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#122270 - 10/01/01 12:31 AM Chinook Size To Weight Ratio?
Bobber Down Brad Offline
Alevin

Registered: 09/18/01
Posts: 12
Loc: Portland
Does anyone have a reliable formula for figuring the weight of a chinook? I landed a big buck on the Sandy today. It measured 40.5 inches in length and had a girth of 26.75 inches just in front of the dorsal. I dont have a reliable scale and guessed it's weight at 38 to 40lbs? Can you help?
_________________________
Fish as well as salvation comes by grace. Grace comes by art, and fishing well is an art that does not come easy.

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#122271 - 10/01/01 12:37 AM Re: Chinook Size To Weight Ratio?
AkKings Offline
Three Time Spawner

Registered: 03/13/00
Posts: 1865
Loc: Kelso Wa.
I don't know the specific formula but would agree, it would be in the 36 to 40 lbs. range. nice fish.

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#122272 - 10/01/01 03:07 AM Re: Chinook Size To Weight Ratio?
stlhdr1 Offline
BUCK NASTY!!

Registered: 01/26/00
Posts: 6424
Loc: Vancouver, WA
Using the length x girth x girth / 775 is the formula I've always used at that your fish would have weighed 37.39 lbs. NICE FISH MAN! In years past I've tested the formula and it seems to be within a pound.
Keith
_________________________
It's time to put the red rubber nose away, clown seasons over.


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#122273 - 10/01/01 12:45 PM Re: Chinook Size To Weight Ratio?
Bobber Down Brad Offline
Alevin

Registered: 09/18/01
Posts: 12
Loc: Portland
Thanks for the formula. I appriciate the help
_________________________
Fish as well as salvation comes by grace. Grace comes by art, and fishing well is an art that does not come easy.

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#122274 - 10/01/01 09:44 PM Re: Chinook Size To Weight Ratio?
Kid Sauk Offline
I'm a freak'n CAKE

Registered: 05/17/01
Posts: 966
Loc: Almost on the beach
Try this link for a weight calculation formula. Since the body mass densities differ in salmon and steelhead you have to use two separte formulas. Now don't go quoting me on this since I am just going off of what I've been told by RT. Then again RT seems to think that a lot of things are bigger than they really are :p
http://www.geocities.com/Yosemite/Trails/8482/calc.html

The formula on this page says that your fish was 44.5lbs. NICE!

[ 10-01-2001: Message edited by: Kid Sauk ]
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Got Mingo?

My name is Kiiiiiiiiiiiiiiddddd.....
KID SAUK!!!!!


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#122275 - 10/01/01 10:02 PM Re: Chinook Size To Weight Ratio?
AkKings Offline
Three Time Spawner

Registered: 03/13/00
Posts: 1865
Loc: Kelso Wa.
Kid Sauk, I tried that formula on a fish that weighed 50.3lbs on a certified scale, it had the dimensions 46.5 length and 29.5 girth, that formula said the fish weighed 62 lbs. Think they need to check them figures

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#122276 - 10/01/01 10:11 PM Re: Chinook Size To Weight Ratio?
Cigar Offline
Returning Adult

Registered: 09/01/01
Posts: 369
Loc: Shoreline, Wa.
The correct formula for Kings:

fork lenght x girth squared divided by 800.
It is accurate, I got it from a fisheries
biologest.

Cigar smile smile
_________________________
"Always on a mission to go fishin"

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#122277 - 10/03/01 02:34 PM Re: Chinook Size To Weight Ratio?
Bobber Down Brad Offline
Alevin

Registered: 09/18/01
Posts: 12
Loc: Portland
Thanks 4 the help. Especially the geo cities link. This fish keeps getting bigger by the day. Maybe I should buy a good digital scale wink
_________________________
Fish as well as salvation comes by grace. Grace comes by art, and fishing well is an art that does not come easy.

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