When dried in a Drying Frame after 2 days it will turn into Red-Finned Mullet.
Each fish caught has a different weight depending on how long he has lived.
The weight of a fish determines the amount of value given when you compost it or feed it to turkeys etc.
The weight of the fish determines how many fish filets you get.
The weight of the fish determines the gluttony values given when dried.
Red-Finned Mullet can be caught on deep sea water using cricket moth bait (100% sure by Lordareon)