Saltwater · Autumn to spring as the water cools; deeper in summer
Broadbanded Rockfish
Sebastes pachycephalus
The dark, thick-headed rockfish of the deeper reefs — 개볼락 (literally 'thick-headed rockfish'). It holds to rough rock and gravel on the east and south coasts and is taken from boats and open-coast rocks. Its firm head goes into the soup pot — a modest but solid member of the rockfish guild.
Seasons · Peak

Identifying features
- Thick-headed profile — head notably broad and robust
- Brownish-black colour with lighter mottling
- Bigger, heavier head than mebaru species
- Darker colour than fire rockfish (that species is red-orange)
- Spiny ridge above the eye visible on larger fish
Habits
- Chunky-headed — the Korean name means 'thick-headed rockfish'
- Holds tight to deeper rocky structure
- Eats crabs and small fish among boulders
- Less of a schooling fish than fire rockfish
- A solid fighter for its size on light tackle
Distribution
Regional coverage expanding
Where to find them
- Reefs off Busan
- Tongyeong deep rocks
- Sokcho east-coast reefs
Where they live
How to catch them
Boat fishing over rough ground Boat
Rig: Bottom rig with shrimp over rough gravel and rock in 50-180 ft from a boat
Bait/lure: Shrimp pieces
Key tip: This fish sits in holes between rocks — fish the rig right against the structure, not out in the open.
Deep rock fishing from shore Rock fishing
Rig: Heavier bottom rig cast from open-coast rocks into deeper water, held in the current
Bait/lure: Sandworm or shrimp
Key tip: A strong leader prevents chafing — the first rush goes straight into the rocks.
Best baits & lures
Baseline setup
- Rod: 7 ft boat or rock rod
- Line: 10-16 lb braid with fluorocarbon leader
- Terminal: Hooks size 4-6 on a bottom rig, 15-30 g sinkers in current
Recommended gear for this species
Rod · Best value
9' 5-weight fly rod outfit
≈ US$180-260
Covers chironomid lakes and small rivers with one setup.
Flies · Budget
Chironomid assortment (30 patterns)
≈ US$25-40
Chironomids are 60% of a lake rainbow's diet in spring.
Picks come from our rule library — never paid placements. Prices are guides; affiliate links may earn us a commission.
Typical size
Common 8-12 in (20-30 cm); large fish about 15 in (38 cm)
On the table
Good — firm white flesh, popular as a soup fish in Korea.
Similar species
Regulations vary by area and can change in-season — always check the official rules for your area before you fish. Regulations guide →
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