Fish Weight Calculation

This is a Javascript implementation of the fish weight estimation algorithm posted to the Flyfish listserver in July of 1994 (see the listserver archives with this pre-formed query...

This "spreadsheet" allows entry of up to three rows of data. Each is calculated separately, allowing for comparison of the results. Why three rows? It fits on my screen well!

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Is this accurate? To paraphrase a Star Trek episode of many years ago, "Dammit Jim, I'm a computer scientist, not a biologist". The algorithm used is W=(L * (G^2))/R, where:

W = Weight in decimal pounds
L = Length in inches
G = Girth in inches (default is .58 * L)
R = 800 for trout/bass, 900 for pike/musky

trout picture

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Last updated 12-January-2003