Most of the serious fishing groups use cell phones. The regular chatter that you hear can be understood if you put 2 and 2 together - meaning that the longer you listen (day after day) you will find groups that will use the radio on a regular basis to discuss what they have going on. For the most part, there are 2 - 3 groups talking back and forth each day. Once you define their pattern, you will begin to sort things out better.

CB's are still used by a lot of charter captains because of the "noise" on the marine radio. Some of them also have difference frequency chips that you cannot tune into on their marine radios. I have such a setup. I am usually not on the radio very much. If anything, I get cell phone calls from the other captains that I know.