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General Classification

General Classification. Soft-rayed fish Dorsal fin is without hard spines Usually have only 1 dorsal fin Adipose fin: small, fatty fin near caudal fin Ex. Trout. General Classification. Spiny-rayed fish Hard, sometimes sharp spines in dorsal fin Ex. Yellow Perch.

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General Classification

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  1. General Classification • Soft-rayed fish • Dorsal fin is without hard spines • Usually have only 1 dorsal fin • Adipose fin: small, fatty fin near caudal fin • Ex. Trout

  2. General Classification • Spiny-rayed fish • Hard, sometimes sharp spines in dorsal fin • Ex. Yellow Perch

  3. Pennsylvania Fish Species • 160 Native to PA • Study of fish biology: • Ichthyology

  4. General Characteristics • Ectothermic: temperature of surroundings affects internal temperature and functions

  5. What ONE factor determines which species can survive in a certain body of water? • TEMPERATURE!!!!!

  6. 3 Main Temperature Groups: • Cold water-< 70 degrees F (TROUT) • Cool water-- > 60 <80 degrees F (Walleye, Muskellunge) • Warm water-- > 80 degrees F (Channel Catfish, Largemouth Bass)

  7. General Characteristics • Water temperature and dissolved oxygen are related • Higher water temperature, Lower DO • Lower water temperature, Higher DO

  8. Channel Catfish

  9. Channel Cat

  10. Northern Hogsucker

  11. Northern Hogsucker

  12. Muskellunge

  13. MUSKY

  14. Brook Trout

  15. Brook Trout

  16. Brown Trout

  17. Brown Trout

  18. Rainbow Trout

  19. Rainbow Trout

  20. Pumpkinseed Sunfish

  21. Pumpkinseed

  22. Bluegill

  23. Bluegill

  24. Jeff Ziegler’s $5,000 Blue Gill 1 out of 38 fish released in Lake Arthur!!!!

  25. Black Crappie

  26. Crappie

  27. Largemouth Bass

  28. Largemouth Bass

  29. Yellow Perch

  30. Yellow Perch

  31. Paddlefish Feeding Video

  32. Paddlefish

  33. Walleye

  34. Walleye

  35. Striped Bass (Temperate Bass Family)

  36. Striped Bass

  37. Carp

  38. Carp

  39. Creek Chub

  40. Creek Chub

  41. Bluntnose Minnow

  42. Bluntnose Minnow

  43. American Eel

  44. American Eel

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