I don't think dads live in salt or brackish water. I've gotten decent hauls of them from the nehalem just above Mohler Sand and Gravel, and on up the river.
A fun way to do it if you have kids (or are a kid :wink: ) is to chuck a couple traps and then wade around in the shallows "hunting" and grabbing with a pair of bbq tongs or by hand, while waiting to pull the traps. Better in the summer of course.
Try searching the archives for more info.