Trout produced by Kim Tisdale Fisheries Biologist


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TROUT

  • Produced by Kim Tisdale

  • Fisheries Biologist

  • Nevada Department of Wildlife

  • 2004


Salmon Family



Salmon Species

  • Pacific Salmon

  • Pink or Humpback

  • Chinook or King

  • Coho or Silver

  • Chum or Dog

  • Sockeye or Red

  • Atlantic Salmon

    • Atlantic Salmon


Salmon

  • Anadromous

  • Spends its life in the ocean but returns to fresh water to spawn

  • Pacific Salmon die shortly after spawning

  • Atlantic Salmon may live to spawn two or more times





Trout and Char



Trout Facts

  • All salmonids are characterized by the presence of an adipose fin

  • All salmonids require clean, cold water in which to live and have a low tolerance to habitat degradation.

  • Primarily freshwater fish, however, many species develop seagoing races.

  • Can you name the anadromous form of the rainbow trout?



True Trout



Char

  • Characteristics:

  • Light spots on dark background

  • Prefer colder water than trout

  • Spawn in the fall

  • Can spawn in a lake environment

  • Nevada’s Chars:

  • Lake Trout

  • Brook Trout

  • Bull Trout



Can You Name the Trout Native to Nevada?

  • Cutthroat Trout

    • Lahontan (Threatened species)
    • Bonneville
    • Yellowstone
  • Bull Trout

    • Threatened species
  • Redband Trout

    • Inland rainbow trout


Lahontan Cutthroat Trout



Cutthroat Trout

  • Once the predominant native trout in lakes and streams across the Great Basin

    • Competition with non-native trout and habitat degradation can be attributed to the decline in the species
  • Recovery activities by NDOW and other agencies are ongoing to reestablish these fish in their historic range

    • Official State Record Cutthroat Trout:
    • 23 pounds 8 ounces (Pyramid Lake, 1977)
    • Unofficial Record: 41 pounds (Pyramid Lake, 1925)


Rainbow Trout



Rainbow Trout

  • The most important trout in North America based on its contribution to sport fisheries

    • Comprise over 90% of the hatchery production from Nevada’s four hatcheries
  • Rainbow are native to waters along the Pacific coast

  • All rainbow trout existing in Nevada are introduced with the exception of the Redband Trout which can be found in 12-mile Creek in the Northwest corner of Nevada

  • State Record: 16 pounds 4 ounces (Lake Mohave, 1971)



Brown Trout



Brown Trout

  • Imported from Europe in the late 1800s and stocked throughout the United States. They were first introduced into the Truckee River in 1895.

  • Often described as the wariest and hardest to catch of all trout

  • While they prefer colder water, brown trout can tolerate temperatures as warm as 75°F and can be found in slower moving water that would be unsuitable to other trout

  • State Record: 27 pounds 5 ounces (Cave Lake, 1984)



Brook Trout



Brook Trout

  • Native to the Eastern U.S.

  • Stocked extensively throughout the U.S. approximately 100 years ago.

  • Usually found inhabiting high mountain lakes and streams due to their preference for cold water (rarely found where temps exceed 65°F.)

  • Popular with anglers – considered the easiest trout to catch and the best tasting

  • State Record: 5 pounds 10 ounces (Bull Run Reservoir, 1980)



Lake Trout (Mackinaw)



Lake Trout (Mackinaw)

  • Native range is the northern portion of North America from Alaska to Labrador and includes the Great Lakes

  • Highly prized as a sport fish due to its large size (World Record – 72 pounds 4 ounces)

  • Generally only found in deep, cold lakes

  • In Nevada, they’re found in Lake Tahoe where they have been reported at depths as deep as 1,400 feet

  • State Record: 37 pounds 6 ounces (Lake Tahoe, 1974)



Bull Trout



Bull Trout

  • Native to the Jarbidge River system north of Elko.

  • The Jarbidge is a tributary to the Snake River in Idaho, however, the populations are separated by 150 miles of unsuitable trout habitat and several impassable dams.

  • Federally listed as Threatened

  • State Record: 4 pounds 6 ounces (Jarbidge River WF, 1985)

  • World Record: 32 pounds 0 ounces (Lake Pend Oreille, Idaho)



Life Cycle of Salmon and Trout





















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