NMML Harbor Porpoise Aerial Survey, Alaska Peninsula, Replicate 2, 1992

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: National Marine Mammal Laboratory
Publication_Date: 20040809 16:49:12.46631704
Title: NMML Harbor Porpoise Aerial Survey, Alaska Peninsula, Replicate 2, 1992
Edition:
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: OBIS-SEAMAP
Issue_Identification:
Publication_Information:
Publication_Place: http://seamap.env.duke.edu/
Publisher: OBIS-SEAMAP
Other_Citation_Details:
Online_Linkage: http://nmml.afsc.noaa.gov/
Description:
Abstract:
On 6 July to 9 August 1992, as part of a larger study, Alaska harbor porpoise (Phocoena phocoena) abundance was investigated during an aerial survey off the south side of the Alaska Peninsula. Employing a Twin Otter as the survey platform, the second of two identical saw-tooth tracklines was flown at an altitude of 152.2 m (500ft) and at an airspeed of 100 kn. Line-transect methodology was used, and only those observations made during optimal conditions were analyzed. Density of harbor porpoises was calculated using line transect estimates based on perpendicular distances of sightings to the cruise track of the airplane. On average, porpoise group size and density off the south side of the Alaska Peninsula was 1.1 (SE = .10) and 2.03 groups/100 km^2 (SE=1.65). Although harbor porpoises, Phocoena phocoena, are known to occur throughout Alaska waters (Fiscus et al. 1976; Leatherwood and Reeves 1978; Lawry et al. 1982; Leatherwood et al. 1983), few estimates of abundance exist. In 1991, the National Marine Mammal Laboratory initiated a 3-yr study on Alaska harbor porpoises. The objectives of this program were to: 1) Obtain minimum population estimates in coastal waters using line transect methodology with a coefficient of variation for density estimates of less than 30% for each survey area. 2) Establish a baseline for detecting changes in abundance through time, for analysis of trends. SUPPLEMENTAL INFORMATION: Note: This dataset and associated effort data was updated on Sept 8, 2005. Those who downloaded them before that date should renew them. During the present study, it was not fiscally possible to survey all areas of the state in any one year. Accordingly, we selected sections of the state to survey in consecutive years to maximize the likelihood of including all of the animals for a particular area surveyed while minimizing the likelihood of significant movement between areas among survey years. CURRENTNESS REFERENCE: ground condition SPATIAL REFERENCE INFORMATION - GEODETIC MODEL Horizontal Datum Name: D_WGS_1984 Ellipsoid Name: WGS_1984 Semi-major Axis: 6378137.000000 Denominator of Flattening Ratio: 298.257224
Purpose:
Not Available
Supplemental_Information:
REFERENCE: M. Dahlheim et al. Harbor porpoise (Phocoena phocoena) abundance in Alaska: Bristol Bay to Southeast Alaska, 1991-1993. 2000. Marine Mammal Science. 16(1): 28-45.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19920731
Ending_Date: 19920731
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -159.93567
East_Bounding_Coordinate: -154.73167
North_Bounding_Coordinate: 57.63767
South_Bounding_Coordinate: 55.314
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH
Theme_Keyword: DHC-6 > DEHAVILLAND TWIN OTTER
Theme_Keyword: OBIS-SEAMAP > OBIS - SPATIAL ECOLOGICAL ANALYSIS OF MEGAVERTEBRATE POPULATIONS
Theme_Keyword: Abundance
Theme_Keyword: Aerial Survey
Theme_Keyword: Baleia
Theme_Keyword: Baleines
Theme_Keyword: Ballena De Aleta
Theme_Keyword: Ceo
Theme_Keyword: Cetacean
Theme_Keyword: Cetaceans
Theme_Keyword: Common Porpoise
Theme_Keyword: Dall's Porpoise
Theme_Keyword: Dauphins
Theme_Keyword: Dolphins
Theme_Keyword: Finback Whale
Theme_Keyword: Fin Whale
Theme_Keyword: Golfinho
Theme_Keyword: Harbor Porpoise
Theme_Keyword: Marine Mammal
Theme_Keyword: Marine Mammals
Theme_Keyword: Marine Mammal Survey
