Beluga, Delphinapterus leucas, Distribution and Survey Effort in the Gulf of Alaska

Laidre, Kristin L. and Shelden, Kim E. W. and Rugh, David J. and Mahoney, Barbara A. (2000) Beluga, Delphinapterus leucas, Distribution and Survey Effort in the Gulf of Alaska. Marine Fisheries Review, 62(3), pp. 27-36.

[img]
Preview
PDF (The document's language is English .) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (520Kb) | Preview
Official URL: http://spo.nwr.noaa.gov/mfr623/mfr6234.pdf

Abstract

Beluga, Delphinapterus leucas, distribution in the Gulf of Alaska and adjacent inside waters was examined through a review of surveys conducted as far back as 1936. Although beluga sightings have occurred on almost every marine mammal survey in northern Cook Inlet (over 20 surveys reported here), beluga sightings have been rare outside the inlet in the Gulf of Alaska. More than 150,000 km of dedicated survey effort in the Gulf of Alaska resulted in sightings of over 23,000 individual cetaceans, of which only 4 beluga sightings (5 individuals) occurred. In addition, nearly 100,000 individual cetaceans were reported in the Platforms of Opportunity database; yet, of these, only 5 sightings (39 individuals) were belugas. Furthermore, approximately 19 beluga sightings (>260 individuals), possibly including resightings, have been reported without information on effort or other cetacean sightings. Of the 28 sightings of belugas outside of Cook Inlet, 9 were near Kodiak Island, 10 were in or near Prince William Sound, 8 were in Yakutat Bay, and 1 anomalous sighting was well south of the Gulf. These sightings support archaeological and commercial harvest evidence indicating the only persistent group of belugas in the Gulf of Alaska occurs in Cook Inlet.

Item Type: Article
Title: Beluga, Delphinapterus leucas, Distribution and Survey Effort in the Gulf of Alaska
Personal Creator/Author:
CreatorsEmail
Laidre, Kristin L.
Shelden, Kim E. W.
Rugh, David J.
Mahoney, Barbara A.
Refereed: Yes
Journal or Publication Title: Marine Fisheries Review
Volume: 62
Number: 3
Page Range: pp. 27-36
Date: 2000
ISSN: 0090-1830
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 9768
Depositing User: Patti M. Marraro
Date Deposited: 14 Aug 2012 20:27
Last Modified: 14 Aug 2012 20:27
URI: http://aquaticcommons.org/id/eprint/9768

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...