Atlantic bluefin tuna (Thunnus thynnus)

How a Atlantic bluefin tuna sees your lure

Which lure colour a Atlantic bluefin tuna can actually see, at your depth and in your water. 2 cone types, peak 484 nm. Ranked contrast for 54 colours.

Thunnus thynnus

Measured in a close relative

No spectral measurement exists for this species. The cone peaks are taken from Thunnus albacares, its close relative with the same feeding ecology. Treat the hue rankings as indicative rather than exact. Tunas are strongly blue-shifted for the open ocean and have only a narrow separation between their two cone classes, so their colour discrimination is far poorer than their eyesight is sharp.

Spectral sensitivity

Cone peaks λmax Chromophore
Short 426 nm A1
Medium 484 nm A1
Rod 484 nm A1

Rods do the work at dawn, dusk and night — which is when most people fish.

Lure table

Ranked by how much each colour stands out to a Atlantic bluefin tuna in these conditions. — Oceanic I, 78 m.

Colour Contrast Seen from Fish view
1 White
97
47 m Buy now
2 Silver holographic Metallic finish
95
46 m Buy now
3 Sexy shad
94
47 m Buy now
4 Glow Glow finish — not modelled
92
44 m Buy now
5 Bone
91
44 m Buy now
6 Chrome Metallic finish
91
44 m Buy now
7 Blue / white
90
47 m Buy now
8 Pink / white Fluorescent finish
88
47 m Buy now
9 Blueback herring
88
46 m Buy now
10 Chartreuse / white Fluorescent finish
87
47 m Buy now
Stands out least
Green pumpkin
27
16 m
Fluorescent orange
25
15 m
Orange craw
24
15 m
Copper
23
14 m

Contrast quoted at 1.0 m viewing distance. · Light that survives best here: 470 nm

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Beyond the model’s range — Below about 60 m the daylight assumptions in this model stop holding. Read these numbers as indicative only.

Get these colours

The three that came out on top, searched on your own Amazon. The ranking above is worked out from the water and the fish, before any of these links exist.

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Gear this page implies

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What this water lets through

The clearest ocean there is. Deep blue, and blue penetrates furthest by far.

1 m 78 m 234 m 400450500550600650700
K_d is the diffuse attenuation of the light coming down; c is the beam attenuation along the line of sight. Confusing the two is the classic error in this field.

Water types

Oceanic I Oceanic IA Oceanic IB

Target species

Great barracuda Sphyraena barracuda Yellowfin tuna Thunnus albacares Skipjack tuna Katsuwonus pelamis Mahi-mahi Coryphaena hippurus Blue shark Prionace glauca European hake Merluccius merluccius Bonefish Albula vulpes Atlantic sailfish Istiophorus albicans

Questions people actually ask

Can a Atlantic bluefin tuna see colour?

Yes, but only just. It has 2 cone types, peaking at 426 nm, 484 nm, so it has a single dimension of hue where a human has 2.

Where does this data come from?

No measurement exists for this species. The cone peaks come from a congener with the same feeding ecology.

Sources

Open the calculator · Method and sources