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Statistics and Actuarial Science - Theses, Dissertations, and other Required Graduate Degree Essays

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An Investigation into the Factors Influencing Escapement Estimation for Chinook Salmon (Oncorhynchus tshawytscha) on the Lower Shuswap River, British Columbia

Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2004
Abstract: 

The area-under-the-curve (AUC), method based on helicopter visual enumeration, is a commonly used technique to estimate escapement of chinook salmon (Oncorhynchus tshawytscha) for the Fraser River and its tributaries. Two key factors associated with this method are survey life and observer efficiency. The survey life currently assumed by Fisheries and Oceans Canada (DFO) for Thompson Basin streams is seven days and for most counting flights the assumed observer efficiency is 100%. Telemetry and tower observations were used to estimate annual (2000-2002) survey lives for male (telemetry) and female (telemetry and tower observation) chinook salmon in the Lower Shuswap River. Mark-recapture based survey lives were directly estimated by dividing the mark-recapture escapement estimate by the AUC estimate of total spawner days. Observer efficiency was estimated by comparing observer counts from helicopters to counts from photographs. Various combinations of total fish counts, observer efficiencies, and survey lives were used in AUC escapement estimates, and compared to mark-recapture and peak count estimates. Survey lives varied annually. Many of the estimated mean survey lives were significantly less than seven days; mark-recapture based survey lives were generally less than those estimated from telemetry and observations from towers; and mean survey lives for males were higher than for females. The mean observer efficiency of helicopter enumeration was 97% (95% CI is * 6%), this is not significantly different than the 100% assumed by DFO.

Document type: 
Thesis
File(s): 
Supervisor(s): 
Carl J. Schwarz
Department: 
Science: Department of Statistics and Actuarial Science
Thesis type: 
(Thesis) M.Sc.

Hierarchical agglomerative cluster analysis with a contiguity constraint

Author: 
Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2004
Document type: 
Thesis
File(s): 
Supervisor(s): 
Michael A. Stephens
Department: 
Science: Department of Statistics and Actuarial Science
Thesis type: 
(Research project) M.Sc.

Obtaining non-isomorphic two-level regular fractional factorial designs

Author: 
Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2004
Document type: 
Thesis
File(s): 
Supervisor(s): 
Randy R. Sitter
Department: 
Science: Department of Statistics and Actuarial Science
Thesis type: 
(Research project) M.Sc.

Logistic regression under independence of genetic and non-genetic covariates in a case-control study

Author: 
Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2004
Document type: 
Thesis
File(s): 
Supervisor(s): 
Jinko Graham
Brad McNeney
Department: 
Science: Department of Statistics and Actuarial Science
Thesis type: 
(Research project) M.Sc.

Ranking non-regular designs

Author: 
Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2004
Document type: 
Thesis
File(s): 
Supervisor(s): 
Randy R. Sitter
Department: 
Science: Department of Statistics and Actuarial Science
Thesis type: 
(Dissertation) Ph.D.

Predicting the 2004 presidential election

Author: 
Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2004
Document type: 
Thesis
File(s): 
Supervisor(s): 
Tim Swartz
Department: 
Science: Statistics and Actuarial Science
Thesis type: 
Project (M.Sc.)

The application of the case-cohort method to data on pulp and paper mill workers in British Columbia

Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2003
Document type: 
Thesis
File(s): 
Supervisor(s): 
Randy R. Sitter
Department: 
Science: Statistics and Actuarial Science
Thesis type: 
Project (M.Sc.)

Nonparametric simultaneous modelling of operative mortality and long-term survival after coronary artery bypass surgery

Author: 
Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2002
Document type: 
Thesis
File(s): 
Supervisor(s): 
Charmaine Dean
Department: 
Science: Statistics and Actuarial Science
Thesis type: 
Project (M.Sc.)

Logistic regression with missing haplotypes

Author: 
Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2002
Document type: 
Thesis
File(s): 
Supervisor(s): 
Jinko Graham
Department: 
Science: Statistics and Actuarial Science
Thesis type: 
Project (M.Sc.)

Resolution theorem proving revisited

Author: 
Peer reviewed: 
No, item is not peer reviewed.
Date created: 
1995
Document type: 
Thesis
File(s): 
Supervisor(s): 
S.K. Thomason
Department: 
Science: Department of Mathematics
Thesis type: 
Thesis (M.Sc.)