Valid Values - Methods



     
  
  
   
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Category Code Description Source Reference Low level method Active Alias Modified By Modified Date
Measurement BIOHabitatMetric052 Number of Trichoptera Taxa present in the sample Y chmo469 06/04/2012
Measurement BIOHabitatMetric040 Percent of organisms that are sensitive to perturbation Y chmo509 06/04/2012
Collection Electrofish-boat Fish collection, electro-shock via boat-mounted unit Y CNEU461 12/30/2014
Measurement BIOHabitatMetric043 Number of organisms in the sample that are tolerant to perturbation Y chmo512 06/04/2012
Collection Niskin-HandClose Bottle, Niskin, hand-lowered by line to target (nominal) depth and hand-triggered to close via brass messenger. Y CNEU461 09/16/2020
Measurement BIOHabitatMetric044 Number of taxa in the sample that requires more than a year to complete one generation Y chmo501 06/04/2012
Preparation Rinsed Specimen rinsed three times with distilled/deionized water prior to analysis. Y CNEU461 04/12/2004
Measurement BIOHabitatMetric033 Taxa richness of those organisms considered to be sensitive to perturbation Y chmo507 06/04/2012
Collection PETERSEN Grab sampler, Petersen, size unspecified Y CNEU461 10/24/2005
Collection Niskin-RealtimeClose Bottle, Niskin, electronically triggered by field tech to close at target (nominal) depth, based on real-time pressure sensor measurement. Closure depth recorded by data logger and post-processed. Y CNEU461 09/16/2020
Collection DGT Diffusive gradients in thin films passive sampling device Y CNEU461 04/30/2015
Preservation IspAlcohol Isopropyl Alcohol Y CNEU461 01/05/2004
Measurement TRC-CALC Total Residual Chlorine (TRC) by Field Measurement of Manganese+TRC minus Manganese using a Residual Chlorine Meter Y mbac461 08/26/2024
Preparation FILTER.45um-GFF Water sample filtered with 0.45 micron (micrometer) glass fiber filter (GFF) Y KKIN461 01/25/2016
Measurement BIOHabitatMetric036 The number of taxa in the sample representing organisms that consume other organisms Y chmo484 06/04/2012
Collection CORE-IMPCT Corer, impact Y CNEU461 10/25/2005
Measurement BIOHabitatMetric034 Percent of organisms considered to be tolerant of various types of perturbation Y chmo508 06/04/2012
Preparation ID-COUNT-PREP500 500-organism count from minimum 2 of 30 6x6 cm square sub-sampling grid. Prepped in alcohol prior to observation under a dissecting microscope. Y CNEU461 03/29/2017
Measurement BIOHabitatMetric002 Number of taxa in the sample that breathe air directly rather than extracting it from water using gills. Y chmo495 06/04/2012
Measurement BIOHabitatMetric039 The percent of the sample represented by organsims that feed on attached periphyton (Scrapers) and organisms that feed on coarse organic matter from the substrate. Y chmo487 06/04/2012
Preparation SIEVE-25.4MM Sieved with 25.4 millimeter screen Y CNEU461 12/14/2009
Preservation ETHANOL95 Sample preserved in 95% ethanol-filled container upon collection Y CNEU461 11/05/2009
Collection PeriphytonCoarseVeg Periphyton Sampling Methods for composite sample containing material collected from Course Substrate + Emergent Vegetation or Submerged Vegetation Habitats Y CNEU461 03/04/2015
Preparation FILTER.45um Water sample filtered with 0.45 micron (micrometer) filter (material unspecified) Y FILTER.45M KKIN461 01/29/2016
Measurement BIOHabitatMetric046 Compares diversity by accounting for both richness and evenness of the sample. Generally this metric scores between 0 and 4.5. A higher score represents higher diversity. It is not used to compare sites, however since it is affected by changes in both the number of taxa and the relative abundance of those taxa. Y chmo478 06/04/2012
