Setting a fishing record now grants some experience rewards. A character will only get these experience rewards once per record period - so you only get daily record experience once per day, and monthly record experience once per month. That means you don't have to try and appraise your fish in ascending weigh order to break your own record multiple times, because you'll only get the reward once. It's not meant as a way to make setting records a sustainable means of leveling. It's just there to add a little encouragement for people trying to set those records, and to drive the competitive spirit.
Also: There are now fishing records in the Lost Ranger Hunting Lounge in Shadgard, and the Pathfinder's Pub in Porto D'esilio. A fish can only be used to set records once, so don't bother trying to use the same fish to set records in all locations.
Fishing record experience rewards
Fishing record experience rewards
<Rias> PUT ON PANTS
<Fellborn> NO
<Fellborn> NO