Originally Posted By: Carcassman



I don't know how WB escapements are done, but I suspect that the number passed above the rack is not used. Meaning that there still may be an issue with the 3-year mean.


The spawning (gravel) survey is THE backbone of enumerating WB escapements. Just understand that some wild spawning takes place BELOW the hatchery weirs and these fish are added back to the total

An estimate of pre-spawn mortalities is also figured into reconstructing the run.
_________________________
"Let every angler who loves to fish think what it would mean to him to find the fish were gone." (Zane Grey)

"If you don't kill them, they will spawn." (Carcassman)


The Keen Eye MD
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