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Bony Fish

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100's of eggs/ individual are laid. Salmon spawning. Eggs with milt ( sperm) Male salmon. Fry or fingerlings = baby fish. Good times. Tough times ... – PowerPoint PPT presentation

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Title: Bony Fish


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Bony Fish Osteicthyes
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Closed circulation with 2 chambered heart
( 1 atrium and 1 ventricle ) Coldblooded/
ectothermic - cannot regulate their
temperature
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  • Fish have a 2 chambered heart
  • Heart Gills
  • Body
  • a low pressure system
  • slow flow

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COUNTER CURRENT RULES when exchange of gases or
heat is needed
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  • Reproduction -
  • dioecious,
  • external fertilization,
  • eggs are soft and must be laid in water
  • to prevent drying out,
  • 100s of eggs/ individual are laid

Salmon spawning
12
Male salmon
Eggs with milt ( sperm)
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Fry or fingerlings baby fish
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Scales tell a story
Good times Tough times
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