Saltwater · Warm months around Kyushu and the Nansei Islands
Silver-stripe Round Herring
Spratelloides gracilis
Kyushu's representative small fish — in Kagoshima it is everyday food and everyday fishing, while most Honshu anglers rarely meet it. Schools shimmer just under the surface of southern piers, and the single mirror-bright silver stripe along the flank is the instant ID key. In Kagoshima it is eaten very fresh as kibinago sashimi with ginger soy.
Seasons · Peak
Identifying features
- Small, slim translucent-silvery body
- One brilliant mirror-like silver stripe along the flank — the key mark
- Belly rounded in cross-section (a 'round herring'), not keeled like most herrings
- Greenish-blue back above the stripe
- No dark shoulder spot and no row of flank spots
Habits
- Holds in dense shimmering schools just under the surface
- Feeds on plankton in inshore southern water
- Very quick to scatter when shadows or predators pass
- A key forage fish for larger predators around Kyushu
- Most abundant in the warm months; thin numbers further north
Distribution
Regional coverage expanding
Where to find them
- Kagoshima Bay piers near Sakurajima
- Nagasaki coast harbour piers
- Amami and Nansei Islands fishing piers
Where they live
How to catch them
Fine sabiki from southern piers Shore
Rig: Ultralight rod with a very fine sabiki rig of tiny hooks, worked just under the surface beside Kagoshima and Nansei piers
Bait/lure: Bare tiny sabiki hooks with a little ami krill chum
Key tip: Keep the rig high in the water — this fish feeds near the surface and rarely drops deep.
Tiny float rig over the school Shore
Rig: Light float rig with one tiny hook under a small float, drifted over the school in calm harbour water
Bait/lure: One ami krill or a pin-head piece of krill
Key tip: Use the finest line and smallest hook you own; standard sabiki hooks are too big for many fish.
Best baits & lures
Baseline setup
- Rod: Ultralight spinning rod 6-7 ft (1.8-2.1 m)
- Line: 3-4 lb mono
- Terminal: Extra-fine sabiki rigs size 2-4 hooks, tiny floats, split shot
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 3-4 in (8-10 cm); large fish to about 4 in (10 cm)
On the table
A Kagoshima specialty — eaten raw when very fresh or lightly fried; extremely perishable, keep iced.
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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