Theme_Keyword: Marsopa De Dall
Theme_Keyword: Marsouin Commun
Theme_Keyword: Marsouins
Theme_Keyword: Phocoena Phocoena
Theme_Keyword: Porpoises
Theme_Keyword: Res Marins
Theme_Keyword: Rorqual Commun
Theme_Keyword: Survey
Theme_Keyword: True's Porpoise
Theme_Keyword: Whales
Theme_Keyword: BIOTA
Theme_Keyword: BOUNDARIES
Theme_Keyword: ENVIRONMENT
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: LOCATION
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA > ALASKA PENINSULA
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.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: EI FUJIOKA
Contact_Person_Primary:
Contact_Person: JANICE WAITE
Contact_Position: TECHNICAL CONTACT
Contact_Position: DIF AUTHOR
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: LSRC A321
Address: Box 90328
City: Durham
State_or_Province: NC
Postal_Code: 27708
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NATIONAL MARINE MAMMAL LABORATORY
Address: 7600 Sand Point Way N.E.
City: Seattle
State_or_Province: Washington
Postal_Code: 98115-6349
Country: USA
Contact_Voice_Telephone: 919-613-8021
Contact_Voice_Telephone: 206-526-6554
Contact_Facsimile_Telephone: 919-684-8741
Contact_Electronic_Mail_Address: efujioka@duke.edu
Contact_Electronic_Mail_Address: Janice.Waite@noaa.gov
Browse_Graphic:
Browse_Graphic_File_Name: http://seamap.env.duke.edu/prod/images/datasets/dataset_136_l.png
Browse_Graphic_File_Description:
Browse_Graphic_File_Type:
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
Back to Top
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000167 Decimal degrees
Longitude_Resolution: 0.000167 Decimal degrees
Geographic_Coordinate_Units: Decimal degrees
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: IOBIS/OBIS-SEAMAP > OBIS Spatial Ecological Analysis of Megavertebrate Populations
Contact_Person: PATRICK N. HALPIN
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Duke University
Address: Box 90328
City: Durham
State_or_Province: NC
Postal_Code: 27708
Country: USA
Contact_Voice_Telephone: 919-613-8062
Contact_Electronic_Mail_Address: phalpin@duke.edu
Resource_Description: seamap136
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://seamap.env.duke.edu/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://iobis.org/mapper/?dataset=2014http://seamap...
Access_Instructions:
Access data from the OBIS and OBIS-SEAMAP websites.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://seamap.env.duke.edu/prod/mapservice/googlem...
Access_Instructions:
OBIS-SEAMAP Map Service
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://seamap.env.duke.edu/prod/services/datasets/...
Access_Instructions:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://seamap.env.duke.edu/
Access_Instructions:
Ocean Biogeographic Information System - Spatial Ecological Analysis of Megavertebrate Populations (OBIS-SEAMAP)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.iobis.org/
Access_Instructions:
Ocean Biogeographic Information System (OBIS)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.usgs.gov/core_science_systems/csas/meta...
Access_Instructions:
Biological Data Profile
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.esri.com/metadata/esriprof80.html
Access_Instructions:
ESRI Metadata Profile
Fees: Not Available
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20070122
Metadata_Review_Date: 20140313
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: EI FUJIOKA
Contact_Position: TECHNICAL CONTACT
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: LSRC A321
Address: Box 90328
City: Durham
State_or_Province: NC
Postal_Code: 27708
Country: USA
Contact_Voice_Telephone: 919-613-8021
Contact_Facsimile_Telephone: 919-684-8741
Contact_Electronic_Mail_Address: efujioka@duke.edu
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Back to Top
[ Update this Record ]


Link to Web Site