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How do fish capture their food?

How do fish capture their food?. John Postlethwait, Bill Cresko, Mark Currey University of Oregon. Outline. Tuesday 5. Modeling fish feeding. 6. What fish did we catch? 7. An experiment: Different mouth shapes. Monday 1. Ways that fish catch food. 2. Mouth bones.

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How do fish capture their food?

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  1. How do fish capture their food? John Postlethwait, Bill Cresko, Mark Currey University of Oregon

  2. Outline Tuesday 5. Modeling fish feeding. 6. What fish did we catch? 7. An experiment: Different mouth shapes Monday 1. Ways that fish catch food. 2. Mouth bones. 3. Let’s catch some fish. 4. Fish mouth bones.

  3. Feeding diversity

  4. Dusky farmerfish

  5. Dusky farmerfish movie W. Jim Cooper

  6. How does it catch food? Dusky farmerfish.

  7. How does it catch food? It rams into its food with an open mouth! Dusky farmerfish.

  8. Blue Green Chromis http://www.akwarium.gdynia.pl/galeria/Rybymorskietropikalne/images/Chromis-viridis.jpg

  9. Blue green Chromis movie W. Jim Cooper

  10. How does it catch food? Blue green Chromis movie

  11. How does it catch food? It sucks food into its mouth. Blue green Chromis movie

  12. Eat an M&M like you were a ram-feeding farmerfish http://i72.photobucket.com/albums/i177/funnyhahalol/MMs/AAAHeaderpic2400.jpg

  13. Eat an M&M like you were a suction-feeding chromis http://i72.photobucket.com/albums/i177/funnyhahalol/MMs/AAAHeaderpic2400.jpg

  14. Bones make the mouth What animal is this? http://www.turbosquid.com/FullPreview/Index.cfm/ID/238272

  15. Bones make the mouth http://www.turbosquid.com/FullPreview/Index.cfm/ID/238272

  16. Chew an M&M and feel how your jaw moves.

  17. Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  18. Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  19. Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  20. Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  21. Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  22. Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  23. Why do different animals have different shaped mouths? Because of what they eat http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  24. Why do different animals have different shaped mouths? Because of what they eat http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  25. Why do different animals have different shaped mouths? Because of what they eat http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158

  26. Let’s catch some fish and see what their mouths are like.

  27. WHAT DO THEY EAT IN THE LAKE?

  28. Outline Tuesday 5. Modeling fish feeding. 6. What fish did we catch? 7. An experiment: Different mouth shapes Monday • Ways that fish catch food. • Mouth bones. • Let’s catch some fish. • Fish mouth bones.

  29. Jaw levers and links

  30. Jaw levers and links 7 H G 6 1 A F 2 5 B C 4 E D 3

  31. Jaw lever cut outs 7 G 1 1 7 A O 2 6 2 6 2 B C F 4 Muscles attach to point 5 and pull to the right to open the mouth. Problem: Where is the best place to place a muscle to close the mouth? 4 5 3 4 D’ is an ecological variant of D. Problem: How does shape of this one bone affect function? 4 D’ D 3 5 3 E 3

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