Chapter 4. Theory

• 4.1 - Introduction
  • Computation Flow
• 4.2 - Biological Processes
  • Natural Ocean Mortality
  • Maturation
  • Adult Escapement
  • Pre-Spawning Mortality
• 4.3 - Production Processes
  • Overview
  • Hatchery Production
  • Natural Stocks
• 4.4 - Fishing Mortality
  • Estimating Fishing Mortality Rates
  • Preterminal vs Terminal Fishing Mortalities
  • Legal Harvests
  • Estimating Proportion Vulnerable
  • Shaker Mortality
    • Shaker Calculations
    • Table 4.4 Spreadsheet illustration of sample shaker calculations for a hypothetical fishery harvesting three stocks
  • Chinook Non-Retention Mortality
    • CNR Mortality Computation Overview
    • Harvest Ratio Method
    • Season Length Method
    • Reported Encounter Method
• 4.5 - Catch Ceiling Management
  • Overview
  • Setting Catch Ceilings
• 4.6 - In-River Management
  • Nonlinear Harvesting Formula
  • Fixed Escapement Algorithm
  • Fixed Combined Harvest Rate Algorithm