FISCHWIKIAn independent field guideFresh & salt water
Est. 2026
The ichthyology collectionVolume 01 / 20 species

A field guide
to fish.

For the familiar fish.
And the wonderfully unfamiliar.

An illustrated collection of freshwater and marine life. A little natural history, one species at a time.

Open the collection ↗
Hand-coloured historical plate of a northern pike by Marcus Elieser Bloch
Fig. 01 — Northern pike
Esox lucius
M. E. Bloch
Pl. XXXII · Public domain
Look closely. There’s more down here.Scroll to explore ↓
01 / From the collection

A few to get
acquainted with.

All 20 species ↗
Interlude / 001

Stay a
little longer.

There’s a whole world
just under the surface.

Explore the sea ↗
A little life below the surface
02 / Follow the water

Find your waters.

Some fish belong to more than one world.
Our habitat categories overlap, too.

01

Rivers & lakes

From gravel streams to the quiet of a reed bed.

10 species↗
02

Seas & oceans

Life on the reef, along the coast and out in the blue.

14 species↗
03

Between the two

Estuaries and bays, where fresh water meets the sea.

13 species↗
A note on the pictures

Old plates.
New perspectives.

Most of these fish were drawn more than two centuries ago. Bloch’s hand-coloured engravings sit alongside modern species notes — a reminder that looking closely never gets old.

About the archive ↗
An eighteenth-century carp engraving from Bloch’s Ichthyologie