Chinook salmon age, sex, and length analysis from selected escapement projects on the Yukon River
By: [Karen E. Hyer and Cliff J. Schleusner]
Contributors: Schleusner, Cliff J.; U.S. Fish and Wildlife Service. Fisheries Information Services Division
Series: Alaska fisheries technical report -- no. 87
Publisher: U.S. Fish and Wildlife Service, Office of Subsistence Management, Fisheries Information Services Division
Published: 2005
Place of publication: Anchorage, Alaska
Language: eng
Number of pages: 62
Subjects: Chinook salmon; Statistics; Counting; Fish stock assessment
Description: Anecdotal information from fishers along the Yukon River suggests that the length of chinook salmon harvested and the proportion of female Chinook salmon in the run have decreased over time. To determine whether sex composition, size, age, and size-at-age of chinook salmon in spawning escapements have experienced a basin-wide decline over time, we examined escapement data from the Andreafsky, Anvik, Gisasa, Salcha, Chena, and Big Salmon Rivers. The scope of the analysis is limited to a relatively small number of spawning tributaries over a relatively short time period during which both fisheries and environmental changes have occurred confounding the ability to establish the sources of the decreasing size trend in Yukon River Chinook salmon.
Notes: Cover title.

"December 2005."

Includes bibliographical references (p. 12-15).

Also available in electronic format via Internet.

This item was harvested from the U.S. Fish and Wildlife Service web site:  http://alaska.fws.gov/asm/pdf/fisheries/reports/05-000final.pdf in Jan. 2006 for the Alaska State Publications Program; remote access available via StaticURL.