Loot

Loot
Amethyst Ore Glacier Passage10%Materials to level 6: 100
Aquamarine Glacier Passage10%Materials to level 5: 80
Blue Seashell Blue Hole Entrance, Blue Hole Depths, Glacier Passage25%Highest Rarity to level 3: 15
Brown Seashell Blue Hole Depths, Glacier Passage25%Highest Rarity to level 5: 105
Copper Ore Blue Hole Entrance, Blue Hole Depths, Glacier Passage10%Materials to level 2: 20
Coral Orb Blue Hole Depths, Glacier Passage10%Materials to level 4: 60
Cuttlefish Skin Fragment Blue Hole Entrance, Blue Hole Depths, Glacier Passage10%Max Depth to level 2: 50
Devil Scorpion Fish Thorn Blue Hole Entrance, Blue Hole Depths, Glacier Passage33%Attack to level 2: 30
Frilled Shark Teeth Blue Hole Depths, Glacier Passage33%Attack to level 5: 120
Frogment Blue Hole Depths, Glacier Passage20%Dive Time to level 5: 40
Iron Ore Blue Hole Depths, Glacier Passage10%Materials to level 3: 40
Lava Disc Glacier Passage20%Dive Time to level 8: 100
Narwhal Tusk Glacier Passage33%Attack to level 6: 150
Pelican Eel Skin Blue Hole Depths, Glacier Passage10%Max Depth to level 3: 100
Pink Seashell Blue Hole Depths, Glacier Passage25%Highest Rarity to level 4: 45
Red Clam Seashell Glacier Passage25%Highest Rarity to level 6: 200
Red Lionfish Thorn Blue Hole Entrance, Blue Hole Depths, Glacier Passage33%Attack to level 3: 60
Scrap Iron Blue Hole Entrance, Blue Hole Depths, Glacier Passage20%Dive Time to level 3: 20
Whitetip Reefshark Tooth Blue Hole Depths, Glacier Passage33%Attack to level 4: 90

Dave only drops loot you still need for an upgrade, and only at the depths where it lives. Each time he defeats a fish he can drop one item at most: the loot you still need rolls its chances in turn, and the first that hits is the one he brings. The chance listed for each item is for a Materials part at its first level. Upgrading Materials multiplies it, up to 3.5×.