I dont know which way to go with this. The problem is there are too many people that will take advantage of a situation and really stretch the boudaries of sportsmanship. Is it wrong to accidently catch a flathead while walleye fishing.. no, and the statements are correct that these fish will take a bait occasionaly… I am sure its a blast on walleye gear even in ice cold water.
Just because these fish open their mouth to feed doesnt mean they are actively feeding.. but they do have to survive. Spending a minimal amount of energy to grab a steak squirming by seems more like a neccessity of survival, not driven by an instinct to hunt.
I catch lots of channel cats extremely early in the year.. its fun, on heavy walleye gear. The fight is always exactly the same.. they *coast* in a direction after hooked, then as soon as they try to fight(panic), they spin all the way in like a bullhead. Catch that same fish when the water warms up it will try to rip the rod out of your hands and fight for its life.
If a person were to target these flats with live or cut bait(still fishing), it would be more sportsman like to an extent.. at least the snagging principal is out of the equasion for the most part.. but is it really sportsman like to be catching these monsters when they can not put up a fight?
That is the question you need to answer for yourself, and we all have our own opinions on it.. I dont think its very sporting myself.
As for any *jigging* for flatheads.. unless its warm water season and theres a 8″ plastic lure or big live bait on it.. I would recommend to anyone not to do it because of my own opinion.. I think its unsportsman-like to be fishing any tecnique that a considerable amount of fish are snagged.
The above statement is my opinion.
For those that dont feel they go dormant for the most part.. put a few bullheads in your refridgerator, when they start turning on their side and upside down.. take the water temperature. Then let the water warm up and see when they start swimming upright and become active… take the temperature again…
Catfish species have an entirely different activity range in various water temps than other fish. Channel catfish seem to be the most resiliant(sp?). Most of the scaled species of fish can thrive in the cold water, catfish dont.. they just do what they have to do until the water warms to survive.