10 20 40 60 cm

mittakaava < 40 cm

         
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Gösta Sundman: Suomen Kalat (Kansalliskirjasto, The National Library of Finland), Lauri Urho, Petri Savola (Uudenmaan ympäristökekskus)

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Tench

Tinca tinca

  • Family: Carps and minnows – Cyprinidae
  • Similar species: carp
  • Size: 30-40 cm, 0.5-1.5 kg.
  • Appearance: The distinctive shape and colour of the tench make it difficult to confuse with any other fish. This thick-set fish has an overall rounded appearance, including the fins. Caudal fin almost unforked, tips rounded. Like the carp, it has a single pair of barbels at the mouth, but its dorsal fin is much shorter and the scales so small (95-120 along the lateral line) as to give an almost scaleless appearance. Eyes very small. Pelvic fins longer in male than female.
  • Colouring: Overall dark, colour fading after death. Back and sides olive green with shades of bronze, belly yellow-orange. Eyes red and fins dark brown.
  • Reproduction: Spawns on the bottom among reeds once the water temperature has reached 18-20 degrees, i.e. usually in June-July.
  • Food: Benthic invertebrates.
  • Distribution and habitat: Occurs naturally in Finland, and numbers have been boosted by stocking. Tench do not thrive above latitude 62 north and are thus restricted to nutrient-rich lakes in southern Finland and sea inlets of the Gulf of Finland. Tench are typical bottom fish, seldom moving into surface water.
Other species from the same family

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