool facts on cranes, and a photo gallery.
Toxic Substances Hydrology Program [More info]: Homepage for the Toxic Substances Hydrology Program, which provides scientific information on contaminated sites and on human and environmental health. Links to news, topical information, investigations, meetings, publications, and photos.
Toxicity and bioavailability of metals in the Missouri River adjacent to a lead refinery [More info]: Report (PDF format) on an evaluation of the potential environmental impacts of contaminated ground water from a metals refinery adjacent to the Missouri River in Omaha, Nebraska testing water and sediments for contaminants and toxicity.
Transport of water, carbon, and sediment through the Yukon River basin [More info]: Summarizes a water-quality study of one of the last great uncontrolled rivers in the world, which supplies runoff, sediment, and nutrients to the eastern Bering Sea and Chukchi Sea.
Tualatin River basin water quality assessment [More info]: Overview of project assessing water quality of the Tualatin River basin near Portland, Oregon with links to reports on chemical and nutrient levels and selected data on streamflow, water temperature, weather and precipitation.
U.S. Geological Survey protocol for sample collection in response to the Deepwater Horizon oil spill, Gulf of Mexico, 2010 [More info]: It is important that we collect samples consistently and properly to assure the quality of the information needed by decision makers. This report explains the procedures for sampling water, sediment, benthic invertebrates, and microorganisms.
U.S. Gulf of Mexico Shoreline Change [More info]: Interactive map of the Gulf of Mexico coast reflecting shoreline changes.
Use of Semipermeable Membrane Devices (SPMDs) in Petroleum Polluted Waters [More info]: Provides a brief discussion of issues surrounding the use and capabilities of SPMDs, which can be used in monitoring petroleum spills.

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