10 20 40 60 cm

mittakaava < 60 cm

Ide and Roach Ide & Chub
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Gösta Sundman: Suomen Kalat (Kansalliskirjasto, The National Library of Finland), Lauri Urho, Jouko Lehmuskallio, Petri Savola (Udenmaan ympäristökeskus)

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Leuciscus idus

  • Other names: Orfe
  • Family: Carps and minnows – Cyprinidae
  • Similar species: asp, chub, dace, roach, rudd, vimba
  • Size: 25–50 cm, 0.5–1.5 kg, seldom over 2 kg, max. 5 kg.
  • Appearance: A sturdily built fish with a rather plump but not especially deep body. Caudal peduncle thick. A fast-growing fish, ide are often larger than many other members of the carp family. Distinguished from the chub by its blunter, more rounded head, concave anal fin, and smaller scales. The number of scales along the lateral line (53-61) distinguishes ide from roach, rudd and dace. The scales of the vimba and asp are almost as small or even smaller, but both these species have a much longer anal fin than the ide (less than 14 rays). The vimba and asp also have a longer, more pointed head.
  • Colouring: Small ide have dark backs and silvery sides. The eye is yellow. Underside fins reddish. Larger fish develop a golden sheen along the sides.
  • Reproduction: Spawns in shallow water soon after the ice has melted. Often ascends rivers and streams, but will also spawn in shallow parts of lakes and sea inlets. Spawning generally lasts 3-4 days and is accompanied by considerable commotion.
  • Food: Benthic invertebrates and vegetation. Larger ide will also take small fish.
  • Distribution and habitat: Found in freshwater throughout Finland as far north as southern Lapland. Inhabits large lakes but also rivers and streams. Common in the sea off the south and southwest coast. In the Gulf of Bothnia ide frequent river estuaries. Smaller ide tend to join shoals of other cyprinids, but larger fish move in smaller groups along what are believed to be regular routes. Prefers clear, warm water, but less tolerant of eutrophication than other cyprinids. As a species that seeks flowing water in which to spawn, ide have suffered from man-made obstructions.
Other species from the same genus
Other species from the same family

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