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BNDYBEAR
PostPosted: Apr 12th, '11, 11:08 
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Great effort! I think you may have just confirmed Jades for me next summer!

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mantis
PostPosted: Apr 18th, '11, 17:00 
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Seriously, this cant be healthy.
Seriously, this cant be healthy.
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The last two nights here have got down to 3.5C but no clue what the tank got down to as we were away, but the two small jades I put in the big tank are still alive, and the pumps were running 24/7 while we were away.

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Cornonthecob
PostPosted: Apr 25th, '11, 15:41 
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Good plate size Mantis!

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freoboy
PostPosted: Apr 25th, '11, 16:08 
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mantis wrote:

Harvested 13 and put two very small ones in the big community tank. Dunno if they will survive in there but.
The weights and lengths:
353 24
310 22
293 23
280 22
260 21
238 22
220 21
200 20
183 20
170 19
168 19
160 18
150 18


nice data set, i got this out of it, i hope you dont mind
essentially you can predict the weight of a JP from the length (or visa versa) to a great degree of accuraccy usign the formula in the graph. the R2 value, for the non-mathematicians out there, means that there is a 90% probability that the equation will render a correct wiehgt from length / visa versa (feel free to correct me on this)


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JadePerchLengthWeight.jpg
JadePerchLengthWeight.jpg [ 16.83 KiB | Viewed 973 times ]

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Cornonthecob
PostPosted: Apr 26th, '11, 07:21 
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I'm not smart enough to understand this. It seems to me that there isn't a constant factor with the weight to length due to the width of the fish??

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freoboy
PostPosted: Apr 26th, '11, 08:09 
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No there is a constant factor, the r2 value indicates that there is a very strong relationship between length and weight if fish (r2 of 1 means a perfect relationship) width doesn't come into it

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mantis
PostPosted: Apr 26th, '11, 08:12 
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Seriously, this cant be healthy.
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Nicely done Freoboy,, thanks

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