47908 me_wells01_spi-meta Data Set Published / External 37225 Benthic Project Completed 2005-05-31 In fall 2001, researchers from the Wells National Estuarine Research Reserve, Virginia Institute of Marine Science, and the NOAA Office for Coastal Management conducted a project to map benthic habitats in the York and Webhannet rivers in southern Maine. The team completed two weeks of fieldwork in September 2001, collecting sediment profile images at 382 stations and sediment grab samples at 93 stations. This data set represents the information gathered from sediment profile imagery sampling. Original contact information: Contact Name: Dr. Michele Dionne Contact Org: Wells National Estuarine Research Reserve Phone: (207) 646-1555 The Wells Reserve is using the 2001 grab and SPI information to characterize benthic habitats within the York and Webhannet rivers, and to examine relationships between animal communities and sediment characteristics as well as the potential effects of dredging activities. Sediment profile images (SPI) of the sediment-water interface were collected using a sediment profile camera at pre-determined locations in both rivers. Physical, chemical, geological, and biological conditions observed in the photos were used to create a database for all stations, and habitat classes were defined by sediment type and/or faunal community for each location. The database was then used in a Geographic Information System (GIS) to characterize fine scale benthic habitat distributions in the rivers. 10065 Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY Theme ISO 19115 Topic Category biota Theme ISO 19115 Topic Category environment Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE Theme Environmental Monitoring Theme GIS Theme OCM Benthic Habitat Mapping Theme SPI Theme benthic data Theme geographic information system Theme sediment profile image Spatial Maine Spatial Webhannet River Spatial Wells Spatial York Spatial York River Office for Coastal Management Charleston SC Data Set None Planned Map (digital) Values of 99.0 for PEN_MIN, PEN_MAX, PEN_AVE, SFC_RELIEF, RPD_MAX, RPD_AVE, INFAUNA, BURROWS, OXIC_VOID, ANOX_VOID, GAS_VOID, and BHQ fields represents unknown values. Unknown While every effort has been made to ensure that these data are accurate and reliable within limits of the state of the art, NOAA will not assume any liability for damages caused by any inaccuracies in these data, or failure in their use. NOAA Office for Coastal Management 49320 wellsspi.dbf Published / External Completed Database file | Description Source: Unknown Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script. 1 FID Unknown No No Active Internal feature number. | Description Source: ESRI Sequential unique whole numbers that are automatically generated. 2 Shape Unknown No No Active Feature geometry. | Description Source: ESRI Coordinates defining the features. 3 STATION NUMBER No No Active Unique identifier for sample sites. | Description Source: NOAA Office for Coastal Management Unknown - Unknown 4 RIVER VARCHAR No No Active Designates Webhannet and York sample sites. | Description Source: Unknown Webhannet: Unknown | York: Unknown | 5 LATITUDE NUMBER No No Active Latitude in decimal degrees. | Description Source: Unknown 43.12517 - 43.32928 6 LONGITUDE NUMBER No No Active Longitude in decimal degrees. | Description Source: Unknown -70.65184 - -70.56106 7 REP NUMBER No No Active Replicate image at station | Description Source: Unknown 1 - 4 8 PEN_MIN NUMBER No No Active Minimum prism penetration depth in cm | Description Source: Unknown 0.0 - 17.7 9 PEN_MAX NUMBER No No Active Maximum prism penetration depth in cm | Description Source: Unknown 0.5 - 19.2 10 PEN_AVE NUMBER No No Active Average prism penetration depth in cm | Description Source: Unknown 0.2 - 18.4 11 SFC_RELIEF NUMBER No No Active Change in sediment depth (in cm) across the 15 cm width of the prism face plate | Description Source: Unknown 0.3 - 5.4 12 RPD_MAX NUMBER No No Active Maximum apparent redox potential discontinuity (RPD) depth in cm | Description Source: Unknown 0.6 - 8.2 13 RPD_AVE NUMBER No No Active Average apparent redox potential discontinuity (RPD) depth in cm | Description Source: Unknown 0.2 - 18.4 14 GRAIN_SIZE Unknown No No Active Abbreviation of modal sediment grain size estimate | Description Source: Unknown Grain size code 15 SED_DESC Unknown No No Active Description of grain-size code in previous column | Description Source: Unknown Grain size description 16 DETRITUS VARCHAR No No Active Presence of detritus or plant material | Description Source: Unknown "x": Presence of detritus or plant material | fecal pellets: Presence of fecal pellets | leaf, detritus: Presence of leaf detritus | plants: Presence of plants | tube parts: Presence of infaunal tube parts | less than blank greater than : no evidence of detritus | 17 ORGANISMS Unknown No No Active Epifaunal organisms on sediment surface | Description Source: Unknown Description of organisms present, if any 18 SHELL VARCHAR No No Active Presence of shell fragments | Description Source: Unknown "x": Presence of shell fragments | bed: Presence of shell bed | 19 ALGAE VARCHAR No No Active Presence of diatom mats or macro algae | Description Source: Unknown Unknown: Description of type of algae present | less than blank greater than : no evidence of algae | 20 BEDFORMS VARCHAR No No Active Presence of small sand ripples (bedforms) | Description Source: Unknown "x": Presence of small sand ripples (bedforms) | less than blank greater than : no evidence of bedforms | 21 SFC_FEATUR VARCHAR No No Active Sediment surface with biologically-derived (biogenic) structures or physical structures | Description Source: Unknown biogenic: Unknown | physical: Unknown | physical, biogenic: Unknown | physical, mussel bed: Unknown | physical, shell bed: Unknown | 22 TUBES VARCHAR No No Active Number of worm tubes in image | Description Source: Unknown NONE: No tubes present | FEW: 1-5 tubes present | SOME: 6-24 tubes present | MANY: Greater than 24 tubes present | FEW to SOME: 1-24 tubes present (Information from multiple images was combined for this value) | NONE to FEW: 0-5 tubes present (Information from multiple images was combined for this value) | NONE to SOME: 0-24 tubes present (Information from multiple images was combined for this value) | NONE to MANY: 0 to greater than 24 tubes present (Information from multiple images was combined for this value) | SOME to MANY: 6 to greater than 24 tubes present (Information from multiple images was combined for this value) | IND: Indeterminate | 23 INFAUNA NUMBER No No Active Number of infaunal worms | Description Source: Unknown 0 - 4 24 BURROWS NUMBER No No Active Number of infaunal burrows | Description Source: Unknown 0 - 10 25 OXIC_VOID NUMBER No No Active Number of water-filled inclusions in the sediment that appear oxygenated (oxic) | Description Source: Unknown 0 - 1 26 ANOX_VOID NUMBER No No Active Number of water-filled inclusions in the sediment that appear anaerobic (anoxic) | Description Source: Unknown 0 - 2 27 GAS_VOID NUMBER No No Active Number of methane gas-filled inclusions in the sediment | Description Source: Unknown 0 - 20 28 BHQ NUMBER No No Active Benthic Habitat Quality Index | Description Source: Nilsson and Rosenberg 1997 modified by R.J. Diaz 1.0 - 8.0 29 DATE_ Unknown No No Active Date image was taken | Description Source: Unknown Date that imagery was collected Data Steward 2005-05-31 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2005-05-31 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2005-05-31 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2005-05-31 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -70.682411 -70.551545 43.329339 43.124806 Range 2001-09-04 2001-09-10 Yes Yes 349 Unclassified Alternately, the data can be obtained by contacting the Wells National Estuarine Research ReserveAddress: 342 Laudholm Farm RoadWells, Maine 04090 Phone: (207) 646-1555; None These data should be used for resource mapping and comparison purposes only. While every effort has been made to ensure that these data are accurate and reliable within limits of the state of the art, NOAA and the Wells Reserve will not assume any liability for damages caused by any inaccuracies in these data, or failure in their use. For use of these data in published analyses within the first two years of development, please contact Dr. Michele Dionne at the Wells Reserve for use permission. https://ocmgeodatastor1.blob.core.windows.net/benthic-data/Benthic/Sediment_Profile_Imaging_Data/ME_Wells_spi.zip https://coast.noaa.gov/ NOAA's Office for Coastal Management (OCM) website Online Resource Information on the NOAA Office for Coastal Management (OCM) 2017-03-30 Date that the source FGDC record was last modified. 