Overview

Comprehensive Description

Biology

At the sea, it occurs along coast at depths of up to 50 m. Resident part of populations live in streams and uppermost reaches with fast current, cold clear water and stone or gravel bottom. Parrs and resident adults prey on aquatic and terrestrial invertebrates. Anadromous and large lacustrine individuals feed predominantly on fish, but also take large crustaceans. Undertakes migration to hill streams. Usually spawns in the upper reaches of rivers with fast current. Damming hinders both migrating juveniles to reach the sea and returning adults to reach spawning sites. Species survival depends solely on resident populations (Ref. 59043).
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Distribution

Eurasia: Coastal zone of western Caspian Sea, drainages from northern Azerbaijan to Volga and Ural. Terek is the main spawning river. Status of threat: least concern.
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Western Caspian Sea and northern basins.
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Physical Description

Size

Max. size

130 cm SL (male/unsexed; (Ref. 59043))
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Diagnostic Description

Distinguished from the only congener Salmo ezenami in European Caspian basin by the following unique characters: maxilla reaching posterior margin of eye; and gill rakers pointed, tips never club-changed. Diagnosed from Salmo capius, a species restricted to southern Caspian basin, by its unique body depth about 15-20% SL (vs. 21-26); differs further by the combination of having head depth about 59-65% HL (vs. 68-75) and interorbital distance about 30-42% HL (vs. 37-48) (Ref. 59043).
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Ecology

Habitat

Environment

benthopelagic; freshwater; depth range ? - 50 m (Ref. 59043)
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Conservation

Threats

Not Evaluated
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Wikipedia

Salmo ciscaucasicus

Salmo ciscaucasicus is a salmonid fish in the genus Salmo.[2] It was described by Evgenie Alekseevna Dorofeeva in 1967, originally as a subspecies of Salmo trutta.[3] It is a subtropical salmon which is known from Eurasia. It is known to dwell at a maximum depth of 50 metres. Males can reach a maximum standard length of 130 centimetres.[2]

References[edit]

  1. ^ Synonyms of Salmo ciscaucasicus at www.fishbase.org.
  2. ^ a b Salmo ciscaucasicus at www.fishbase.org.
  3. ^ Dorofeeva, E. A., 1967 [ref. 7957] Comparative morphological principles of taxonomy of East European salmons. Voprosy Ikhtiologii v. 7: 3-17.




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