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Basic Fish Anatomy

Basic Fish Anatomy. Fin Functions. Stabilize, turn, hover, brake, etc. Pectoral Pelvic Stabilize and straighten Dorsal Anal Propel forward Caudal. You can tell a lot about a fish by looking at his fins…. Fin Pics. Scales. Bony substance – protection Epidermal layer – mucous cells.

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Basic Fish Anatomy

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  1. Basic Fish Anatomy

  2. Fin Functions • Stabilize, turn, hover, brake, etc. • Pectoral • Pelvic • Stabilize and straighten • Dorsal • Anal • Propel forward • Caudal

  3. You can tell a lot about a fish by looking at his fins…

  4. Fin Pics

  5. Scales • Bony substance – protection • Epidermal layer – mucous cells

  6. Swim Bladder • Maintains buoyancy in water column • Sharks and rays

  7. Fish Respiration • Water taken into mouth • Passed over gills • Out gillslits • O2 & CO2 exchange

  8. Eyesight • Similar to humans • No eyelids

  9. Hearing • Water more efficient than air • No external ear • Vibrations pass through body to otoliths

  10. Smell • Nostrils • Olfactory organ

  11. Taste • Taste buds in mouth, skin, lips, fins • Catfishes – barbels

  12. Carfish barbel

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