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  • Unit 3: Trout Biology

Unit 3: Trout Biology

Please note, all answer sheets are available by request only. If you would like editable versions of the documents, please reach out to TU’s Stream Education Manager, Cecily Nordstrom.

  • Lesson 3.1 Understanding Trout Physiology
    • Concepts:  Dorsal fin, adipose fin, anal fin, caudal fin, pectoral fins, pelvic fins, nares, lateral line, gills, gill rakes
    • Lesson 3.1 Understanding Trout Physiology Lesson Plan
    • Lesson 3.1 Understanding Trout Physiology Presentation
    • Activity (in-class):  worksheet on trout physiology; fish dissection
    • Lesson 3.1 Understanding Trout Physiology Analysis Questions
    • Lesson 3.1 Understanding Trout Physiology Analysis Answers – by request
  • Lesson 3.2 Understanding the Trout Life Cycle
    • Concepts:  species definition/hybridization, redd, milt, alevin, fry, smolt, anadromous, endangered species
    • Lesson 3.2 Understanding the Trout Life Cycle Lesson Plan
    • Lesson 3.2 Understanding the Trout Life Cycle Presentation
    • Activities (in-class):  student research project/presentation on individual trout species
    • Make a TU connection: participate in TIC (national) or Adopt-A-Trout (currently WY only)
  • Lesson 3.3 Measuring Abiotic Requirements for Trout
    • Concepts:  Zone of tolerance, pH, dissolved oxygen, biological oxygen demand (BOD), oxygen sag curve
    • Lesson 3.3 Measuring Abiotic Requirements for Trout Lesson Plan
    • Lesson 3.3 Measuring Abiotic Requirements for Trout Presentation
    • Activities:
      • In-class:  DO measurements of tap water with different temperatures
        • Lesson 3.3 In-class Student Sheet
        • Lesson 3.3 In-class Answer Sheet – by request
      • Field-based:  BOD measurements of stream samples
    • Lesson 3.3 Measuring Abiotic Requirements for Trout Analysis Questions
    • Lesson 3.3 Measuring Abiotic Requirements for Trout Answers – by request
    • Make a TU connection:  chapter/staff help with stream sampling in field; TIC

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Updated on April 4, 2025

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