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TUNA & Big Game TUNA - Offshore Fishing for Tuna and Other Big Game

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Old 11-18-2009, 09:54 AM   #1
ecduzitgood
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I don't remember the formula for calculating weight and was wondering how much the tuna grew I will try and find it and repost unless someone will post it first. That is very cool though.
Ed
Found it:
Girth x girth x length divided by 800= weight
44x44x65/800=157.3lbs.

Last edited by ecduzitgood; 11-18-2009 at 10:06 AM..
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Old 11-18-2009, 11:32 AM   #2
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Quote:
Originally Posted by ecduzitgood View Post
I don't remember the formula for calculating weight and was wondering how much the tuna grew I will try and find it and repost unless someone will post it first. That is very cool though.
Ed
Found it:
Girth x girth x length divided by 800= weight
44x44x65/800=157.3lbs.
That is the general formula used for any fish but there are more rigorous scientific verified versions for the highly regulated tuna industry. This equation is specific for blue fin:

Length-Weight estimate Western Atlantic Blue fin (From the journal Fisheries Sciences):

W (lbs) = 0.00004044 * L (inches*2.54)exp2.837 *1.112 *2.2 (lb/Kg)

The 1.112 is conversion from eviscerated weight to whole weight

For example, 65" = 165.1 cm gives a W = 195 lbs

Given the diversity of the human species, there is no “normal” human genome sequence. We are all mutants.
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Old 11-19-2009, 02:13 PM   #3
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very cool!
Interesting that when the fish was small, you got it on Georges Bank and when it got a little larger it came inside the bay.
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Old 11-19-2009, 10:13 PM   #4
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very cool!
Interesting that when the fish was small, you got it on Georges Bank and when it got a little larger it came inside the bay.
For a fish that has a cruising speed of 30MPH, one of these things could be on Peaked Hill in the morning, and then in Gloucester a few hours later if they wanted to. Just like bass, they just go where the bait is.
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Old 11-27-2009, 12:42 PM   #5
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Good for you,Matt.Not so good for the tuna,I guess.
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Old 11-19-2009, 06:08 PM   #6
ecduzitgood
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Quote:
Originally Posted by PRBuzz View Post
That is the general formula used for any fish but there are more rigorous scientific verified versions for the highly regulated tuna industry. This equation is specific for blue fin:

Length-Weight estimate Western Atlantic Blue fin (From the journal Fisheries Sciences):

W (lbs) = 0.00004044 * L (inches*2.54)exp2.837 *1.112 *2.2 (lb/Kg)

The 1.112 is conversion from eviscerated weight to whole weight

For example, 65" = 165.1 cm gives a W = 195 lbs
I can't quite understand how to read this formula but would like to know how it's done? Can it be put any other way? Does the * mean multiply?
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