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Grunta View Drop Down
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Joined: 03 Aug 2001
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Posts: 2411 		Post Options Post Options   Quote Grunta Quote  Post ReplyReply Direct Link To This Post Topic: Gamefish weight calculator
    Posted: 17 Jan 2011 at 9:48pm
Have just loaded a full .pdf version of this here. It's based on length x girth squared/800 formula and is a pretty good indication of weight and used as an indicator by many professional skippers and captains. For example a recent marlin weighed 113.3Kg and measured at L: 246  G:114 which is 112kg according to formula.
 
Print one and keep it on the boat and in the gamefishing tackle bag.
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BlackBill View Drop Down
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Posts: 7648 		Post Options Post Options   Quote BlackBill Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2011 at 9:52pm
Immm, good work Grunta !  ! !Like it alot. Based on those measurements I am 89KG . Thought my scales at home were off a Tad .....lol
   Quote ... "To err is human to arrrrrgh is pirate."

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Fishb8 View Drop Down
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Posts: 5739 		Post Options Post Options   Quote Fishb8 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2011 at 9:59pm
Originally posted by WETSPOT

Immm, good work Grunta !  ! !Like it alot. Based on those measurements I am 89KG . Thought my scales at home were off a Tad .....lol
Nah, you'd qualify for 90+!!Wink
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BlackBill View Drop Down
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Posts: 7648 		Post Options Post Options   Quote BlackBill Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2011 at 10:01pm
Oi, watch yourself, or ill have you in your knickers again for a weigh off ! ! ! !
   Quote ... "To err is human to arrrrrgh is pirate."

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TM.... View Drop Down
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Posts: 354 		Post Options Post Options   Quote TM.... Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2011 at 10:18pm

whangarei deep sea anglers clubs grid map has it on there each year also if you need it
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Blue Asparagus View Drop Down
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Posts: 20004 		Post Options Post Options   Quote Blue Asparagus Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2011 at 11:07pm
thanks for that Grunta, I have sent Kerran a few measurements over the last few seasons, he has always been wrong always by a kilo or twoLOL yes he has been helpful alright very good results if thats the one he uses.

live every day like it is your last for tomorrow may never come and for some it don't.
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Kezza View Drop Down
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Posts: 10892 		Post Options Post Options   Quote Kezza Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jan 2011 at 5:56am
this is the calculator I use - it's the only one I've found that you don't have to muck around converting imperial to metric......just use the "BLUE MARLIN" formula and in most cases "AVERAGE FOR CLASS" for Stirpies.....it's been pretty accurate over the years....the 'TUNA" formula has been very good with NPBFT as well.

I've not tried the "SNAPPER" formula but will next time I decide to weigh something to test the math.
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