[Keyword='whales']
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NMML Harbor Porpoise Aerial Survey, SE Alaska, Replicate 2, 1993
Entry ID:
seamap140
Summary
Abstract:
On 1 to 26 June 1993, as part of a larger study, Alaska harbor
porpoise (Phocoena phocoena) abundance was investigated during an aerial survey from Prince William Sound to Dixon Entrance. Employing a Twin Otter as the survey platform, the second of three identical saw-tooth tracklines was flown at an altitude of 152.2 m (500ft) and at an airspeed of 100 kn. Line-transect ...  Purpose: 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 ...
Related URL
Data Set Citation
Dataset Originator/Creator:
National Marine Mammal Laboratory
Dataset Title:
NMML Harbor Porpoise Aerial Survey, SE Alaska, Replicate 2, 1993
Dataset Series Name:
OBIS-SEAMAP
Dataset Release Date:
2004-08-09 16:51:40.622642-04
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/
Temporal Coverage
Start Date:
1992-01-01
Stop Date:
2004-12-31
Location Keywords
Science Keywords
ISO Topic Category
Platform
Instrument
Ancillary Keywords
Data Center
Publications/References
Hansen et al. (2005), Earth's Energy Imbalance: Confirmation and Implications, 308, 1431-1435, Science
Creation and Review Dates
DIF Creation Date:
2011-12-06
Last DIF Revision Date:
2011-12-06
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