Its failure to dry before hitting the winder resulted in blotching.
When B > 1, wet winding will occur and thus result in blotching. From (30), it can be seen that blotching is governed, respectively, by a density ratio, a group comparing humidity to volatility, an aspect ratio, and a dimensionless line speed.
Equation (31) captures the nonlinear coupling of the metering and the drying and is recommended for troubleshooting blotching by upstream adjustment.
Blotchability is a new dimensionless group that governs when blotching will occur.
Ralph Manns, a fishery scientist and long-time contributor to In-Fisherman, believes handling through catch-and-release can cause blotching
, based on observations at a local pond and Lake Fork, Texas.