gov.noaa.nodc:0317414 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-08-12T19:01:09Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Dam Removal Biological Impacts in the Patapsco River, Maryland from 2009-2024 (NCEI Accession 0317414) 2026-08-12 publication 2026-08-12 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0317414 NCEI Archive Management System 0317414 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher NOAA National Centers for Environmental Information (NCEI) resourceProvider William Harbold Maryland Department of Natural Resources william.harbold@maryland.gov pointOfContact Non-tidal Assessment (MANTA) Division, Resource Assessment Service, Maryland Department of Natural Resources author tableDigital Data collected during biological monitoring before, during, and after the removals of Union, Simkins, and Bloede Dams on the Patapsco River, targeting Resident Fish, Anadromous Fish, Benthic Macroinvertebrate Assemblages, and American Eels, 2009-2024. Data collected under contract to American Rivers with NOAA funding, contract #CE18NOA057F pending NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0317414 Graphic not available. PNG 0317414 NCEI ACCESSION NUMBER 2026-07-08 publication LATITUDE LONGITUDE POLYCHLORINATED BIPHENYLS theme NODC DATA TYPES THESAURUS clock flow meter GPS scale instrument NODC INSTRUMENT TYPES THESAURUS in situ laboratory analyses model output satellite data theme NODC OBSERVATION TYPES THESAURUS NOAA National Centers for Environmental Information dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Chesapeake Bay place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian %BE %BO %GL %GR %LP %PO %RA %RI %RN %SI %SN ABDOM ABUNSQM ACREAGE AVGTHAL AVGWID AVG_VEL Abundance Area Area BE Area BO Area CB Area GL Area GR Area PO Area RA Area RI Area RN Area SI Area SN BAR_FORM BEDROCK BIOM_MSQ BRAIDED COBBLE COB_BAR Char_Table DATE_SPR DEEPOOL DEWATERROOT DEWATERWOOD Date Depth Distance from River Mouth (km) DomHab DomSub EMBEDDED EPI_SUB EXCLUDE EXPOOL EXRIFRUN EelNumber Effort (seconds) Embeddedness ErodedExtentL ErodedExtentR ErodedHeightL ErodedHeightR ErosionSeverityL ErosionSeverityR Estimated Length (mm) FIBISTRATA FIBI_05 Fish Taxa GRAVEL GRAV_BAR GRID GRIDS GamefishNumber Gear Type INSTREAMROOT INSTREAMWOOD INSTRHAB LEAFPACK LEN_SAMP LOGACRES LRGBOULD Length (mm) MACROPHYTE MAXDEPTH Mass (g) NUMBENTSP NUMBENTSPA NUMBROOK NUMGEOMIV NUMIS NUMLITH NUMROOT NUMROUND NUMSCULP NUMTOL N_TAXA OH_COVER OTHER OTHER_TYPE PABDOM PBROOK PGEOMIV POOLQUAL PROUND PSCULP PTOL P_IS P_LITH Pass RIFFLE RIFFQUAL ROOTWAD RUNGLIDE Relative Abundance SAND SAND_BAR SC_ABUNSQM SC_BAR SC_BIOM_MSQ SC_NUMBENTSPA SC_PABDOM SC_PBROOK SC_PGEOMIV SC_PROUND SC_PSCULP SC_PTOL SC_P_IS SC_P_LITH SHADING SHALPOOL SILTCLAY SITE SITEYR SITEYR-GRID SMLBOULD STRMAREA Sampling Notes Submerged TAXON TL TOTBIOM TOTCNT Transect UNDERCUT VEL_DPTH Velocity WOOD_DEB Width_m Year bibi_05 ndipt nephem nept nintol nscrape ntaxa pchiron pclimb pcling pdipt pephem pintol_urb pscrape pswim ptany sc_nephem sc_nept sc_nscrape sc_ntaxa sc_pchiron sc_pclimb sc_pcling sc_pdipt sc_pephem sc_pintol_urb sc_pscrape sc_pswim sc_ptany strata_r totchiron totclimb totcling totdipt totephem totind totintol_urb totscrape totswim tottany theme Provider Keywords CLOCKS GPS RECEIVERS > GPS RECEIVERS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian desktop computer desktop computer, meter tape, laser rangefinder digital scale handheld GPS handheld electronic flow meter meter stick meter stick, ruler meter stick/ruler meter tape meter tape, desktop computer meter tape, laser range finder ruler, fish board stopwatch, hour meter instrument Provider Instruments OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian DNMH88 Send2NCEI Submission Package ID Data in this archival information package are not currently available for public download from NCEI. Please contact NCEI directly for access to these data. accessLevel: restricted public otherRestrictions Cite as: Non-tidal Assessment (MANTA) Division, Resource Assessment Service, Maryland Department of Natural Resources (2026). Dam Removal Biological Impacts in the Patapsco River, Maryland from 2009-2024 (NCEI Accession 0317414). [indicate subset used]. NOAA National Centers for Environmental Information. Unpublished Dataset. https://www.ncei.noaa.gov/archive/accession/0317414. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. license This dataset has been dedicated to the public domain under the Creative Commons CC0 1.0 Universal (CC0 1.0) Public Domain Dedication. SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0) eng; USA utf8 environment oceans -76.875139 -76.641607 39.212895 39.332299 2009-05-01 2024-05-30 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Data in this archival information package are not currently available for public download from NCEI. Please contact NCEI directly for access to these data. Originator data format https://www.ncei.noaa.gov/archive/accession/0317414 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/317414 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page. offlineAccess https://www.ncei.noaa.gov/archive/accession/download/317414 HTTPS Web browser HTTPS Navigate directly to the URL for a descriptive web page. offlineAccess https://www.ncei.noaa.gov/contact HTTPS NOAA National Centers for Environmental Information Users may contact NCEI for more information and to request access to the archived data. User requests must be approved by NCEI and are subject to order fulfillment constraints. offlineAccess dataset Parameter or Variable: SITE (measured); Units: