Delaware Bay, Delaware Benthic Grabs 2007

Office for Coastal Management
Data Set (DS) | ID: 47866 | Published / External
Created: 2017-11-14   |   Last Modified: 2023-05-30

Parent: Benthic
Project (PRJ) | ID: 37225

ID: 47866
Data Set (DS)

* Discovery
• First Pass
» Metadata Rubric

Item Identification

* » Title Delaware Bay, Delaware Benthic Grabs 2007
Short Name de_db07_benthos-meta
* Status Completed
Creation Date  
Revision Date  
• Publication Date 2012
* » Abstract

The Coastal Program of Delaware's Division of Soil and Water conservation (DNREC), the University of Delaware, Partnership for the Delaware Estuary, and the New Jersey Department of Environmental Protection have partnered and are carrying out a bottom and sub-bottom imaging project to identify and map the benthic habitat and sub-bottom sediments of Delaware Bay and River. This project was initiated to better understand the distribution of bottom sediment types, habitat biodiversity, and most importantly, human's impact on the bay bottom and its living resources. The project integrates the use of three types of acoustical systems: Roxann Seabed classification system, chirp sub-bottom profiling, and multi-beam bathymetric mapping. Verification of the acoustic data with bottom and sub-bottom sediments is performed through the collection of bra banc core samples and underwater video images.

Original contact information:

Contact Name: Bartholomew Wilson

Contact Org: DNREC Delaware Coastal Programs

Phone: 302-739-9283
* Purpose

This layer contains all the locations where sediment grab samples were retrieved that contained the tube building polychaete Sabellaria vulgaris.

The bottom sediment data and maps that was collected through the sediment sampling were collected and constructed to aid in the identification of essential fish Habitat (EFH), identify locations of potential borrow sites for beach replenishment, identify important locations for marine protection areas, and aid in the assessment of sediment dynamic of Delaware River and Bay.
Notes

10023
Other Citation Details
• Supplemental Information

The Delaware Bay benthic grabs were focused on identifying the presence of the tube-building annelid sabellaria vulgaris.
DOI (Digital Object Identifier)  
DOI Registration Authority  
DOI Issue Date  

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 environment
None Environment Monitoring
   
   
   

Temporal Keywords

Thesaurus Keyword
   
   
   

* Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DELAWARE
None Delaware
None Delaware Bay
None USA
   
   
   

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Physical Location

• » Organization Office for Coastal Management
• » City Charleston
• » State/Province SC
• Country  
• » Location Description

Data Set Information

* Data Set Scope Code Data Set
• Data Set Type  
• Maintenance Frequency None Planned
Maintenance Note
» Data Presentation Form  
• Entity Attribute Overview
Entity Attribute Detail Citation
Entity Attribute Detail URL  
Distribution Liability

NOAA manages much of the data to users of digital geographic data.NOAA is in no way condoning or endorsing the application of this data for any given purpose.It is the sole responsibility of the user to determine whether or not the data is suitable for the intended purpose.It is also the obligation of the user to apply the data in an appropriate and conscientious manner.NOAA provides no warranty,nor accepts any liability occurring from any incomplete,incorrect, or misleading data, or from any incorrect,incomplete, or misleading use of the data.Much of the data is based on and maintained with ARC/GIS software developed by the Environmental Systems Research Institute (ESRI).In addition, much of the information presented uses conventions and terms popularized by ARC/GIS and its user community. NOAA in no way represents the interests of ESRI,nor acts as agents for them.
Data Set Credit Bartholomew Wilson P.G., DNREC Delaware Coastal Program Bartholomew.Wilson@state.de.us John Madsen Ph.D., University of Delaware Geosciences Department jmadsen@udel.edu

Support Roles

» At least one Distributor Org, one Metadata Contact, one Point of Contact, and one Data Steward should be listed.
* » Support Role Data Steward
* » Date Effective From 2012
Date Effective To
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
Fax  
Mobile  
URL https://coast.noaa.gov
Business Hours  
Contact Instructions
* » Support Role Distributor
* » Date Effective From 2012
Date Effective To
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
Fax  
Mobile  
URL https://coast.noaa.gov
Business Hours  
Contact Instructions
* » Support Role Metadata Contact
* » Date Effective From 2012
Date Effective To
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
Fax  
Mobile  
URL https://coast.noaa.gov
Business Hours  
Contact Instructions
* » Support Role Point of Contact
* » Date Effective From 2012
Date Effective To
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
Fax  
Mobile  
URL https://coast.noaa.gov
Business Hours  
Contact Instructions
* » Support Role
* » Date Effective From
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* Contact Instructions
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* » Date Effective From
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* Contact Instructions
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* » Date Effective From
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* » Contact
* Contact Instructions

