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