Trout weight by length

[Duck Butter]

Originally Posted by YellowMouth7

Man in my opinion it need to at least take into acount girth as well.....most calc that I have seen use length and girth

Exactly. When you want to know the weight of something going only by length, the variability is going to be too great. When you throw in another variable such as girth, the calculations will be more precise. Just going by length, if you caught a bass the day before she moved onto a bed, she is going to be her heaviest (same length though) and you catch that same fish the day after she moves off her bed (same length), you may be looking at a difference of 2 lbs in some instances. IF girth was figured in, it would be much more closer to the actual weight, than just length.

In trout, I would think male vs female weight determined by length only would have variability as well, as the females carry eggs at different times of the year. The spawning season may last several months