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Osteichthyes – “bony fish”

Osteichthyes – “bony fish”. Examples – trout, carp, goldfish, tuna. Success. Most successful among the vertebrates – largest # of species . over 29,000 species. Ichthyology. Study of fish. Traits. Skeleton of bone. Traits. jaws. Parrot fish. Sheepshead fish. Traits.

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Osteichthyes – “bony fish”

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  1. Osteichthyes – “bony fish” • Examples – trout, carp, goldfish, tuna

  2. Success • Most successful among the vertebrates – largest # of species over 29,000 species

  3. Ichthyology • Study of fish

  4. Traits • Skeleton of bone

  5. Traits • jaws

  6. Parrot fish Sheepshead fish

  7. Traits • Mucousy skin with overlapping scales

  8. Traits • Paired fins

  9. Traits • 2 chambered heart

  10. Traits • ectotherms

  11. Traits • Most are oviparous or ovoviparous

  12. Traits • Homocercal tail fin

  13. Traits • 1 pair of gill slits covered by an operculum

  14. Traits • Swim bladder

  15. Spawning • Reproductive process of fish involving external fertilization

  16. Roe – fish eggs • Milt – fish sperm • Fry – baby fish

  17. Fish structure

  18. Nostrils • for smell only

  19. Eyes • Nearsighted, spherical lens

  20. Lateral line • Detects vibrations

  21. Operculum • Covers and protects gills, also pumps water over gills so they don’t have to swim constantly

  22. Fins • More flexible which allows more mobility

  23. Dorsal • Fin along the back

  24. Sailfish

  25. Ocean Sunfish – their large dorsal fin often gets mistaken for a shark’s

  26. Caudal • Tail fin

  27. Pectoral • Anterior paired fins

  28. Flying fish

  29. Pelvic • Posterior paired fins

  30. Anal • Fin behind the vent or anus

  31. Scales • Can tell how old and what species it is

  32. How old is the fish this scale came from?

  33. Mucous • Escape predators, less water resistance, prevents skin infections

  34. Dar Swim bladder • Controls buoyancy

  35. Lungfish

  36. Puffer fish

  37. Anglerfish

  38. Seahorse

  39. Mr. Mom

  40. Gulper Eel

  41. Moray Eel

  42. Flounder

  43. Barracuda

  44. Cowfish

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