Fin's Fish Guide
The Wataka (Ischikauia steenackeri) is a freshwater fish of the family Cyprinidae that grows up to 30 cm.
Description
Ischikauia steenackeri, known in Japan as wataka, is a slender cyprinid of the family Cyprinidae endemic to Japan, particularly Lake Biwa and adjacent waters. The species has an elongate, laterally compressed, silvery body with an upward-pointing mouth and reaches about 30 cm. It lives in schools in the open water column of lakes and slow-flowing rivers. As an omnivore it feeds on zooplankton, small invertebrates and plant matter. Owing to habitat loss, water pollution and introduced competitors the species has declined sharply and is assessed as Endangered (EN). It is eaten locally.
Frequently asked questions
How do you recognise the Wataka?
The Wataka has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Endemic Japanese schooling fish with a superior mouth; endangered by habitat loss (EN).
Where does the Wataka live?
The Wataka lives in fresh water and is mostly found around sand or mud bottom. Endemic to fresh water of Japan (including Lake Biwa).
How big does the Wataka get?
The Wataka grows to a maximum of about 30 cm.
Is the Wataka dangerous to humans?
No, the Wataka is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the Wataka edible?
The Wataka is rarely eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Cyprinidae
Want the complete picture on the Wataka?
Point your camera at the fish and Fin names the species in seconds. Free, and the Wataka is one of 12,519 species in the app.