Preparation FILTER1.0um-GFF-BF-B Water samples filtered with 1.0 micron glass fiber filter (GFF), binder free (BF), borosilicate glass (B). Y CNEU461 11/09/2017
Collection FISH-LONGLINE Fish collection, with multiple hooks on a long line typically anchored to the bottom. Y CNEU461 06/02/2014
Collection ECKMAN Grab sampler, Eckman, size unspecified Y CNEU461 10/24/2005
Measurement BIOHabitatMetric048 The percent of organisms in the sample that have a pollution tolerance value greater than 8 (Klemm et al 2002). Y chmo513 06/04/2012
Collection CORE-EPA-SW5035 Corer, EPA SW-846 Method 5035 Core Sampler N Y CNEU461 01/31/2024
Measurement BIOHabitatMetric027 Compares richness between two sites where different numbers of individuals have been collected, its value can be greater than 1, while other diversity measures score between 0 and 1. Y chmo476 06/04/2012
Collection KEMMER-ACRYLIC Bottle, Kemmerer, Clear Acrylic Y CNEU461 12/18/2008
Collection OTTERTRAWL Fish or macroinvertebrate collection by netting, otter trawl Y KKIN461 10/23/2014
Measurement BIOHabitatMetric006 The percent of the sample represented by organisms that have adaptations to help them attach to surfaces in flowing water. Y chmo490 06/04/2012
Measurement BIOHabitatMetric042 Percent of organisms tolerant of perturbation Y chmo511 06/04/2012
Measurement FLOW-SPRINKLER Flow estimated by individual sprinkler head discharge rate X number of sprinkler heads. Y CNEU461 04/05/2023
Measurement ISE-Cl Chloride by Silver Chloride Ion-Selective Electrode Y ISE-Chloride CNEU461 06/10/2014
Preparation FILTER0.1um Sample filtered with 0.1 micron (micrometer) filter (material unspecified) Y CNEU461 07/30/2018
Collection CORE-SONIC Corer, Sonic drill sampler barrel Y CNEU461 06/23/2009
Collection SoilGasSubSlabTip Soil Gas or Vapor Sub-Slab Sampling Probe Tip Y CNEU461 08/16/2018
Collection US-DH-TEF Isokinetic depth-integrating USGS DH sampler with Teflon components (bottle, cap, nozzle). Y KKIN461 12/02/2013
Measurement BIOHabitatMetric049 The percent of the sample represented by organisms that can control the speed and direction of movement in the water column. Y chmo492 06/04/2012
Analysis ASTM-D5057-10 Standard Test Method for Screening Apparent Specific Gravity and Bulk Density of Waste ASTM Y CNEU461 09/07/2017
Measurement photometer Light attenuation or light intensity at depth by underwater photometer. Y CNEU461 11/06/2003
Measurement GWL-OIL-METER Product or groundwater level by electronic oil/water interface meter Y OIL-METER KKIN461 12/06/2018
Measurement BIOHabitatMetric024 Uses tolerance values to weight abundance in an estimate of overall pollution. Originally designed to evaluate organic pollution Y chmo504 06/04/2012
Preparation FILTER1.5um-GFF Water sample filtered with 1.5 micron (micrometer) glass fiber filter (GFF) Y KKIN461 01/25/2016
Analysis N-CALC-351.2-353.2 Total Nitrogen calculated by adding Total Kjeldahl Nitrogen by EPA351.2 (Semiautomated Colorimetry) and Nitrate-Nitrite by EPA353.2 (Colorimetric, Automated Cadmium Reduction). Y mbac461 08/26/2024
Analysis NBOD-CALC Nitrogenous Biochemical Oxygen Demand (NBOD) calculated from difference between Biochemical Oxygen Demand 5-Day (BOD5) and Carbonaceous Biochemical Oxygen Demand (CBOD). Y mbac461 08/26/2024
Measurement BIOHabitatMetric019 A measure of how evenly each taxon is represented in the sample. A community with equal numbers of individuals for each taxa present in the sample would be considered the most diverse community. Y chmo475 06/04/2012
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1503 records