Here is the full list of all 36 MONSTER OF THE DEEP: FINAL FANTASY XV trophies - there are 21 bronze, 10 silver, 4 gold and 1 platinum.
Collected all trophies.
Caught all fish at the Caem Shore.
Caught one of every fish.
Caught all fish at Rachsia Bridge.
Caught all fish at the Vesperpool.
Caught all fish at the Forgotten Pool.
Caught all fish at Crestholm Reservoir.
Caught all fish at Neeglyss Pond.
Caught the bythos.
Reached Hunter Rank 10.
Collected all rods.
Collected all tackle.
Caught 255 fish.
Collected all lures.
Caught the krypse.
Caught the deinosaulma.
Caught the isonade.
Reached Hunter Rank 5.
Collected all reels.
Caught 100 fish.
Caught the vrorogo.
Hooked some garbage.
Lost your first whopper.
Caught 50 fish.
Spent 10,000 gil on tackle.
Completed your first hunt.
Hooked an unidentified species.
Decorated your cabin for the first time.
Participated in your first tournament.
Bought your first tackle.
Caught the lattomaratos.
Caught the ypodochth.
Caught a whopper.
Completed the prologue.
Caught your first fish.
Performed your first excellent cast.