Salmo

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Salmo
Atlantic salmon (Salmo salar)

Atlantic salmon ( Salmo salar )

Systematics
Subclass : Real bony fish (Teleostei)
Overcohort : Clupeocephala
Cohort : Euteleosteomorpha
Order : Salmonid fish (Salmoniformes)
Family : Salmon fish (Salmonidae)
Genre : Salmo
Scientific name
Salmo
Linnaeus , 1758

Salmo is a genus of bony fish fromthe salmon fish family (Salmonidae). The species of the genus occur in Europe, North Africa and West Asia. The genus includes trout ( Salmo trutta ) and Atlantic salmon ( Salmo salar ), which are popular food fish .

features

They are elongated fish with a higher than wide body cross-section. The head is relatively small, the mouth crack extends below the eye and the jaws of the males are usually deformed to a hook during the mating season. The tongue and the handle of the ploughshare are toothed, the latter at least in youth. The flanks have numerous dark points, the caudal fin is monochrome. The anal fin has six to nine and a half branched rays. The scales of the lateral line organ are rounded, overlapping and about the same size as the scales above and below.

Way of life

Fish of the genus Salmo are mostly anadromous migratory fish , i.e. they live in the sea, but rise to rivers to spawn . In addition to the anomalous migratory form ("sea trout"), many species also have forms that remain in fresh water ("brook trout", "lake trout"); The different forms are usually not genetically separated, can mate with each other and individuals can switch from one form to another in some species.

Systematics

The systematics within the genus Salmo is very controversial. While some authors recognize only a few species, other authors recognize numerous local populations as species or subspecies. Exact investigations are made more difficult by the occurrence of different forms within a species as well as by the stocking of waters with non-local fish, so that the original distribution areas can no longer be determined in some cases.

species

The following list of species follows for the European species Maurice Kottelat and Jörg Freyhof and for the non-European species Fishbase :

Europe

North africa

West asia

Individual evidence

  1. ^ Paul Brohmer , Matthias Schaefer: Fauna von Deutschland. A book of identification of our native fauna . 19th, revised edition. Quelle and Meyer, Heidelberg et al. 1994, ISBN 3-494-01225-3 , p. 522 .
  2. a b c d Maurice Kottelat , Jörg Freyhof : Handbook of European Freshwater Fishes . Publications Kottelat, Cornol 2007, ISBN 978-2-8399-0298-4 , pp. 395-396, 401-430 .
  3. ^ Joseph S. Nelson : Fishes of the world . 4th edition. John Wiley & Sons, Hoboken NJ 2006, ISBN 0-471-25031-7 , pp. 203 .
  4. Species of the Salmonidae at FishBase
  5. a b Doadrio, I., Perea, S. & Yahyaoui, A. (2015): Two new species of Atlantic trout (Actinopterygii, Salmonidae) from Morocco. Graellsia, 71 (2): e031.

Web links

Commons : Salmo  - collection of images, videos and audio files