n/a; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Monitoring site number Parameter or Variable: Distance from River Mouth (km) (measured); Units: kilometers; Observation Category: satellite; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Distance upstream of confluence measured via satellite, expressed in kilometers Parameter or Variable: LATITUDE (measured); Units: decimal degrees; Observation Category: in situ; Sampling Instrument: handheld GPS; Sampling and Analyzing Method: Site Latitude, in decimal degrees Parameter or Variable: LONGITUDE (measured); Units: decimal degrees; Observation Category: in situ; Sampling Instrument: handheld GPS; Sampling and Analyzing Method: Sitee Longitude, in decimal degrees Parameter or Variable: Sampling Notes (measured); Units: text; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Notes about site information Parameter or Variable: Year (measured); Units: calendar year; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Calendar year sampled Parameter or Variable: SITEYR (measured); Units: text; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Survey site identification combining Site and Year Parameter or Variable: Date (measured); Units: calendar date; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Date of sample Parameter or Variable: Gear Type (measured); Units: text; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Description of sampling gear used Parameter or Variable: Fish Taxa (measured); Units: text; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Species name (common) of fish collected or observed. Parameter or Variable: Abundance (measured); Units: number of individuals; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: total abundance of a given fish taxa collected or observed during a site visit. Parameter or Variable: Relative Abundance (measured); Units: text; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Relative abundance of a given fish taxa collected or observed during a site visit, expressed as text- Rare (0-10), Common (11-100), or Abundant (101+). Parameter or Variable: Effort (seconds) (measured); Units: number, seconds; Observation Category: in situ; Sampling Instrument: stopwatch, hour meter; Sampling and Analyzing Method: Total seconds of electrofishing or trap/net deployment Parameter or Variable: Pass (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Electrofishing pass number completed during a site visit. Parameter or Variable: TL (measured); Units: millimeters; Observation Category: in situ; Sampling Instrument: meter stick, ruler; Sampling and Analyzing Method: Total Length of gamefish specimen, expressed in millimeters Parameter or Variable: GamefishNumber (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Autonumber (used for indexing), sequential number of each gamefish of a particular taxa collected during a site visit. Parameter or Variable: SITEYR-GRID (measured); Units: n/a; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Site-year-grid identification, combining SITEYR and sample GRID. Parameter or Variable: GRID (measured); Units: n/a; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Location within the site, based on grids lettered A through J. The grids are formed by dividing the 75m site in half down the center of the channel then splitting it into five 15m transects. Parameter or Variable: Area (measured); Units: square meters; Observation Category: in situ; Sampling Instrument: meter tape, laser range finder; Sampling and Analyzing Method: Estimated area of the grid = 15m length multiplied by one half of the average of the two transects bounding the grid on the upstream and downstream ends. Parameter or Variable: %SI (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the grid, by area, that was covered in silt. Parameter or Variable: %SN (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the grid, by area, that was covered in sand. Parameter or Variable: %GR (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the grid, by area, that was covered in gravel. Parameter or Variable: %CB (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the grid, by area, that was covered in cobble. Parameter or Variable: %BO (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the grid, by area, that was covered in boulders. Parameter or Variable: %BE (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the grid, by area, that was covered in bedrock. Parameter or Variable: %LP (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the grid, by area, that was covered in leafpack. Parameter or Variable: Area SI (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of silt coverage within the grid = grid Area multiplied by %SI. Parameter or Variable: Area SN (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of sand coverage within the grid = grid Area multiplied by %SN. Parameter or Variable: Area GR (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of gravel coverage within the grid = grid Area multiplied by %GR. Parameter or Variable: Area CB (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of cobble coverage within the grid = grid Area multiplied by %CB. Parameter or Variable: Area BO (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of boulder coverage within the grid = grid Area multiplied by %BO. Parameter or Variable: Area BE (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of bedrock coverage within the grid = grid Area multiplied by %BE. Parameter or Variable: %PO (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the Grid, by area, that was Pool habitat. Parameter or Variable: %GL (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the Grid, by area, that was Glide habitat. Parameter or Variable: %RN (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the Grid, by area, that was Run habitat. Parameter or Variable: %RI (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the Grid, by area, that was Riffle habitat. Parameter or Variable: %RA (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the Grid, by area, that was Rapid habitat. Parameter or Variable: Area PO (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of Pool habitat within the Grid = Grid Area multiplied by %PO. Parameter or Variable: Area GL (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of Glide habitat within the Grid = Grid Area multiplied by %GL. Parameter or Variable: Area RN (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of Run habitat within the Grid = Grid Area multiplied by %RN. Parameter or Variable: Area RI (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of Riffle habitat within the Grid = Grid Area multiplied by %RI. Parameter or Variable: Area RA (calculated); Units: square meters; Observation Category: in situ; Sampling Instrument: desktop computer, meter tape, laser rangefinder; Sampling and Analyzing Method: Area of Rapid habitat within the Grid = Grid Area multiplied by %RA. Parameter or Variable: DomSub (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Dominant substrate within the grid. Expressed numerically as a function of general grain size in mm for the typical substrate particle. 0.062mm = silt, 2 mm = sand, 64 mm = gravel, 256 mm = cobble, 4096 mm = boulder, 5000 mm = bedrock. Parameter or Variable: DomHab (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Dominant habitat within the grid, expressed numerically such that 1 = pool, 2 = glide, 3 = riffle, 4 = run Parameter or Variable: Depth (measured); Units: centimeters; Observation Category: in situ; Sampling Instrument: meter stick; Sampling and Analyzing Method: Depth in cm, measured immediately in front of where the Hess sampler will be/was placed for sampling. Parameter or Variable: Velocity (measured); Units: meters per second; Observation Category: in situ; Sampling Instrument: handheld electronic flow meter; Sampling and Analyzing Method: Velocity in m/s, measured immediately in front of where the Hess sampler will be/was placed for sampling. Parameter or Variable: Embeddedness (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimate of available interstitial spaces for macroinvertebrates at the time of sampling. Light = interstitial spaces present, little to no clogging by fines; Medium = spaces present, some clogging by fines; Heavy = Zero interstitial spaces Parameter or Variable: Submerged (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Y=sampled deep enough to submerge Hess sampler; top of sampler was enclosed in a net bag to keep from losing sample material into the water column during sampling. N=sample was taken in shallow water, with the sampler breaking the water surface. Parameter or Variable: Transect (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Transect identification number, numbered 1 to 6, every 15 meters along the 75 meter site length from downstream to upstream. Transect 1 is at 0m at the downstream end of the site and Transect 6 is at 75m at the upstream end of the site. Parameter or Variable: Width_m (measured); Units: meters; Observation Category: in situ; Sampling Instrument: meter tape, laser range finder; Sampling and Analyzing Method: Wetted width of transect, expressed in meters. Measured at each of 6 transects throughout the site. Parameter or Variable: Length (mm) (measured); Units: millimeter; Observation Category: in situ; Sampling Instrument: ruler, fish board; Sampling and Analyzing Method: Total Length of eel, expressed in millimeters Parameter or Variable: Mass (g) (measured); Units: grams; Observation Category: in situ; Sampling Instrument: digital scale; Sampling and Analyzing Method: Weight of eel, expressed in grams Parameter or Variable: Estimated Length (mm) (calculated); Units: millimeter; Observation Category: model output; Sampling Instrument: n/a; Sampling and Analyzing Method: Length (L) derived from weight-length relationship, using the actual weight (W) of each eel recorded in the field, where W=0.0000009786 ∙ L^3.104 Parameter or Variable: EelNumber (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Autonumber (used for indexing). Sequential number of each measured from a site during a sampling event. Parameter or Variable: DATE_SPR (measured); Units: Date/Time; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: Date sampled during spring monitoring. Parameter or Variable: strata_r (measured); Units: n/a; Observation Category: satellite; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Benthic IBI stratum (Coastal, Epiedmont, Highland) based on sample location within Maryland. Parameter or Variable: totind (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual organisms identified from the benthic sample. Parameter or Variable: ntaxa (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of taxa (richness) within the benthic sample Parameter or Variable: nept (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of EPT taxa (Ephemeropter, Plecoptera, Trichoptera) within the sample Parameter or Variable: nephem (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of Ephemeroptera taxa within the sample Parameter or Variable: totephem (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of Ephemeroptera individuals within the sample Parameter or Variable: nscrape (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of scraper taxa within the sample Parameter or Variable: totclimb (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual climbers within the sample Parameter or Variable: totchiron (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual Chironimidae within the sample. Parameter or Variable: totcling (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual clingers within the sample. Parameter or Variable: tottany (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual Tanytarsini Parameter or Variable: totscrape (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual scrapers Parameter or Variable: totswim (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual swimmers Parameter or Variable: totdipt (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual Diptera Parameter or Variable: totintol_urb (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individual intolerant urban Parameter or Variable: pephem (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of sample that is Ephemeroptera Parameter or Variable: pclimb (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of sample that is climbers Parameter or Variable: pchiron (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of the sample that is Chironomidae Parameter or Variable: pcling (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of clingers Parameter or Variable: ptany (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of sample that is Tanytarsini Parameter or Variable: pscrape (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of the sample that is scrapers Parameter or Variable: pswim (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of the sample that is swimmers Parameter or Variable: pdipt (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of sample that is Diptera Parameter or Variable: pintol_urb (calculated); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of sample that are intolerant urban taxa Parameter or Variable: ndipt (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of Diptera Parameter or Variable: nintol (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of intolerant taxa Parameter or Variable: sc_ntaxa (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for number of taxa; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_nept (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for number of EPT taxa; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_nephem (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for number of Ephemeroptera taxa; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_pintol_urb (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage intolerant urban; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_pephem (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage Ephemeroptera; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_nscrape (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for number of scraper taxa; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_pclimb (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage climbers; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_pchiron (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage Chironomidae; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_pcling (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage clingers; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_ptany (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage Tanytarsini; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_pscrape (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage scrapers; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_pswim (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage swimmers; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: sc_pdipt (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage Diptera; Data Quality Method: score = 1, 3, or 5. Parameter or Variable: bibi_05 (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Final calculated benthic index of biotic integrity (2005); Data Quality Method: score = 1-5. Roth, N., J. Volstad, L. Erb, E. Weber, P. Kazyak, S. Stranko, and D. Boward. 2005. Maryland Biological Stream Survey 2000–2004. Volume 6: Laboratory, Field and Analytical Methods. Maryland Department of Natural Resources, Monitoring and Non-Tidal Assessment Division, Annapolis, Maryland. Parameter or Variable: Char_Table (calculated); Units: n/a; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: The Characteristics Table used to assign taxa traits for the index; Data Quality Method: Southerland, M. T., G. M. Rogers, M. J. Kline, R. P. Morgan II, D. M. Boward, P. F. Kazyak, R. M. Klauda, and S. A. Stranko. 2005. New Biological Indicators to Better Assess the Condition of Maryland Streams. Versar, Inc., Columbia, Maryland. (Prepared for the Maryland Department of Natural Resources, Annapolis, Maryland). Parameter or Variable: RIFFLE (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of square-foot samples in riffle habitat; Data Quality Method: 0-20 square feet Parameter or Variable: ROOTWAD (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of square-foot samples in rootwad habitat; Data Quality Method: 0-20 square feet Parameter or Variable: LEAFPACK (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of square-foot samples in leafpack habitat; Data Quality Method: 0-20 square feet Parameter or Variable: MACROPHYTE (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of square-foot samples in macrophyte habitat; Data Quality Method: 0-20 square feet Parameter or Variable: UNDERCUT (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of