Fishing
You can catch Small, Medium, and Large fish in BTN. You catch them with a fishing rod you get from Greg the Old Fisherman, who can be found at the dock early in the morning and late at night (The best fishing hours. He know his stuff) Small Fish are pretty much worthless, and are best used as bait. To use Bait, simply throw a small fish in the water where you're going to be fishing. These increases your chances of catching larger fish. Bait is only good for one day.
You can also catch Legendary Fish. For each Legendary Fish you catch, instead of keeping the fish you get a Fish Print you can view later.
Catfish
Time: Winter
Mine in the Winter Mine till you get to the level with a tunnel leading out to a pond. Fish till you catch it.
Squid
Go to the Dock at the Beach and throw in some bait. Just fish till you catch it.
Sea Bream
Time: Spring, Summer, Autumn
Must have shipped at least 200 fish. Fish for it in the Ocean
Angler
Season: Winter; 11:00 pm to 8:00 am
Fish in Ocean
Carp
Season: Spring, Summer, Autumn
Must have caught at least five other fish. Fish at Mother's Lake
Char
Season: Summer
Must have Sushi, Sashimi, and Grilled Fish recipe. Fish from the river at your farm or at the place where the river leaves Goddess Lake at the Hot Springs (they're the same river). By the way, I'd be interested to know if it works at Yodel or Poultry too since it's the same river. Email Me