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A review of Fish Movement

A review of Fish Movement. FIRST. Remember what each of the fish fins or fin pairs does?. Caudal (tail) fin- - provides thrust , and control the fish ’ s direction. Pectoral fins -- act mostly as rudders and hydroplanes to control yaw and pitch. Also act as brakes.

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A review of Fish Movement

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  1. A review of Fish Movement FIRST

  2. Remember what each of the fish fins or fin pairs does?

  3. Caudal (tail) fin-- provides thrust, and control the fish’s direction. Pectoral fins-- act mostly as rudders and hydroplanes to control yaw and pitch. Also act as brakes. Pelvic fins-- mostly controls pitch. Also act as brakes. Dorsal & anal fins-- control roll.

  4. A review of Trout External Anatomy NEXT

  5. Trout External Anatomy

  6. AHHHHH, more review!

  7. Let’s continue NOW

  8. INSIDE the trout

  9. Internal Anatomy

  10. Remember: we learn • What the part is called (Name) • Where the part is (Location) • What the part does (Function)

  11. Some internal parts of a fish are: • Stomach • Esophagus • Heart • Liver • Intestines • Kidney • Swim ( Air) bladder • Pyloric caeca • (pn: Pie Low Rick See Kah) • Blood Vessels (veins and arteries) • Brain • ‘Ears’ • Muscles** • Skeleton**

  12. Remember: The skeleton is really part of the internal anatomy. Muscles are too!

  13. Trout Internal Anatomy

  14. Where is the: • Kidney • Intestine • Spleen • Blood vessels

  15. Where is the Heart Liver Pyloric caeca Stomach/ Intestine

  16. The fish heart has 2-chambers.

  17. What is this called? • Air Bladder or Swim Bladder

  18. Fish’s brain location Brain

  19. Trout brain (model)

  20. Do fish have ‘ears’?

  21. If they do, where are they?If they don’t, how do fish hear?

  22. Fish’s Inner Ear

  23. How the otolith works

  24. X-ray view of a fish’s “otolith”(‘ear stone’).

  25. REVIEW!

  26. NEXT TIME

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