square-foot samples in bank undercut habitat; Data Quality Method: 0-20 square feet Parameter or Variable: OTHER (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of square-foot samples in other habitat types; Data Quality Method: 0-20 square feet Parameter or Variable: OTHER_TYPE (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Type of other habitat sampled Parameter or Variable: FIBISTRATA (measured); Units: n/a; Observation Category: satellite; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Fish IBI strata (Coastal, Epiedmont, Highland, Cold) where each site is located. Parameter or Variable: ACREAGE (measured); Units: acres; Observation Category: satellite; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Catchment area (acres) for each survey location. Calculated using GIS. Parameter or Variable: LOGACRES (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Log (base 10) of catchment area Parameter or Variable: LEN_SAMP (measured); Units: meters; Observation Category: in situ; Sampling Instrument: meter tape; Sampling and Analyzing Method: Length of reach sampled (m) at each site Parameter or Variable: AVGWID (calculated); Units: square meters; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Average wetted width (m) calculated from measured transect widths. Parameter or Variable: STRMAREA (calculated); Units: square meters; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Stream area in square meters (calculated by multiplying LEN_SAMP by AVGWID) Parameter or Variable: TOTCNT (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of fish collected Parameter or Variable: ABUNSQM (calculated); Units: fish per square meter; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Fish abundance per square meter, calculated by dividing TOTCNT by STRMAREA Parameter or Variable: ABDOM (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Abundance of dominant taxa Parameter or Variable: PABDOM (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of TOTCNT comprised by dominant taxa Parameter or Variable: TOTBIOM (measured); Units: grams; Observation Category: in situ; Sampling Instrument: digital scale; Sampling and Analyzing Method: Total biomass (g) of fish collected Parameter or Variable: BIOM_MSQ (calculated); Units: grams per square meter; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Biomass per square meter = TOTBIOM divided by STRMAREA. Parameter or Variable: NUMBENTSP (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of benthic species collected Parameter or Variable: NUMBROOK (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of brook trout Parameter or Variable: PBROOK (calculated); Units: percent; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of fish that are brook trout Parameter or Variable: NUMGEOMIV (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of generalist, omnivorous, and insectivorous species Parameter or Variable: PGEOMIV (calculated); Units: percent; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage fish that are generalist, omnivorous, and insectivorous species Parameter or Variable: NUMIS (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of insectivores Parameter or Variable: P_IS (calculated); Units: percent; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage insectivores Parameter or Variable: NUMLITH (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number lithophilic spawners Parameter or Variable: P_LITH (calculated); Units: percent; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage lithophilic spawners Parameter or Variable: NUMROUND (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of round-bodied suckers Parameter or Variable: PROUND (calculated); Units: percent; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of round-bodied suckers Parameter or Variable: NUMSCULP (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of sculpins Parameter or Variable: PSCULP (calculated); Units: percent; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of sculpins Parameter or Variable: NUMTOL (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of tolerant individuals Parameter or Variable: PTOL (calculated); Units: percent; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Percentage of tolerant individuals Parameter or Variable: NUMBENTSPA (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Number of benthic species adjusted for catchment area Parameter or Variable: SC_ABUNSQM (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for abundance per square meter; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_NUMBENTSPA (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for number of benthic species adjusted for catchment area; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_PTOL (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage tolerant individuals; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_PGEOMIV (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage number of generalist, omnivorous, and insectivorous species; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_PROUND (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage of round-bodied suckers; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_PABDOM (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage abundance of dominant taxa; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_BIOM_MSQ (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for biomass per square meter; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_P_LITH (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage lithophilic spawners; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_P_IS (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage number of insectivores; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_PBROOK (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage brook trout; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: SC_PSCULP (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Score for percentage sculpins; Data Quality Method: Possible scores may be 1, 2, 3, 4, or 5. Parameter or Variable: FIBI_05 (calculated); Units: n/a; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Final calculated fish index of biotic integrity (2005).; Data Quality Method: Possible scores may be 1-5. Southerland, M. T., G. M. Rogers, M. J. Kline, R. P. Morgan II, D. M. Boward, P. F. Kazyak, R. D. Klauda, and S. A. Stranko. 