There are two sets of controls, that of the PlayStation 3 and that of the Wii. See Ultimate Angler for the game.

PS3 Wii Directions Action
Left Analogue Stick Hold out Wii Remote Cast bait
Circle Nunchuck forwards Reel in fish
Lift Wii Remote backwards Pull fish from water
Right analogue stick Nunchuck D-pad ↑↓← → Rotate Camera
Start + None Pause Menu
L1-R1 Wii Remote D-pad ← → Keep pressing to measure
Square - None Back (return)
Triangle C None Size records appear on screen
O Z None Species seen list appears on screen