hello! yes you must have missed the controls look at the description in the game page, if you still can't find it here it is:
Controls:
- WASD - forward, backward, left, and right movement of the ship
- 1 - toggle fishing mode
- 2 - toggle steering ship mode
- F - while in fishing mode press F to fish
- Enter/Return key - after you locate a fish quickly press this key to catch the fish!