Extents

Currentness Reference Ground Condition

Extent Group 1

Extent Description

Extent Group 1 / Geographic Area 1

* » W° Bound -75.4567
* » E° Bound -75.247593
* » N° Bound 39.351757
* » S° Bound 38.890727
* » Description

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* » Time Frame Type Range
* » Start 2004
End 2007
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Description

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Access Information

* » Security Class Unclassified
* Security Classification System

None
Security Handling Description

No specific security handling procedures needed.
• Data Access Policy
» Data Access Procedure
• » Data Access Constraints

None
• Data Use Constraints

Public Information. This 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, the State of Delaware and the Delaware Coastal program will not assume any liability for damages caused by any inaccuracies in these data, or failure in their use.
Metadata Access Constraints
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Distribution Information

Start Date  
» Download URL ftp://ftp.coast.noaa.gov/pub/benthic/Grab_Sample_Data/DE_DelawareBay_benthos.zip
Distributor
File Name Bulk Download
Description

FTP download of data files.
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» Download URL
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URLs

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

Information on the NOAA Office for Coastal Management (OCM)
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Activity Log

Activity Time 2017-03-30
Activity Type  
Responsible Party  
Description

Date that the source FGDC record was last modified.
Activity Time 2017-11-14
Activity Type  
Responsible Party  
Description

Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.
Activity Time 2018-04-11
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Responsible Party  
Description

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

Description

Microsoft Windows Server 2008 R2 Version 6.1 (Build 7600) ; ESRI ArcGIS 10.0.0.2414

Data Quality

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Completeness Report

Only oyster reef and unconsolidated bottom areas were sampled.
Conceptual Consistency

Ground truth information was collected at the time of the original surveys. In some cases, several grabs were made in the same general area to confirm the presence of a specific habitat.
» Quality Control Procedures Employed

Data Management

» Have Resources for Management of these Data Been Identified?  
» Approximate Percentage of Budget for these Data Devoted to Data Management  
» Do these Data Comply with the Data Access Directive?  
» Is Access to the Data Limited Based on an Approved Waiver?  
» If Distributor (Data Hosting Service) is Needed, Please Indicate  
» Approximate Delay Between Data Collection and Dissemination  
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed  
 
» Actual or Planned Long-Term Data Archive Location  
» If World Data Center or Other, Specify  
» If To Be Determined, Unable to Archive, or No Archiving Intended, Explain  
 
» Approximate Delay Between Data Collection and Archiving  
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?  
 

Lineage

» Lineage Statement

Sources

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Process Steps

Process Step Number 1
» Description

In the entire survey area in the Delaware River and Bay, over 600 sediment grab samples were collected for the bottom sediment verification and calibration of the Roxann sediment box plot . Samples were collected using a Petit Ponar, which has a sample opening of 6 inches x 6 inches, with a total sampling area of 36 in2. The petite ponar is a spring loaded sampler which pivots on an axis and when it encounters the bottom the retrieval rope is pulled and the ponar swings shut. The ponar will retrieve 2 to 6 inches, in depth, of sediments (depending on sediment type, harder and coarse sediments will constrict the ponar's penetration into the bottom). The retrieved sediment samples are then placed in a sampling bin and qualitatively described, noting the dominant sediment types, color, and sediment grain properties (sorting, grain maturity, and grain shape). Interesting features such as organic content (depending on sediment color), shell content and type, and anthropogenic debris are also recorded. Any organisms present are documented and these grab samples are then analyzed for their percentage abundances of sand, silt, and clay to determine sediment type. The sediment types are then correlated with their associated Roxann roughness and hardness clusters. Thus, the Roxann clusters can be used to develop a classification scheme for the sea floor.The box plot scheme used to classify the Roxann data for the bay an river areas are the current Delaware Bay benthic mapping project box plot which was constructed and verified by 540 grab samples collected during the 2004 thru 2008 field seasons. Sediment grab samples are collected from each ~ 5 sq. nautical miles (nm) field area (after the surveying has been completed) to verify any localized or regional differences that might cause variations in the clustering of the sediment classification.The roxann acoustic data was collected in a gridded trackline configuration, with tracklines spacing of 100 meters parallel to the shoreline and 200 meters perpendicular to the shoreline.This project is an extension of the work currently being performed in Delaware waters by DNREC's Delaware Coastal Program's Delaware Bay Benthic Mapping Project.
Process Date/Time 2008-01-01 00:00:00
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Acquisition Information

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FAQs

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Child Items

Rubric scores updated every 15m

Score Type Title
  Entity (ENT) de_db07_benthos
     
     
     

Related Items

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Catalog Details

Catalog Item ID 47866
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 2023-05-30 18:09+0000
Metadata Record Published 2018-04-11
Owner Org OCM
Metadata Publication Status Published Externally
Do Not Publish? N
Metadata Workflow State Published / External
Metadata Last Review Date 2018-04-11
Metadata Review Frequency 1 Year
Metadata Next Review Date 2019-04-11
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