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 (12 items)
Capturing (animals) (12 items)
Drilling and coring (16 items)
Plant and animal tagging (5 items)
Plot sampling (2 items)
Sexing (plants & animals) (2 items)
Specimen collecting (10 items)
Transect sampling (1 items)
Water sampling (42 items)

Fish inventories (6 items)

Results 81 - 90 of 105 listed by similarity [list alphabetically]

The USGS role in Total Maximum Daily Load (TMDL) assessments [New Window]: 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 challenges of capturing and tagging manatees along west coastal Florida [New Window]: Description of method of capturing and tagging manatees in western Florida for tracking by satellite telemetry. Presented at a forum on telemetry.
The whooping crane report [New Window]: 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 [New Window]: 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 [New Window]: 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.
Tualatin River basin water quality assessment [New Window]: 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. Gulf of Mexico Shoreline Change [New Window]: Interactive map of the Gulf of Mexico coast reflecting shoreline changes.
USGS East-coast sediment analysis: analysis, procedures, database and georeferenced displays [New Window]: Grain-size analysis of marine sediments of the U.S. eastern coast with sampling and lab methods, surficial sediment database in three formats (Excel, Dbase IV, ASCII), and use of geographic mapping tools for visualizing sediment data layers.
Using strip-transect aerial surveys to estimate manatee abundance in the Ten Thousand Islands region of southwest Florida [New Window]: Report on use of strip-transect aerial surveys to obtain minimum manatee counts and distribution information in area of Ten Thousand Islands, Florida, with maps, diagrams, and information on method and results.
Water co-produced with coalbed methane in the Powder River Basin, Wyoming: preliminary compositional data [New Window]: Compositional data on water from 47 CBM wells sampled in the Powder River Basin, Wyoming. Data on major, minor, and trace elements are included.

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