Jason Halfen Is On The Newsstand Today

  • Jami Ritter
    Hastings, MN
    Posts: 3067
    October 12, 2007 at 2:19 pm #615916

    Good job Jason! Good read!

    Jami

    Mark Steffes
    Farmington, MN
    Posts: 1376
    October 12, 2007 at 3:10 pm #615945

    Great read, Great job Jason.

    bigpike
    Posts: 6259
    October 12, 2007 at 3:18 pm #615949

    TV! Newspaper! We have a local fishing rock star in the making! Way to go Jason…….

    jon_jordan
    St. Paul, Mn
    Posts: 10908
    October 12, 2007 at 3:27 pm #615952

    Good job, Professor….

    -J.

    adloos
    Winona, MN
    Posts: 344
    October 12, 2007 at 5:00 pm #615984

    Nice Job Jason!

    Jack Naylor
    Apple Valley, MN
    Posts: 5668
    October 12, 2007 at 5:45 pm #615997

    Congrats Jason,
    Jack

    jhalfen
    Posts: 4179
    October 12, 2007 at 6:38 pm #616017

    Thanks everyone for the comments.

    If you have a chance, grab an actual paper copy of the paper. There are a bunch of pics in there, and they’re MUCH better than the small one that is included in the electronic version of the story.

    kruger
    Metro,mn
    Posts: 593
    October 12, 2007 at 7:17 pm #616039

    Very nice

    Jason Sullivan
    Chippewa Falls, WI
    Posts: 1383
    October 14, 2007 at 1:26 pm #616347

    Quote:

    He has a theory that chemicals given off by a stressed fish, such as one that recently has been caught, can warn other fish in the area.

    Jason, I would like to hear more about this.

    Sully

    jhalfen
    Posts: 4179
    October 14, 2007 at 1:52 pm #616350

    Quote:

    Quote:

    He has a theory that chemicals given off by a stressed fish, such as one that recently has been caught, can warn other fish in the area.

    Jason, I would like to hear more about this.

    Sully

    Time to put my scientist cap on….

    There is a fairly extensive scientific literature that describes the production of pheromones in fish, and the use of pheromones as a means of communication between members of the same species.

    In 1941, Karl von Fritsch first described the use of “Schreckstoff” (fright stuff), which are injury-released or chemical-alarm pheromones. He observed that injured fish give off of an alarm signal to other fish, causing them to flee, apparently in the form of a hormone-like chemical released from their skin and open wounds. There is an excellent discussion of this topic by Bosio (Colorado State Univ) on this topic: Bosio paper.

    mpearson
    Chippewa Falls, WI
    Posts: 4338
    October 16, 2007 at 4:20 pm #617040

    That is awesome Jason.

    absolute2ks
    Chippewa Falls, WI
    Posts: 674
    October 16, 2007 at 5:30 pm #617060

    well a body hook would be one thing but if you only hooked the lip.

    according to some it does not hurt a fish to hook it in the lip.

    so in saying this would they still give off the chemical-alarm pheromones?

    chew on that

    2K’S

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