How to catch Plain bonito
Orcynopsis unicolor (Geoffroy Saint-Hilaire, 1817)
About Plain bonito fishing
The plain bonito is a ray finned pelagic fish belonging to the mackerel and tuna family Scombridae. It features a fusiform and strongly compressed body with a naked skin behind its well developed corselet and lacks a swim bladder. Its coloration consists of a dark blue back with pale marbling and silvery lower flanks. Distributed widely across the eastern Atlantic and the Mediterranean Sea, this neritic species typically inhabits coastal waters down to moderate depths over the continental shelf. It often forms small surface schools or associates with seabirds while hunting small pelagic schooling fishes like sardines and anchovies. Spawning occurs during the warm summer months in open pelagic waters.
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Difficulty
Medium
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Average size
90 cm FL
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Market value
Medium
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Habitat
Brackish, Saltwater
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Season
Spring, Summer, Autumn
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Also known as
Bonito
Caudal shape
Deeply forked caudal fin helps distinguish this pelagic hunter.
Curved stripes
Dark curved stripes along the back are key for identification.
Mouth position
Terminal mouth with large upper jaw reaching past the eye.
Plain bonito fishing facts
Characteristics
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Typical size
90 cm FL (max 130 cm FL ) -
Typical weight
2.2 kg (max 13.1 kg ) -
Preferred temperature
12.5–23.5 °C -
Depth
4–30 m -
Body shape
Fusiform / Normal -
Commercial?
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Vulnerability score
59.8
Best hours
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Peak
Dawn
First light
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Active
Morning
After sunrise
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Low
Midday
High sun
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Active
Afternoon
Late day
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Peak
Dusk
Last light
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Low
Night
After dark
When to fish for Plain bonito
How to catch Plain bonito
Tips for catching Plain bonito
Anglers target this fast swimming pelagic predator primarily by trolling small baitfish imitations or metal lures along coastal drop offs and current lines where surface activity is visible. Casting metal jigs or slender plugs to feeding surface schools yields explosive strikes during early morning and late afternoon hours. Using live sardines or anchovies rigged securely on light tackle near the upper water column proves exceptionally effective when fish refuse artificial presentations. Calm sea conditions and warm water temperatures greatly improve catch rates across the summer and early autumn months.
Other names for Plain bonito
Local and alternate names anglers use for Plain bonito.
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Plain bonito
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Bonito
Best equipment to catch Plain bonito
Compare fishing methods for Plain bonito — sized kit for each technique.
Note: Typical fish is 2.2 kg Our algorithm will suggest the best equipment for you based on this weight.
Trolling
Drawing lures or baits behind a moving boat.
85% Effectiveness
Rod
Trolling rod
A trolling rod is built to sit in a holder and pull a lure or bait at speed. Moderate action so the rod, not the reel, plays the fish.
Sized for a typical fish
medium · 1.83 m
- Reel seat
- Casting
- Form factor
- One-piece
- Action
- Moderate
- Grip
- EVA
Reel
Trolling reel
A trolling reel is the dedicated lever-drag fishing reel for pulling lures behind a boat, often in a holder all day.
Sized for a typical fish
20 · 15 kg drag
- Spool
- Revolving
- Mount
- Over
- Drag
- Lever
- Retrieve
- Manual
Line
Braided line
Braided fishing line is the thin, no-stretch main for long casts, jigging, and feeling every tick on the retrieve.
Sized for a typical fish
6 kg · 0.1 mm
- Visibility
- High
- Abrasion
- Low
- Stretch
- None
- Sink rate
- Floats
Leader
Fluorocarbon leader
A fluorocarbon leader is the clear, fast-sinking join between a visible main line and the lure or hook.
Sized for a typical fish
7 kg · 0.3 mm · 90 cm
- Visibility
- Very low
- Abrasion
- High
- Stretch
- Low
- Sink rate
- Fast
Spinning
Casting and retrieving lures with a spinning rod and reel.
75% Effectiveness
Rod
Spinning rod
A spinning rod is a fishing rod built to carry a spinning reel under the blank. You cast lures and light baits with it from shore or a boat.
Sized for a typical fish
medium · 2.13 m
- Reel seat
- Spinning
- Form factor
- Multi-piece
- Action
- Fast
- Grip
- EVA
Reel
Spinning reel
A spinning reel hangs under the fishing rod and is the default reel for casting lures and light baits. Line peels off an open spool with a bail.
