Channel Cat Length vs Weight

  • avatarrburns
    Participant
    Wisconsin
    Posts: 285
    #1220401

    Here is a chart I made from 163 Red River Channel Cats I measured a few years ago.

    Profile photo of Ralph WiggumRalph Wiggum
    Participant
    Maple Grove, MN
    Posts: 6,222
    #564487

    Very cool. Thanks for sharing with the rest of us.

    Profile photo of bret_clarkbret_clark
    Participant
    Sparta, WI
    Posts: 9,407
    #564501

    I only dream of channel cats in the twenties
    I guess for practice a guy can tie his line to a 1 ton 4×4 and try reeling it in
    Cool chart and nice cats

    avatarrburns
    Participant
    Wisconsin
    Posts: 285
    #564508

    This might be easier to read.

    Profile photo of king185king185
    Participant
    Kalamazoo, MI
    Posts: 1,117
    #564570

    nice graph… did you run a linear regression to determine the relationship between length and weight? While your data is limited to the particular length range you used, the slope may still be applicable above or below that range, at least for estimation purposes.

    Profile photo of Ralph WiggumRalph Wiggum
    Participant
    Maple Grove, MN
    Posts: 6,222
    #564572

    Quote:


    nice graph… did you run a linear regression to determine the relationship between length and weight? While your data is limited to the particular length range you used, the slope may still be applicable above or below that range, at least for estimation purposes.


    That’d be cool. It does look fairly linear.

    avatarrburns
    Participant
    Wisconsin
    Posts: 285
    #564614

    hows this?

    Profile photo of WhiskerkevWhiskerkev
    Participant
    Madison
    Posts: 3,833
    #564639

    Very cool. I thought the channels up there were bigger. 27 is your biggest?

    avatarrburns
    Participant
    Wisconsin
    Posts: 285
    #564655

    This chart was only for one week in June of 2001, I think.

    26 pounds 2 ounces was the biggest for that trip.

    My biggest ever was 28 pounds 2 ounces.

    The biggest in our boat ever was 29 pounds 5 ounces.

    Those are very accurate weights, no net, no fudging. All digital scales.

    26 pounds is a big channel….30s are very rare. I’ve never seen one in the thousands that have been in the boat.

    I think a lot of people round their 25 and 26 pounders up to 30 when they tell the stories.

    Profile photo of mplspugmplspug
    Participant
    Lake Mary, Florida Y'all
    Posts: 17,835
    #564660

    That’s a lot of fish for one week! That must have been fun. I watched a show a year or 2 ago on Red River cats and they were catching 20#s, but said you could expect to wait an hour or 2 between fish!

    Profile photo of audempaudemp
    Participant
    Eagan, MN
    Posts: 719
    #564663

    Heck Id wait for a few days for one that big!

    Profile photo of WhiskerkevWhiskerkev
    Participant
    Madison
    Posts: 3,833
    #564666

    Still an awesome string of channels. I have heard rumors of the fishery up there being very very good. I got on a pattern down here on the Madison Chain. I get one over 20 each time I go Last year 22 was the biggest. I lost a few that seemed bigger. I am going to see about doing one of these graphs this year. My fish are all digital scale weighed and released. Yours are skinnier being river fish. The lake ones get shoulders like lake walleyes do not fighting the current.

    Profile photo of king185king185
    Participant
    Kalamazoo, MI
    Posts: 1,117
    #564689

    Quote:


    hows this?


    nice… would be better with the equation shown on the graph… (I think if you double-click on the regression line, a window pops up and a there’s a checkbox to ‘display equation’ or something like that…)

    Profile photo of mplspugmplspug
    Participant
    Lake Mary, Florida Y'all
    Posts: 17,835
    #564712

    What the? You mean I have to start bringing a calculator with me when I go fishing?

    Profile photo of bret_clarkbret_clark
    Participant
    Sparta, WI
    Posts: 9,407
    #564737

    Slide rule and Abacas should be fine

    avatarrburns
    Participant
    Wisconsin
    Posts: 285
    #564744

    Got it:

    Weight = 1.2975(Length) – 26.329

    Profile photo of dtrodtro
    Participant
    Jordan
    Posts: 1,510
    #564751

    very interesting, thanks.

    I would like to see a chart that included girths. It’s neat to see that a 30″ fish can weigh anywhere from 10-20lbs roughly.

    Profile photo of king185king185
    Participant
    Kalamazoo, MI
    Posts: 1,117
    #565044

    Quote:


    very interesting, thanks.

    I would like to see a chart that included girths. It’s neat to see that a 30″ fish can weigh anywhere from 10-20lbs roughly.


    Interesting proposal… RB: if you have girth data, you could add that to a “z” axis and do a 3-dimensional regression. Thus, you would generate a weight estimate based on both length and girth!

    Or… you could just bring a scale with you fishing and measure the weight

    avatarrburns
    Participant
    Wisconsin
    Posts: 285
    #565053

    I don’t have any girth data.

    We tried not to mess around the the fish too much before getting them back in the water.

    We don’t even weigh them anymore unless they are over 25 pounds.

    Profile photo of channelcatbenchannelcatben
    Participant
    South Minneapolis
    Posts: 363
    #565067

    I’m sure there are enough of us with scales and tape measures that we could put together a bunch of data over the season, and get a fairly accurate chart put together. Provided we actually catch some fish, that is…

    Ben

    Profile photo of king185king185
    Participant
    Kalamazoo, MI
    Posts: 1,117
    #565087

    Quote:


    I’m sure there are enough of us with scales and tape measures that we could put together a bunch of data over the season, and get a fairly accurate chart put together. Provided we actually catch some fish, that is…

    Ben


    Sounds like fun, especially for a ‘numbers geek’ like me… This season, I think I’ll measure lenght, girth, and weight on the fish I catch, regardless of species and log that by date and body of water. Just a few more columns of data to put into my log/spreadsheet (I already track weather patterns, barometric pressure, and lunar phase along with fish caught!).

    I know, I already admitted to being a numbers geek…

    Profile photo of channelcatbenchannelcatben
    Participant
    South Minneapolis
    Posts: 363
    #565094

    I’ll do the same. The more samples we take, the better the accuracy. So excel might actually have an application in fishing? That’s cool and scary at the same time.

    Ben

    avatarrburns
    Participant
    Wisconsin
    Posts: 285
    #565668

    Quote:


    Very cool. I thought the channels up there were bigger. 27 is your biggest?


    I just searched my computer and I found weights on 421 consecutive channels from below the Lockport dam.

    The average for the 421 fish was 17.5 pounds.

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