At this point you have a chance to actually catch the fish, have your line snap, or have the fish get away. At lower fishing skills you may lose these fish more often than at higher skill levels. These fish are slightly heavier than a fish of the same quality level. You can use them in meals, but they will not make the meal rare nor will butchering them give rare fillets. They may be sacrificed at an altar for a refresh like all other rares.
During fishing, event window text uses the following different adjectives to describe the fish, which directly relates relate to its quality:
*small - up to 15 ql
*large - 65-74 ql