Flathead Bull Trout Population Survey - ABC FOX MONTANA NEWS, WEATHER, SPORTS - KTMF/KWYB

Flathead Bull Trout Population Survey

Posted: Updated:
MISSOULA -

Recent survey results show encouraging numbers for the Flathead's bull trout population.

FWP biologist conducted spawning surveys in eight North and Middle Fork Flathead River tributaries. They counted about 500 redds, or spawning nests, this year indicating a stable bull trout population.

In the past 15 years, which is about three generations of bull trout, surveys average about 434 redds. This year's estimate of 500 redds is 66 percent above the minimum secure level of 300 redds calculated for the Flathead Lake bull trout population under the Flathead Lake and River Fisheries Co-Management Plan. Based on the average number of eggs per female, this translates to several million eggs deposited in the gravels of North and Middle Fork Flathead tributaries.

Mature bull trout migrate upstream from Flathead Lake in the summer, spawn in September, and then return to Flathead Lake in October after spawning.  The young fish hatch and then live in the tributaries from 1-3 years before migrating downstream to Flathead Lake to grow to adults and complete the life cycle. Biologists estimate that about half the adult bull trout in Flathead Lake spawn each year.

  • NationalMore>>

  • Family feud sparks revolt at grocery store chain

    Family feud sparks revolt at grocery store chain

    Friday, July 25 2014 9:05 PM EDT2014-07-26 01:05:50 GMT
    It's been called a David vs. Goliath story, a "Tale of Two Arthurs" and even the "ultimate Greek tragedy," but the characters in this drama are not Biblical or literary figures.
    It's been called a David vs. Goliath story, a "Tale of Two Arthurs" and even the "ultimate Greek tragedy," but the characters in this drama are not Biblical or literary figures. They're grocery store owners.
  • Arizona's McCain: Execution was torture

    Arizona's McCain: Execution was torture

    Friday, July 25 2014 9:05 PM EDT2014-07-26 01:05:47 GMT
    U.S. District Judge Neil V. Wake was attending a ceremony for a judicial colleague when he received an urgent - and unusual - request: Lawyers for a condemned inmate wanted him to stop an execution that didn't...
    U.S. Sen. John McCain says the execution of an Arizona inmate that lasted two hours was torture.
  • Carjacked SUV hits crowd, killing 3 young siblings

    Carjacked SUV hits crowd, killing 3 young siblings

    Friday, July 25 2014 8:44 PM EDT2014-07-26 00:44:45 GMT
    Two men forced a woman into the backseat of her vehicle at gunpoint, drove off but later lost control and plowed into a group of people on a corner near a fruit stand in Philadelphia on Friday, police said. Two...
    Two men carjacked a woman at gunpoint but soon sped out of control, killing three children Friday as they plowed into a group selling fruit to raise money for their church, Philadelphia police said.
  • Most Popular

  • Most Popular StoriesMost Popular StoriesMore>>

  • Search Crews Use All Resources As They Try To Recover Kayaker

    Search Crews Use All Resources As They Try To Recover Kayaker

    Thursday, July 24 2014 8:54 PM EDT2014-07-25 00:54:32 GMT
    Thursday was day five of the search for a Polson doctor who disappeared while kayaking on Flathead Lake.
    Thursday was day five of the search for a Polson doctor who disappeared while kayaking on Flathead Lake.
  • ABC All-Star: Bailey Deyle

    ABC All-Star: Bailey Deyle

    Thursday, July 24 2014 8:34 PM EDT2014-07-25 00:34:26 GMT
    Sentinel senior to be Bailey Deyle and her Montana Avalanche softball team just won the state ASA softball tournament, and have been competing across the country this entire summer. Although it's not just her success on the field that makes her this week's ABC All-Star.
    Sentinel senior to be Bailey Deyle and her Montana Avalanche softball team just won the state ASA softball tournament, and have been competing across the country this entire summer. Although it's not just her success on the field that makes her this week's ABC All-Star.
  • Bozeman Scuba Divers Explore Yellowstone Lake

    Bozeman Scuba Divers Explore Yellowstone Lake

    Tuesday, July 22 2014 11:38 PM EDT2014-07-23 03:38:22 GMT
    Montana is known for its outdoor recreational and adventure sports.There's everything from whitewater kayaking to extreme mountain biking.
    Montana is known for its outdoor recreational and adventure sports.There's everything from whitewater kayaking to extreme mountain biking.
  • The Catalan Secret Camp Comes to Missoula

    The Catalan Secret Camp Comes to Missoula

    Thursday, July 24 2014 12:22 AM EDT2014-07-24 04:22:53 GMT
    The relationship between Big Sky high school soccer and coaches from Barcelona goes back to 2011, when the Eagles boys team visited Spain.
    The relationship between Big Sky high school soccer and coaches from Barcelona goes back to 2011, when the Eagles boys team visited Spain.
  • Spokane Crew Cleans Up Chemical Spill Near DeBorgia

    Spokane Crew Cleans Up Chemical Spill Near DeBorgia

    Thursday, July 24 2014 11:53 PM EDT2014-07-25 03:53:01 GMT
    Mineral county officials call in a team from Spokane to clean up a hazardous chemical spill on I-90.
    Mineral county officials call in a team from Spokane to clean up a hazardous chemical spill on I-90.
  • UPDATE: Search and Rescue Efforts Continue for Flathead Kayaker

    UPDATE: Search and Rescue Efforts Continue for Flathead Kayaker

    Tuesday, July 22 2014 1:04 PM EDT2014-07-22 17:04:28 GMT
    The search for a missing kayaker will continue Monday on Flathead Lake, it's surrounding shores and the Flathead River, after he's been missing for more than 24 hours.
    The search for a missing kayaker will continue Monday on Flathead Lake, it's surrounding shores and the Flathead River, after he's been missing for more than 24 hours.
  • Many Frustrated By Stalled Cobell Settlements

    Many Frustrated By Stalled Cobell Settlements

    Wednesday, July 16 2014 9:30 PM EDT2014-07-17 01:30:30 GMT
    In Congress Wednesday, the group in charge of doling out Cobell settlement claims says it's waiting on setting exact amounts and a judge's okay before making the rest of the payments.
    In Congress Wednesday, the group in charge of doling out Cobell settlement claims says it's waiting on setting exact amounts and a judge's okay before making the rest of the payments.
  • Silver Bow Creek Has Life Again

    Silver Bow Creek Has Life Again

    Tuesday, July 22 2014 8:52 PM EDT2014-07-23 00:52:34 GMT
    For more than 100 years Silver Bow Creek was void of any life. Not only are there signs of life again but the native wildlife are thriving.
    For more than 100 years Silver Bow Creek was void of any life. Not only are there signs of life again but the native wildlife are thriving.
Powered by WorldNow

Features

  • More Features
  • Powered by WorldNow
    All content © Copyright 2000 - 2014 WorldNow and Cowles Montana Media. All Rights Reserved. For more information on this site, please read our Privacy Policy and Terms of Service.