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Pages Common to Both Models

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About This Conceptual Model

Tools (Common to Both Models)

• Terminology
• Acronyms

Site Map (this page)

Biological and Ecological Effects Conceptual Model

Main Page

Primary Driver: Exposure of Fish to Low DO Concentrations

• Secondary Driver: Timing of Low DO Episodes
• Secondary Driver: Occurrence of Sensitive Life Stages in the Stockton Deep Water Ship Channel

Primary Driver: Ability of Fish to Avoid and Tolerate Low DO Concentrations

• Secondary Driver: Ability to Tolerate Low DO Concentrations
• Secondary Driver: Existence and Accessibility of Alternative Habitats

Primary Driver: Susceptibility of Fish to Adverse Effects of Low DO Concentrations

• Secondary Driver: Adverse Effects of Low Dissolved-Oxygen Concentrations on Food Web
• Secondary Driver: Exposure to Parasites and Pathogens
• Secondary Driver: Exposure to Toxic Substances
• Secondary Driver: Exposure to High Water Temperatures
• Secondary Driver: Activity of Fish While in the Deep Water Ship Channel

Adverse Effects of Exposure to Low Dissolved-Oxygen Concentrations

• Adverse Effect: Direct Mortality
• Adverse Effect: Reduced Swimming Performance
• Adverse Effect: Reduced Growth
• Adverse Effect: Impaired Development
• Adverse Effect: Reduced Spawning Success
• Adverse Effect: Reduced Fecundity/Fertility
• Adverse Effect: Altered Behavior
• Adverse Effect: Indirect Effects (Susceptibility to Predation, Susceptibility to Pathogens, Susceptibility to Contaminants)

Tools (Biological and Ecological Effects Model)

• How to Use This Model
• References Cited
• Links to Information on Affected Species from Other Sources (not yet available)
• Links to Other Conceptual Models (not yet available)

Physical and Chemical Processes Conceptual Model

Main Page

Basic Concepts (A guide to understanding the basic physical and chemical processes)

Reach 1

• Reach 1: Primary Driver—Imported Dissolved Oxygen
• Reach 1: Primary Driver—Reaeration
     Secondary Driver—Water Temperature
     Secondary Driver—Flow Velocity
     Secondary Driver—Channel Geometry
• Reach 1: Primary Driver—Photosynthesis
     Secondary Driver—Algal Biomass Concentration
     Secondary Driver—Turbidity
     Secondary Driver—Water Temperature
     Secondary Driver—Nutrients
• Reach 1: Primary Driver—BOD Concentrations
     Secondary Driver—Imported BOD Concentrations
     Secondary Driver—CBOD Concentrations
     Secondary Driver—NBOD Concentrations
     Secondary Driver—Water Temperature
• Reach 1: Primary Driver—SOD Concentrations
     Secondary Driver—Particulate BOD Concentration
     Secondary Driver—Iron and Sulfate Compound Concentrations
     Secondary Driver—Water Temperature
• Reach 1: Primary Driver—Residence Time
     Secondary Driver—Flow
     Secondary Driver—Channel Geometry
• Reach 1: Reach 1 DO and BOD Transported to Reach 2

Reach 2

• Reach 2: Primary Driver—Imported Dissolved Oxygen
• Reach 2: Primary Driver—Reaeration
     Secondary Driver—Water Temperature
     Secondary Driver—Flow Velocity
     Secondary Driver—Channel Geometry
• Reach 2: Primary Driver—Photosynthesis
     Secondary Driver—Algal Biomass Concentration
     Secondary Driver—Turbidity
     Secondary Driver—Water Temperature
     Secondary Driver—Nutrients
• Reach 2: Primary Driver—BOD Concentrations
     Secondary Driver—Imported BOD Concentrations
     Secondary Driver—CBOD Concentrations
     Secondary Driver—NBOD Concentrations
     Secondary Driver—Water Temperature
• Reach 2: Primary Driver—SOD Concentrations
     Secondary Driver—Particulate BOD Concentration
     Secondary Driver—Iron and Sulfate Compound Concentrations, and
     Secondary Driver—Water Temperature)
• Reach 2: Primary Driver—Residence Time
     Secondary Driver—Flow
     Secondary Driver—Channel Geometry
• Reach 2: Reach 2 DO and BOD Transported to Reach 3

Reach 3

• Reach 3: Primary Driver—Imported Dissolved Oxygen
• Reach 3: Primary Driver—Reaeration
     Secondary Driver—Water Temperature
     Secondary Driver—Flow Velocity
     Secondary Driver—Channel Geometry
• Reach 3: Primary Driver—Photosynthesis
     Secondary Driver—Algal Biomass Concentration
     Secondary Driver—Turbidity
     Secondary Driver—Water Temperature
     Secondary Driver—Nutrients
• Reach 3: Primary Driver—BOD Concentrations
     Secondary Driver—Imported BOD Concentrations
     Secondary Driver—CBOD Concentrations
     Secondary Driver—NBOD Concentrations
     Secondary Driver—Water Temperature
• Reach 3: Primary Driver—SOD Concentrations
     Secondary Driver—Particulate BOD Concentration
     Secondary Driver—Iron and Sulfate Compound Concentrations, and
     Secondary Driver—Water Temperature)
• Reach 3: Primary Driver—Residence Time
     Secondary Driver—Flow
     Secondary Driver—Channel Geometry

Tools (Physical and Chemical Processes Conceptual Model)

• How to Use This Model
• Table 1. Physical Properties of the San Joaquin River and DWSC
• Data Atlas
• References Cited