PHYSICAL CHARACTERISTICS OF SUB-YEARLING AND YEARLING CHINOOK



    Sub-Yearling Chinook
  • Caudal fin forked, with outer margin usually black.
  • Parr marks large, vertical oblong shapes centered on lateral line and wider than interspaces.
  • Anal fin rays short, wedge shaped, usually not pigmented.
  • Large spots on back.
  • Body wider, eye smaller, nose more sharp than a yearling chinook (football shape).


    Yearling Chinook
  • Caudal fin forked, usually edged in black.
  • Parr marks large, vertical oblong shapes centered on lateral line and wider than interspaces.
  • Anal fin rays short, wedge shaped, usually not pigmented.
  • Large spots on back.
  • Body narrower, eye larger, nose more rounded than sub-yearling chinook.