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EMAP - Benthic replicate abundance, grab and summary data
Entry ID: epa_emap

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Abstract: Benthic Grab Information, Benthic Replicate Abundance data, Benthic Summary Data by station characterize the benthic grab data from samples collected in National Coastal Assessment (NCA) Estuaries. These data were collected from 2000-2004 for the marine coastal states of the contiguous United States, Alaska, Hawaii, and the US territories of Puerto Rico and the Virgin Islands. For Benthic Grab ... View entire text
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Geographic Coverage
Spatial coordinates   
  N: 48.98   S: 19.72   E: -66.95   W: -160.14

Data Set Citation
Dataset Originator/Creator: U. S. Environmental Protection Agency
Dataset Title: EMAP-Benthic Grab Information, the Benthic Replicate Abundance data
Dataset Series Name: Environmental Monitoring and Assessment Program (EMAP)
Dataset Publisher: U. S. Environmental Protection Agency
Online Resource:
Parent DIF
This description is a member of a collection. The collection is described in

Temporal Coverage
Start Date: 1990-07-19
Stop Date: 2004-09-29
ISO Topic Category
SHIPS Ancillary Description
GRAB SAMPLERS Ancillary Description
Quality Sample Collection: Care was taken to minimize disturbance to the sediment grabs. Grabs that were incomplete, slumped, less than 7 cm in depth, or comprised chiefly of shelly substrates were discarded. The chance of sampling the same location was minimized by repositioning the boat (five meters downstream) after three sampling attempts.

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Access Constraints EMAP requests that all individuals who download EMAP data acknowledge the source of these data in any reports, papers, or presentations. If you publish these data, please include a statement similar to: "Some or all of the data described in this article were produced by the U. S. Environmental Protection Agency through its Environmental Monitoring and Assessment Program (EMAP)".
Use Constraints Acknowledge the use of specific records from contributing EMAP databases in the form appearing in the 'access constraints' field there of; and acknowledge the use of the OBIS facility.

For information purposes, email to the full citation of any publication made (printed or electronic) that cites OBIS or any constituent part.

Recognize the limitations of data in OBIS.
Data Center
International Ocean Biogeographic Information System Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (732) 932-6555 x 565
Fax: (732) 932-8578
Email: evberghe at
Contact Address:
Institute of Marine and Coastal Sciences
Rutgers University
71 Dudley Road
City: New Brunswick
Province or State: NJ
Postal Code: 08901-8521
Country: USA
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Distribution Media: HTTP
Distribution Format: OBIS Schema
Fees: None
Contact Address:
27 Tarzwell Drive
City: Narragansett
Province or State: Rhode Island
Postal Code: 02882-1197
Country: USA
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Strobel, C.J. 2000. Environmental Monitoring and Assessment Program: Coastal 2000 - Northeast component: field operations manual. Narragansett (RI): U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division. EPA/620/R-00/002. 68 p.

U.S. EPA. 2001. National Coastal Assessment: Field Operations Manual. U.S. ... View entire text
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2005-11-25
Last DIF Revision Date: 2017-08-23