Main Points:

• Habitat requirements of salmonids are examined - particularly temperature and oxygen
  
• The concept of gases dissolved in water is introduced
• The spawning behaviour of salmonids is examined
• How the aquarium is set up to provide a suitable habitat is described
• Microscope images of trout eggs are examined and measured
• Students can observe embryonic development in a salamander (time lapse)

Video Lesson (Approx 38 mins)


Classroom Activity:

• Egg observation worksheet