Fishing category exist for a multitude of reasons.
One of the purposes of fishing organizations is educating and connecting anglers.
Now the organization may be nation wide, with individual chapters located in towns and major cities all over the nation.
You can join up with the large organizations like these and attend the local chapters for different events.
Some of these events might be some type of an outdoors expo or possibly a charity luncheon.
Now, not all fishing organizations are dedicated to all species of fish.
You probably thought that you could just go out and join up with any old fishing club and you will be able to do things that help out your favorite species of fish.
This can be true is some cases.
Sometimes a fishing association will cater to any and all species of game fish.
Other times, however, the organizations will be focused on one category of fish.
An example of this is a fishing clubs that caters to only the species of fish that are native to that waterway.
Fishing clubs will get even more narrow in the scope of what species they will support.
Some fishing clubs are species specific.
Say you like to go perch fishing so you want to join a fishing association to meet up with other perch fishermen and learn about how to fish for perch.
Well, if you joined catfish organization, you would be out of luck.
This is because that although some of the existing member may also like to go perch fishing, the main interest of the members is fishing for catfish.