Escapement Estimation, Spawner-recruit Analysis, and Escapement Goal Recommendation for Fall Chum Salmon in the Yukon River Drainage
Author: Steven J. Fleischman
Publisher:
Published: 2009
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOKHistorical escapement and run size of fall chum salmon Oncorhynchus keta was reconstructed from incomplete sonar, weir, counting tower, mark-recapture, aerial survey, and foot survey data of varying precision from 1974 to 2007. The resulting estimates of drainage-wide escapement were fitted to an age-structured Ricker spawner-recruit model. Bayesian statistical methods were employed, which allowed for realistic assessment of uncertainty in the presence of measurement error, serial correlation, and missing data.