Short Citation:
Office for Coastal Management, 2021: Sediment Grab Data from September 2001 in Wells, Maine (wellssedgrabs), https://www.fisheries.noaa.gov/inport/item/47907.

Item Identification

Title: Sediment Grab Data from September 2001 in Wells, Maine (wellssedgrabs)
Short Name: me_wells01_sedgrabs-meta
Status: Completed
Publication Date: 2005-05-31
Abstract:

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 sediment grain size and organic content information gathered from grab sampling.

Original contact information:

Contact Name: Dr. Michele Dionne

Contact Org: Wells National Estuarine Research Reserve

Phone: (207) 646-1555

Purpose:

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. Grain size and percent organic content were measured from the sediment grab samples.

Notes:

10064

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Coastal
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Estuary
ISO 19115 Topic Category biota
None Environmental Monitoring
None geographic information system
None GIS
None grain size
None sediment
None sediment grab

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America > Maine
None Maine
None Webhannet River
None Wells
None York
None York River

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Map (digital)
Distribution Liability:

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.

Data Set Credit: NOAA Office for Coastal Management

Support Roles

Data Steward

CC ID: 612139
Date Effective From: 2005-05-31
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 612141
Date Effective From: 2005-05-31
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 612142
Date Effective From: 2005-05-31
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 612140
Date Effective From: 2005-05-31
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 612145
W° Bound: -70.682172
E° Bound: -70.55111
N° Bound: 43.329201
S° Bound: 43.125142

Extent Group 1 / Time Frame 1

CC ID: 612144
Time Frame Type: Range
Start: 2001-09-11
End: 2001-09-18

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Vector Representation 1

CC ID: 612134
Point Object Present?: Yes
Point Object Count: 90

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

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.

Distribution Information

Distribution 1

CC ID: 750508
Download URL: ftp://ftp.coast.noaa.gov/pub/benthic/Grab_Sample_Data/ME_Wells_sedgrabs.zip
Distributor:
File Name: Bulk Download
Description:

FTP download of data files.

URLs

URL 1

CC ID: 750510
URL: https://coast.noaa.gov/
Name: NOAA's Office for Coastal Management (OCM) website
URL Type:
Online Resource
Description:

Information on the NOAA Office for Coastal Management (OCM)

Activity Log

Activity Log 1

CC ID: 612163
Activity Date/Time: 2017-03-30
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 612162
Activity Date/Time: 2017-11-14
Description:

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.

Activity Log 3

CC ID: 717899
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 750509
Activity Date/Time: 2018-04-11
Description:

Partial upload to move data access FTP links to Distribution Info and remove broken URLs.

Technical Environment

Description:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800

Data Quality

Accuracy:

Values were checked against hard copy data sheets provided by the analysis laboratory.

Horizontal Positional Accuracy:

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.

Vertical Positional Accuracy:

Not relevant to the data set.

Completeness Report:

All grab data were not included in this data layer. Percent values of sand, silt, clay, gravel, sand and gravel combination, silt and clay combination, and total organic content, as well as a Folk description of grain size and median grain size (in phi units) are included. Other calculated grain size metrics (such as mean grain size and percent skewness) were not included, but these data can be found in the project database at the Wells Reserve.

Conceptual Consistency:

All data are believed to be logically consistent.

Lineage

Sources

Wells Reserve Sediment Survey, September 2001

CC ID: 612130
Contact Name: Virginia Institute of Marine ScienceWells National Estuarine Research Reserve
Extent Type: Range
Extent Start Date/Time: 2001-09-11
Extent End Date/Time: 2001-09-18
Source Contribution:

Textural analysis and organic content for sediment grabs collected in Webhannet and York Rivers, Maine. | Source Geospatial Form: None | Type of Source Media: database table

Process Steps

Process Step 1

CC ID: 612131
Description:

Field Methods: Grabs for sediments and benthos were collected from 11 to 18 September at a total of 93 stations. A Young grab, 0.044 m2 surface area, was deployed twice to collect a sample for substrate and a sample for benthic community data. The Young grab is the same sampler used by EPA in its Environmental Monitoring and Assessment Program (EMAP) and Mid-Atlantic Integrated Assessment (MAIA) programs. The Young grab is similar to a van Veen grab that has been placed in a frame to hold it level with the sediment surface while a sample is collected. Grabs without frames tend to twist and collect uneven samples. Because of its frame, the Young grab functions well in both soft and hard sediment. Laboratory Methods: From the sediment grab, two sediment subsamples of about 50 g were taken, one for total organic carbon (TOC) analysis and one for sediment grain-size analysis. Both samples were placed on ice in the field and frozen in the laboratory until they were analyzed. TOC was determined by weight lost on ignition (Wells NERR, ME). Ten grams of wet sediment were dried at 60 degrees Celsius for 2 to 3 days and combusted at 500 degrees Celsius for 2 hours. Sediment grain-size distributions and sand fraction distributions were determined (by Virginia Institute of Marine Science (VIMS) Analytical Services Laboratory, Gloucester Pt., VA). Grain-size distributions were determined using wet sieve techniques for fines and sand size fractions were measured using a Rapid Sediment Analyzer. Reference: Folk, R.L. 1974. Petrology of Sedimentary Rocks. Austin, Texas.

Process Date/Time: 2001-09-01 00:00:00

Process Step 2

CC ID: 612132
Description:

Data from field samples was entered into an Access database for the Wells, Maine benthic sediment 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 sediment distribution in the two rivers.

Process Date/Time: 2004-05-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity (ENT) sedgrabs.dbf

Catalog Details

Catalog Item ID: 47907
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 12:57+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-07-02 15:17+0000
Metadata Record Published: 2018-04-11
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-04-12