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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? 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. 3. Let’s catch some fish. 4. Fish mouth bones.
Dusky farmerfish movie W. Jim Cooper
How does it catch food? Dusky farmerfish.
How does it catch food? It rams into its food with an open mouth! Dusky farmerfish.
Blue Green Chromis http://www.akwarium.gdynia.pl/galeria/Rybymorskietropikalne/images/Chromis-viridis.jpg
Blue green Chromis movie W. Jim Cooper
How does it catch food? Blue green Chromis movie
How does it catch food? It sucks food into its mouth. Blue green Chromis movie
Eat an M&M like you were a ram-feeding farmerfish http://i72.photobucket.com/albums/i177/funnyhahalol/MMs/AAAHeaderpic2400.jpg
Eat an M&M like you were a suction-feeding chromis http://i72.photobucket.com/albums/i177/funnyhahalol/MMs/AAAHeaderpic2400.jpg
Bones make the mouth What animal is this? http://www.turbosquid.com/FullPreview/Index.cfm/ID/238272
Bones make the mouth http://www.turbosquid.com/FullPreview/Index.cfm/ID/238272
Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
Different animals have different shaped mouths. http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
Why do different animals have different shaped mouths? Because of what they eat http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
Why do different animals have different shaped mouths? Because of what they eat http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
Why do different animals have different shaped mouths? Because of what they eat http://www.turbosquid.com/FullPreview/Index.cfm/ID/265158
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.
Jaw levers and links 7 H G 6 1 A F 2 5 B C 4 E D 3
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