Here is the full list of all 11 Ace of Seafood trophies - there are 6 bronze, 4 silver and 1 gold.
Occupy a reef
Occupy 10 reefs
Sink a warship
Occupy 'Deserted house'
Occupy ’Bathtub of blood’
Occupy 'Charcoal stove'
Defeat a GiantSquid
Defeat Super Synthesis Fish
Occupy all reefs
Repel fish invaders
Defeat Super Synthesis Fish using sardine only