Salmo akairos — Details

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Overview

Comprehensive Description

Biology

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Feeds on Cyclops, terrestrial arthropods, filamentous algae and diatoms (Ref. 55619).
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Distribution

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Lake Ifni, Morocco.
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Africa: Lake Ifni in Morocco.
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Range Description

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Salmo akairos is endemic to Lake Ifni (31°2'N, 7°53'W, altitude: 2,300m) in Morocco.
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Physical Description

Morphology

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Dorsal soft rays (total): 16; Analsoft rays: 12 - 13; Vertebrae: 56 - 58
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Size

Max. size

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18.0 cm SL (male/unsexed; (Ref. 55619)); 15.04 cm SL (female)
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Diagnostic Description

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Distinguished from all pother Salmo species and archaic trouts by the combination of contrasting black and white leading edges on dorsal and anal fins and the absence of dark spots on the sides of the body. High number of dorsal fin pterygiophores (14-16) and high number of gill rakers (19-23) (Ref. 55619).
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Ecology

Habitat

Environment

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benthopelagic; freshwater
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Habitat and Ecology

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Habitat and Ecology
It feeds on cyclops, terrestrial arthropods and filamentous algae and diatoms. It spawns in the lake. It reaches a length no larger than 20 cm.

Systems
  • Freshwater
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Trophic Strategy

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Feeds on Cyclops, terrestrial arthropods, filamentous algae and diatoms (Ref. 55619).
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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category
VU
Vulnerable

Red List Criteria
D2

Version
3.1

Year Assessed
2010

Assessor/s
Azeroual, A.

Reviewer/s
Kraïem, M. & Smith, K.

Contributor/s

Justification
Salmo akairos is endemic to Lake Ifni (less than 1 km2) in Morocco. The species spawns in the lake as it lacks suitable tributaries. The lake is 2,300 m high and has no permanent human habitation in its catchment, although the sparse vegetation is grazed by sheep and goats in the summer. The lake supplies water for extensive terrace agriculture around a village below the lake. There is no available evidence to suggest any current threats to the species, but there is a potential threat from the agriculture (water abstraction), introduced trout and sport fishing (Kraïem, M. pers .comm. 2007).
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Population

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Population
No information available.

Population Trend
Unknown
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Threats

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Vulnerable (VU) (D2)
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Major Threats
The species does not have any current threats. However it is potentially threatened by water abstraction as the lake currently supplies water for irrigation purposes to a nearby village and introduced alien species (rainbow trout).
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Management

Conservation Actions

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Conservation Actions
No information available.
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