2005. New Biological Indicators to Better Assess the Condition of Maryland Streams. Versar, Inc., Columbia, Maryland. Parameter or Variable: INSTRHAB (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Instream habitat score; Data Quality Method: Scored on a scale of 0-20, where 0-5 is "poor", 6-10 is "marginal", 11-15 is "sub-optimal", and 16-20 is "optimal". Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: EPI_SUB (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Epifaunal substrate score; Data Quality Method: Scored on a scale of 0-20, where 0-5 is "poor", 6-10 is "marginal", 11-15 is "sub-optimal", and 16-20 is "optimal". Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: VEL_DPTH (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Velocity/depth diversity; Data Quality Method: Scored on a scale of 0-20, where 0-5 is "poor", 6-10 is "marginal", 11-15 is "sub-optimal", and 16-20 is "optimal". Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: POOLQUAL (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Pool/glide/eddy quality; Data Quality Method: Scored on a scale of 0-20, where 0-5 is "poor", 6-10 is "marginal", 11-15 is "sub-optimal", and 16-20 is "optimal". Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: EXPOOL (measured); Units: meters; Observation Category: in situ; Sampling Instrument: meter tape; Sampling and Analyzing Method: Extent of pool or glide (m); Data Quality Method: EXPOOL + EXRIFRUN = 75m Parameter or Variable: RIFFQUAL (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Riffle/run quality; Data Quality Method: Scored on a scale of 0-20, where 0-5 is "poor", 6-10 is "marginal", 11-15 is "sub-optimal", and 16-20 is "optimal". Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: EXRIFRUN (measured); Units: meters; Observation Category: in situ; Sampling Instrument: meter tape; Sampling and Analyzing Method: Extent of riffle or run (m); Data Quality Method: EXPOOL + EXRIFRUN = 75m Parameter or Variable: EMBEDDED (measured); Units: percent; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Visual estimation of embeddedness (%), i.e., the amount of particle embedded in fine sediment or flocculent material.; Data Quality Method: Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: SHADING (measured); Units: percent; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Estimated percent of the stream channel that is shaded by overhead cover throughout the day.; Data Quality Method: Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: WOOD_DEB (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of woody debris.; Data Quality Method: WOOD_DEB = INSTREAMWOOD + DEWATERWOOD Parameter or Variable: NUMROOT (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of rootwads; Data Quality Method: NUMROOT = INSTREAMROOT + DEWATERROOT Parameter or Variable: INSTREAMWOOD (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of instream woody debris; Data Quality Method: Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: DEWATERWOOD (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of dewatered woody debris; Data Quality Method: Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: INSTREAMROOT (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of instream rootwads; Data Quality Method: Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: DEWATERROOT (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of dewatered rootwads; Data Quality Method: Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: MAXDEPTH (measured); Units: centimeter; Observation Category: in situ; Sampling Instrument: meter stick/ruler; Sampling and Analyzing Method: Maximum depth in sample reach (cm) Parameter or Variable: AVGWID (calculated); Units: meters; Observation Category: in situ; Sampling Instrument: meter tape, desktop computer; Sampling and Analyzing Method: Average wetted width (m) of the sample reach, calculated from transect widths measured at 0m, 25m, 50m, and 75m. Parameter or Variable: AVGTHAL (calculated); Units: centimeter; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Average thalweg depth (cm) of the sample reach, calculated from thalweg depths measured at 0m, 25m, 50m, and 75m transects. Parameter or Variable: AVG_VEL (calculated); Units: meters per second; Observation Category: model output; Sampling Instrument: desktop computer; Sampling and Analyzing Method: Average velocity (m/s) of the sample reach, calculated from velocities measured at 2/3 thalweg depth recorded at 0m, 25m, 50m, and 75m transects. Parameter or Variable: BAR_FORM (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Severity of bar formation (0-3) within the site.; Data Quality Method: 0 = no bar formation, 1 = minor bar formation, 2 = moderate bar formation, 3 = severe bar formation. Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: COB_BAR (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Cobble bar substrate present (Y/N); Data Quality Method: Yes (Y) or No (N). Parameter or Variable: GRAV_BAR (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Gravel bar substrate present (Y/N); Data Quality Method: Yes (Y) or No (N). Parameter or Variable: SAND_BAR (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Sand bar substrate present (Y/N); Data Quality Method: Yes (Y) or No (N). Parameter or Variable: SC_BAR (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Silt/clay bar substrate present (Y/N); Data Quality Method: Yes (Y) or No (N). Parameter or Variable: BRAIDED (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of stream braiding; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: RIFFLE (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of stream riffles; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: RUNGLIDE (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of runs and glides; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: DEEPOOL (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of deep pools; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: SHALPOOL (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of shallow pools; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: LRGBOULD (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of large boulders; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: SMLBOULD (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of small boulders; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: COBBLE (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of cobble; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: BEDROCK (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of bedrock; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: GRAVEL (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of gravel; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: SAND (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of sand; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: SILTCLAY (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of silt/clay; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: UNDERCUT (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of undercut banks; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: OH_COVER (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Presence of overhead cover; Data Quality Method: Yes (Y) or No (N). Parameter or Variable: ErosionSeverityL (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Erosion severity along left bank; Data Quality Method: 0 = no erosion, 1 = minor erosion, 2 = moderate erosion, 3 = severe erosion. Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: ErosionSeverityR (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: n/a; Sampling and Analyzing Method: Erosion severity along right bank; Data Quality Method: 0 = no erosion, 1 = minor erosion, 2 = moderate erosion, 3 = severe erosion. Harbold, W., J. Kilian, T. Ivasauskas, K. Hodgson, J. Sivalia, M. Genovese, S. Stranko, N. Hofmann, M. Ashton, G. Mathews, and S. Briggs. 2024. Maryland Biological Stream Survey: Field Sampling Manual. Maryland Department of Natural Resources. Publication # DNR 12-010524-1 https://dnr.maryland.gov/streams/Publications/MBSSFieldManual.pdf Parameter or Variable: ErodedExtentL (measured); Units: meters; Observation Category: in situ; Sampling Instrument: meter tape; Sampling and Analyzing Method: Extent of erosion along left bank (m) Parameter or Variable: ErodedExtentR (measured); Units: meters; Observation Category: in situ; Sampling Instrument: meter tape; Sampling and Analyzing Method: Extent of erosion along right bank (m) Parameter or Variable: ErodedHeightL (measured); Units: meters; Observation Category: in situ; Sampling Instrument: meter stick/ruler; Sampling and Analyzing Method: Estimated average height of erosion on left bank (m) Parameter or Variable: ErodedHeightR (measured); Units: meters; Observation Category: in situ; Sampling Instrument: meter stick/ruler; Sampling and Analyzing Method: Estimated average height of erosion on right bank (m) Parameter or Variable: TAXON (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Taxonomic name (scientific) Parameter or Variable: N_TAXA (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Total number of individuals identified for that taxon Parameter or Variable: EXCLUDE (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Exclude from BIBI richness calculations (Y/N); Data Quality Method: Southerland, M. T., G. M. Bressler, and R. J. Kline. 2005. New biological indicators to better assess the condition of Maryland streams. Prepared for Maryland Department of Natural Resources, Monitoring and Non-Tidal Assessment Division by Versar, Inc., Columbia, MD. Parameter or Variable: GRIDS (measured); Units: n/a; Observation Category: laboratory analysis; Sampling Instrument: n/a; Sampling and Analyzing Method: Number of grids picked in order to obtain 100 organisms; Data Quality Method: Southerland, M. T., G. M. Bressler, and R. J. Kline. 2005. New biological indicators to better assess the condition of Maryland streams. Prepared for Maryland Department of Natural Resources, Monitoring and Non-Tidal Assessment Division by Versar, Inc., Columbia, MD. asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian clock clock An instrument for measuring time. flow meter flow meter flow meter GPS GPS Global Positioning System receiver satellite-based instrument used for geo-location, positioning and navigation scale scale An instrument for measuring mass or weight.