Oxynoemacheilus merga — Details

Caucasus Stone Loach learn more about names for this taxon

Overview

Comprehensive Description

Biology

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Occurs in the upper montane reaches of rivers. Scarce but possibly overlooked (Ref. 59043).
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Distribution

Range Description

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Western Caspian basin in Europe: Kuma, Terek, Sulak, Shura-ozen and Samur drainages. Records from Kuban drainage need confirmation.
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Eurasia: western Caspian basin in Kuma, Terek, Sulak, Shura-ozen and Samur drainages.
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Physical Description

Size

Max. size

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

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Can be diagnosed from its congeners in Europe by the possession of the following unique characters: caudal emarginate; no processus dentiformis; and dorsal fin with 7½ branched rays. Can be further distinguished by its caudal peduncle depth 2.1-2.4 times in its length, 2.0-2.5 times in body depth (Ref. 59043).
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Ecology

Habitat

Habitat and Ecology

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Habitat and Ecology
Habitat:
Upper montane reaches of rivers.

Biology:
No data.

Systems
  • Freshwater
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Environment

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benthopelagic; freshwater
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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2008

Assessor/s
Freyhof, J. & Kottelat, M.

Reviewer/s
Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)

Contributor/s

Justification
Widespread species with no known major widespread threats.
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Population

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Population
Abundant in western Caspian basin.

Population Trend
Unknown
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Threats

Threats

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Major Threats
No major threats known.
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Least Concern (LC)
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Management

Conservation Actions

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Conservation Actions
No information.
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