European perch (Perca fluviatilis)

How a European perch sees your lure

Which lure colour a European perch can actually see, at your depth and in your water. 2 cone types, peak 615 nm. Ranked contrast for 54 colours.

Perca fluviatilis

Measured for this species

Cone peaks are direct measurements for this species. The rest of the model — water optics, contrast, detection distance — is still an estimate, and none of it predicts whether a fish will strike. Its retina uses the A2 (porphyropsin) chromophore, which pushes its long-wavelength sensitivity well to the red of what an A1 retina would give. Many freshwater fish shift the A1/A2 ratio with season and temperature, so real sensitivity drifts through the year.

Spectral sensitivity

Cone peaks λmax Chromophore
Medium 535 nm A2
Long 615 nm A2
Rod 535 nm A2

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 European perch in these conditions. — Clear, 7 m.

Colour Contrast Seen from Fish view
1 White
98
4.5 m Buy now
2 Chartreuse / white Fluorescent finish
97
4.5 m Buy now
3 Chartreuse Fluorescent finish
97
4.5 m Buy now
4 Glow Glow finish — not modelled
96
4.5 m Buy now
5 Bone
94
4.4 m Buy now
6 Silver holographic Metallic finish
93
4.4 m Buy now
7 Sexy shad
91
4.5 m Buy now
8 Yellow
91
4.3 m Buy now
9 Clown
90
4.5 m Buy now
10 Pink / white Fluorescent finish
89
4.5 m Buy now
Stands out least
Black / blue
23
1.8 m
Black
21
1.5 m
Purple
21
1.5 m
Purple / black
17
1.5 m

Contrast quoted at 1.0 m viewing distance. · Light that survives best here: 580 nm

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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

A healthy reservoir on a settled week. A white plate disappears around 4.5 m.

1 m 7 m 21 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

Clear Slight stain Stained

Target species

Largemouth bass Micropterus salmoides Northern pike Esox lucius Muskellunge Esox masquinongy Yellow perch Perca flavescens Barbel Barbus barbus Smallmouth bass Micropterus dolomieu Bluegill Lepomis macrochirus Brown trout Salmo trutta

Questions people actually ask

Can a European perch see colour?

Yes, but only just. It has 2 cone types, peaking at 535 nm, 615 nm, so it has a single dimension of hue where a human has 2.

Where does this data come from?

Direct microspectrophotometry, ERG or behavioural spectral sensitivity for this species.

Sources

Open the calculator · Method and sources