At least for smaller individuals of SMB, HSB, and LMB in my measurements, the difference between the horizontal gape and vertical gape is the vertical gape can be about 2mm less than the horizontal depending how one stretches open the mouth. I do have some gape information for other species but let's get this bass mouth gape data accumulated first. Hopefully you members can do some fishing and get us some bass length - mouth measurements. Just about every member has one of these three bass species in their pond. Get out there and catch us a bass for our mouth gape study. Let's fill in the gaps of our data set!
Last edited by Bill Cody; 12/14/25 04:44 PM.
