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 Neeglyss Pond.
Caught all fish at Rachsia Bridge.
Caught one of every fish.
Caught all fish at the Caem Shore.
Caught all fish at Crestholm Reservoir.
Caught all fish at the Vesperpool.
Caught all fish at the Forgotten Pool.
Reached Hunter Rank 10.
Collected all lures.
Collected all tackle.
Collected all rods.
Caught 255 fish.
Reached Hunter Rank 5.
Collected all reels.
Caught 100 fish.
Completed your first hunt.
Spent 10,000 gil on tackle.
Caught 50 fish.
Caught the bythos.
Caught the krypse.
Caught the isonade.
Hooked an unidentified species.
Bought your first tackle.
Caught the vrorogo.
Hooked some garbage.
Caught the deinosaulma.
Lost your first whopper.
Caught a whopper.
Participated in your first tournament.
Decorated your cabin for the first time.
Caught the lattomaratos.
Caught the ypodochth.
Completed the prologue.
Performed your first excellent cast.
Caught your first fish.