2008 supplemental status review and extinction assessment of Cook Inlet belugas (Delphinapterus leucas)

Hobbs, Roderick C.; Shelden, Kim E. W.; Angliss, Robyn P.; Brix, Kaja; Burke, K.; Goetz, K. T. (Kimberly T.); Mahoney, Barbara A.; Norman, Stephanie A.; O'Corry-Crowe, G.; Rugh, David J.; Sims, Christy L.; Smith, Brian Eugene; Vos, D. J.

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

2008 supplemental status review and extinction assessment of Cook Inlet belugas (Delphinapterus leucas)

2008
By Hobbs, Roderick C. ; Shelden, Kim E. W. ; Angliss, Robyn P. ; ...
Series: AFSC processed report ; 2008-08

[PDF-2.86 MB]

Details You May Also Like

Details:

Personal Author:

Hobbs, Roderick C. ; Shelden, Kim E. W. ; Angliss, Robyn P. ; Brix, Kaja ; Burke, K. ; ... More +

Hobbs, Roderick C. ; Shelden, Kim E. W. ; Angliss, Robyn P. ; Brix, Kaja ; Burke, K. ; Goetz, K. T. (Kimberly T.) ; Mahoney, Barbara A. ; Norman, Stephanie A. ; O'Corry-Crowe, G. ; Rugh, David J. ; Sims, Christy L. ; Smith, Brian Eugene ; Vos, D. J. Less -
Corporate Authors:

Alaska Fisheries Science Center (U.S.)
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) Less -
Description:

"The contraction of the range of this population northward into the upper Inlet makes it far more vulnerable to catastrophic events with the potential to kill a significant fraction of the population. The population is not growing at 2% to 6% per year as had been anticipated since the cessation of unregulated hunting. The population is discrete and unique with respect to the species, and if it should fail to survive, it is highly unlikely that Cook Inlet would be repopulated with belugas. This would result in a permanent loss of a significant portion of their. The importance of seasonal anadromous fish runs in Cook Inlet to belugas is evident. The bulk of their annual nutrition is acquired during the summer months. Belugas in cook Inlet are unique to Alaska given their summer habitat is in close proximity to the largest urban area in the state. While the impact of disease and parasitism on this population has not been quantified, this population is at greater risk because of its small size and limited range such that a novel disease would spread easily through this population. The PVA shows a 26% probability of extinction in 100 years and 70% probability of extinction in 300 years (for the model assuming one predation mortality per year and a 5% annual probability of an unusual mortality event killing 20% of the population). It is likely that the Cook Inlet beluga population will continue to decline or go extinct over the next 300 years unless factors determining its growth and survival are altered in its favor"--Page xv.
Content Notes:

by Roderick C. Hobbs and Kim E.W. Shelden ; with contributions from R. Angliss, K. Brix, K. Burke, K. Goetz, B. Mahoney, S. Norman, G. O'Corry-Crowe, D. Rugh, C. Sims, B. Smith, and D. Vos.

"October 2008."

Also available online in PDF via the Alaska fisheries Science Center home page.

Includes bibliographical references (pages 71-76).
Keywords:

[+]

Conservation Endangered Species Marine Mammal Populations Marine Mammals Risk Assessment Whale Stock Management White Whale
Series:

AFSC processed report ; 2008-08
Document Type:

Technical Report
Place as Subject:

Alaska ; Cook Inlet

Alaska ; Cook Inlet Less -
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:f8fc42d02264ea43241872b1557613cc7ac64ba534ce373d53609964f379fadc
Download URL:

https://repository.library.noaa.gov/view/noaa/9027/noaa_9027_DS1.pdf
File Type:

No Additional Files

More +

2008 supplemental status review and extinction assessment of Cook Inlet belugas (Delphinapterus leucas)

Details:

Supporting Files

You May Also Like