Bivalves
Yesso scallop
Mizuhopecten yessoensis
Shell height up to 20 cm; farmed adults mostly 10–12 cm
Farrer's scallop
Azumapecten farreri
Shell height 6–8 cm
Korean mussel
Mytilus unguiculatus
Shell length up to 14 cm
Horse mussel
Modiolus modiolus
Large individuals reach 15 cm
Broughton's ark
Anadara broughtonii
Shell length up to 10 cm
Half-crenate ark
Anadara kagoshimensis
Shell length about 4–5 cm
Gastropods
Cephalopods
Crustaceans
Fleshy prawn
Penaeus chinensis
Females up to 20 cm; males smaller
Kuruma prawn
Penaeus japonicus
Body length up to 20 cm
Gazami crab
Portunus trituberculatus
Carapace width up to 15–20 cm
Asian paddle crab
Charybdis japonica
Carapace width about 8–9 cm
Japanese mantis shrimp
Oratosquilla oratoria
Body length about 15 cm
Echinoderms
Fishes
Seaweeds
Observations here