Albock

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Albock
Systematics
Cohort : Euteleosteomorpha
Order : Salmonid fish (Salmoniformes)
Family : Salmon fish (Salmonidae)
Subfamily : Coregoninae
Genre : Coregonus
Type : Albock
Scientific name
Coregonus fatioi
Kottelat , 1997

The albock ( Coregonus fatioi ) is a freshwater fish species from the genus Coregonus within the subfamily Coregoninae . It occurs in Lake Thun and Lake Brienz in Switzerland.

features

The Albock has a standard length of 360 mm. It has 25 to 33 (average 29) gill spines . The eye diameter is 20 to 25 percent of the standard length. The fins are grayish, often with black borders. The length of the pectoral fins is 14 to 18 percent of the standard length.

Way of life

The Albock lives in the middle depths of Lake Thun and Lake Brienz. The spawning season is in December along the shore at depths of 0 to 30 meters. In both Lake Thun and Lake Brienz there are hybrids that spawn at a depth of 70 m. Some of them have a higher body. Allegedly they used to be more diverse and had different spawning times.

Systematics and status

The albock was described by Victor Fatio in 1890 as a subspecies of the Lake Constance flel, Coregonus wartmanni alpinus . However, since the epithet alpinus was already assigned for the goiter Coregonus schinzii alpinus (today's name: Coregonus alpinus ), this is an invalid name according to the International Rules for Zoological Nomenclature and so the species was renamed in 1997 by Maurice Kottelat and Victor Fatio honored in the epithet. The albock is a common fish and is listed by the IUCN in the “ Least Concern” category.

literature

  • Maurice Kottelat: European Freshwater fishes. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non-systematists and comments on nomenclature and conservation . Biologia (Bratislava) Sect. Zool., 52 (Suppl.). 1997.:S. 109
  • Kottelat, M. & Freyhof, J. (2007): Handbook of European Freshwater Fishes . Publications Kottelat, Cornol, Switzerland. ISBN 978-2-8399-0298-4 . P. 357.

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