NMML Small Cetacean (coastal) Aerial Survey 1998, Gulf of Alaska
Entry ID: seamap116

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Summary
Abstract: Researchers from NMML's Cetacean Assessment and Ecology Program
conducted the line transect aerial surveys for harbor porpoise and Dall's
porpoise from 27 May to 28 July 1998 in the Gulf of Alaska (offshore waters
from Cape Suckling to Unimak Pass), Prince William Sound, and Shelikof Strait.
Surveys were conducted from a NOAA Corps DeHavilland Twin Otter, flown at an
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Purpose: A 3-year survey began in 1997 to complete a new abundance
estimate by 1999. This survey will also include an abundance estimate for
Dall's porpoise (Phocoenoides dalli). Once the 3 years of surveys are
completed, the data will be used to estimate annual abundance of harbor
porpoise and Dall's porpoise, which is one of the key pieces of information
needed to manage ... View entire text
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Link: GET DATA
Description: Access data from the OBIS and OBIS-SEAMAP websites.
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Geographic Coverage
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Spatial coordinates   
  N: 60.84   S: 56.23   E: -144.29   W: -157.41

Data Set Citation
Dataset Originator/Creator: National Marine Mammal Laboratory
Dataset Title: NMML Small Cetacean (coastal) Aerial Survey 1998, Gulf of Alaska
Dataset Series Name: OBIS-SEAMAP
Dataset Release Date: 2004-06-10 15:26:00.093757-04
Dataset Release Place: http://seamap.env.duke.edu/
Dataset Publisher: OBIS-SEAMAP
Data Presentation Form: vector digital data
Online Resource: http://nmml.afsc.noaa.gov/
Parent DIF
This data set description is a member of a collection. The collection is described in
OBIS-SEAMAP
Temporal Coverage
Start Date: 1998-05-31
Stop Date: 1998-07-27
Location Keywords
Data Resolution
Latitude Resolution: 0.000167 Decimal degrees
Longitude Resolution: 0.000167 Decimal degrees
Horizontal Resolution Range: 1 meter - < 30 meters
Science Keywords
ISO Topic Category
Platform
DHC-6 > DeHavilland Twin Otter Ancillary Description
Project
Access Constraints ACCESS CONSTRAINTS: Open public unless otherwise noted.

DISTRIBUTION LIABILITY: Not to hold OBIS-SEAMAP liable for errors in the data.
While we have made every effort to ensure the quality of the database, we
cannot guarantee the accuracy of these datasets. Also please refer to Use
Constraints.
Use Constraints Not to use data contained in OBIS-SEAMAP in any publication, product, or
commercial application without prior written consent of the original data
provider. To cite both the data provider and OBIS-SEAMAP appropriately after
approval of use is obtained. Also please refer to Distribution Liability.
Ancillary Keywords
Data Set Progress
COMPLETE
Originating Center
Data Center
OBIS Spatial Ecological Analysis of Megavertebrate Populations Supplemental Info
Data Center URL: http://seamap.env.duke.edu/

Data Center Personnel
Name: PATRICK N. HALPIN
Phone: 919-613-8062
Email: phalpin at duke.edu
Contact Address:
Duke University
Box 90328
City: Durham
Province or State: NC
Postal Code: 27708
Country: USA
Distribution
Distribution Format: Shapefile
Personnel
EI FUJIOKA
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: 919-613-8021
Fax: 919-684-8741
Email: efujioka at duke.edu
Contact Address:
LSRC A321
Box 90328
City: Durham
Province or State: NC
Postal Code: 27708
Country: USA
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Creation and Review Dates
DIF Creation Date: 2007-01-22
Last DIF Revision Date: 2008-08-29

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