Sized for a typical fish
1000 · 3 kg drag · 185 g
- Spool
- Fixed
- Mount
- Under
- Drag
- Front
- Retrieve
- Manual
Line
Braided line
Braided fishing line is the thin, no-stretch main for long casts, jigging, and feeling every tick on the retrieve.
Sized for a typical fish
6 kg · 0.1 mm
- Visibility
- High
- Abrasion
- Low
- Stretch
- None
- Sink rate
- Floats
Leader
Fluorocarbon leader
A fluorocarbon leader is the clear, fast-sinking join between a visible main line and the lure or hook.
Sized for a typical fish
7 kg · 0.3 mm · 90 cm
- Visibility
- Very low
- Abrasion
- High
- Stretch
- Low
- Sink rate
- Fast
Live Baiting
Fishing a live baitfish or live invertebrate as the primary presentation.
70% Effectiveness
Rod
Spinning rod
A spinning rod is a fishing rod built to carry a spinning reel under the blank. You cast lures and light baits with it from shore or a boat.
Sized for a typical fish
medium · 2.13 m
- Reel seat
- Spinning
- Form factor
- Multi-piece
- Action
- Fast
- Grip
- EVA
Reel
Spinning reel
A spinning reel hangs under the fishing rod and is the default reel for casting lures and light baits. Line peels off an open spool with a bail.
Sized for a typical fish
1000 · 3 kg drag · 185 g
- Spool
- Fixed
- Mount
- Under
- Drag
- Front
- Retrieve
- Manual
Line
Monofilament line
Monofilament fishing line is the everyday main line: easy to knot, cheap to replace, and stretchy enough to forgive a hard strike.
Sized for a typical fish
7.5 kg · 0.3 mm
- Visibility
- Medium
- Abrasion
- Medium
- Stretch
- High
- Sink rate
- Slow
Leader
Fluorocarbon leader
A fluorocarbon leader is the clear, fast-sinking join between a visible main line and the lure or hook.
Sized for a typical fish
9 kg · 0.35 mm · 100 cm
- Visibility
- Very low
- Abrasion
- High
- Stretch
- Low
- Sink rate
- Fast
Hook
Circle hook
A circle hook turns in the mouth and usually finds the corner of the jaw. You do not strike hard — you come tight. It includes freshwater.
Sized for a typical fish
2
- Points
- 1
- Offset
- No
- Barbed
- Yes
- Gap
- Standard
Best lures and baits for Plain bonito
Ranked lures and natural baits from every method, best first.
01
Metal jig
- Trolling
- Spinning
A long metal lure for speed-jigging the deep column.
02
Sardine
- Trolling
Elongated silvery baitfish body releases strong scent trails.
03
Anchovy
- Trolling
Elongated fish profile attractive for trolling and drift fishing.
06
Live baitfish
- Live Baiting
Elongated segmented worm body provides natural movement to attract fish.
How Plain bonito migrates — Oceanodromous
Migrates within the sea between spawning, nursery and feeding grounds, and never enters fresh water. Follow its seasonal shifts along the coast and offshore.
1 Eggs
Spawning grounds
Laid on the spawning grounds.
2 Larvae
→ Nursery grounds
Drift with the currents to the nursery grounds.
3 Juveniles
Nursery grounds
Grow up in sheltered nursery waters.
4 Adults
Feeding grounds
Range widely over the feeding grounds.
5 Spawners
→ Spawning grounds
Return to the spawning grounds each season.
It stays in the sea and never runs up into fresh water.
Hover or tap a number to read each stage.
Diet and behavior of Plain bonito
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Diet
Top predator -
Feeds by
Hunts animals -
Hunts
Dawn · Dusk -
Main prey
Baitfish
Prey and predators of Plain bonito
Prey is what Plain bonito eats. Predators are the animals that eat it.
That is how it feeds, and how it is hunted.
Prey
What it eats
Baitfish
Where Plain bonito lives
Pelagic over the continental shelf — coastal open water, not the deep ocean.
4–30 m
Estuary
Where this species lives
Plain bonito photos for identification
Compare these photos with the catalog plate to identify the species.
Where to fish for Plain bonito
Mapped fishing spots where Plain bonito is recorded — open a pin for access and methods.