2017-11-14 Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. 2018-02-08 Partial upload of Positional Accuracy fields only. 2018-04-11 Partial upload to move data access FTP links to Distribution Info and remove broken URLs. Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800 The attribute accuracy was verified by checking the compiled SPI database against the actual photos for each station. Since two photos were taken at each station, attributes from both images were noted in the database, and one image was digitized and analyzed using image analysis software. The results of this automated analysis were also used to check the accuracy of the dataset. When large disagreement occurred between images from a single station, all attributes were recorded and the image with the largest visible area was digitized. Results of grab sampling were also used, when available, to check the accuracy of the SPI data set. Additionally, a subset of the images were evaluated by two other professional benthic ecologists with experience working with SPI. Differences between the original analysis and the QA/QC analysis were addressed in the final data set. Stations were located in the field using a differential Global Positioning System (GPS), and station coordinates, date and time of day were recorded upon arrival at each station. Not relevant to the data set. All SPI data were not included in this data layer. All stations are represented, however, some parameters, which were harder or more subjective to interpret, were not included in the data set. These data can be found in the project database at the Wells Reserve. All data are believed to be logically consistent. Wells Reserve SPI Survey, September 2001 Virginia Institute of Marine Science Range 2001-09-04 2001-09-10 Unknown | Source Geospatial Form: None | Type of Source Media: database table 1 Field Methods: SPI images were collected from 4 to 10 September at a total of 382 stations. A Hulcher model sediment profile camera was deployed with a modified frame that was lightened for use from a small vessel. Fujichrome 100 ASA professional color slide film was used. Tests were done frequently onboard in order to ensure camera function and mark stations. Laboratory Methods: All sediment images were analyzed visually by projecting the images and recording all features seen into a preformatted standardized spreadsheet file. Images were then digitized using a Nikon LS2000 scanner and analyzed using the Adobe PhotoShop and NTIS Image programs. Steps in the computer analysis of each image were standardized and followed the basic procedures in Viles and Diaz (1991). Data from each image were sequentially saved to a spread sheet file for later analysis. Details of how these data were obtained can be found in Diaz and Schaffner (1988) and Rhoads and Germano (1986). References: 1) Viles, C. and R.J. Diaz. 1991. Bencore, an image analysis system for measuring sediment profile camera slides. School of Marine Science, Virginia Institute of Marine Science, College of William and Mary, Gloucester Pt. VA. 13 pp. 2) Diaz, R.J. and L.C. Schaffner. 1988. Comparison of sediment landscapes in the Chesapeake Bay as seen by surface and profile imaging. p. 222 240. In: M. P. Lynch and E. C. Krome, eds. Understanding the estuary; Advances in Chesapeake Bay research. Chesapeake Res. Consort. Pub. 129, CBP/TRS 24/88. 3) Rhoads, D.C. and J.D. Germano. 1986. Interpreting long-term changes in benthic community structure: a new protocol. Hydrobiologia 142:291-308. 2001-09-01T00:00:00 2 Data from field samples was entered into an Access database for the Wells, Maine benthic SPI survey. A query was developed to review sediment data from all grab sampling stations. See Entity and Attribute section for more information on data collected. A shapefile was created using the field data in the Access database to show spatial trends in benthic community distribution in the two rivers. 2004-05-01T00:00:00 49320 Entity gov.noaa.nmfs.inport:47908 Anne Ball 2017-11-14T12:57:34 Jesse Brass 2026-06-19T19:10:18 2018-04-11 Office for Coastal Management OCM 1002 Public No No 2018-04-11 1 Year 2019-04-11