Wels catfish

Silurus glanis

Blue sketch illustration of Wels catfish
Not Kosher
Has fins but no scales
Fins Yes
Scales No
Description

The wels catfish, also called sheatfish or just wels, is a large species of catfish native to wide areas of central, southern, and eastern Europe, in the basins of the Baltic, Black and Caspian Seas. It has been introduced to several countries in Western Europe, Mediterranean and Asia as a prized sport fish.

Wels catfish are generally valued as food only when younger. The flesh is highly fatty, and big specimens over 15 kg can build up toxic contaminants through bioaccumulation, so smaller fish are the ones worth eating.

Wels catfish live across central, southern, and eastern Europe in the basins of the Baltic, Black, and Caspian seas, with a range now stretching from the UK east to western China. They favor large, warm lakes and deep, slow rivers, holding up in sheltered spots like riverbed holes and sunken trees.

Also known as

  • sheatfish
  • wels

Wels catfish in foreign languages

ScientificSilurus glanis
Hebrew שפמנון אירופי
Arabic قرموط ويلس
Spanish Siluro
Portuguese Peixe-gato-europeu
French silure glane
Italian siluro d'Europa
German Europäischer Wels
Greek Γουλιανός
Russian Обыкновенный сом
Turkish Bayağı yayın balığı
Chinese 歐鯰
Japanese ヨーロッパオオナマズ
Korean 유럽메기
Vietnamese Cá nheo châu Âu
Thai ปลาเวลส์
Warnings & Kosher Issues
  • Has fins but no scales, so it is not kosher.
  • Large wels over about 15 kg can carry toxic contaminants built up through bioaccumulation, so older fish are best avoided as food.