NMML Killer Whale Vessel, Alaska Peninsula 1993
National Marine Mammal Laboratory

Dataset credit

National Marine Mammal Laboratory

Contacts

RoleNameOrganization 
Primary contact Kimberly Goetz Duke University
Primary contact Janice Waite National Marine Mammal Laboratory
Data entry Ei Fujioka Duke University

Citation

Abstract

From 13 July to 24 August, 1993, a part of a larger study, waters off the Alaskan Peninsula were surveyed for killer whales (Orcinus orca) from the NOAA Glorita using line-transect methodology. To provide adequate coverage throughout the area, the study was limited to areas of known killer whale concentrations. The vessel was 44.8 m (147 ft) long and had a bridge height of 8.8 m (29 feet).

Purpose

The objectives of this study were as follows:
1) Develop a photographic identification catalogue of each killer whale encountered, and its pod, to determine pod identity, distribution, and movements relative to annual survey effort,
2) Obtain minimum population estimated of killer whales in the southeastern Bering Sea, central/eastern Aleutian Islands, western Gulf of Alaska (including Prince William Sound), and southeastern Alaska, and
3) Establish baseline data for detecting annual changes in abundance.

Supplemental information

This dataset and associated effort data were updated on September 8, 2005. Those who downloaded them before that date should renew them.

References

Dahlheim. M.E. 1994. Abundance and distribution of killer whales (Orcinus orca) in Alaska, 1993. Annual report for 1992 to the Office of Protected Resources, NMFS, NOAA, Silver Spring, MD. 28 pp.

Attributes

Overview

Attributes described below represent those in the original dataset provided by the provider.
Only minimum required attributes are visible and downlodable online. Other attributes may be obtained upon provider's permission unless otherwise noted below.

Attributes in dataset provided

Attribute (table column)Description
tsnSpecies ITIS TSN
scientific
group
oidUnique ID number (generated by SEAMAP)
OBIS-SEAMAP ID138
Seabirds0
Marine mammals88
Sea turtles0
Rays and sharks0
Other species0
Non spatial0
Non species0
Total88
Date, Begin1993-08-05
Date, End1993-08-11
Temporal prec.111111
Latitude54.16 - 58.04
Longitude-166.41 - -152.28
Coord. prec.5 decimal digits
PlatformBoat
Data typeAnimal sighting
EffortYES (ID: 167)
Traveled (km)589
Effort hours65
Registered2004-08-09
Updated2004-08-09
StatusPublished
Sharing policy CC-BY-NC (Minimum)
Also availalbe from iOBIS
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1