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