Issue
Ref. 94558 considers the whole native Moroccan Salmo population, including S. pallaryi, as a single species: S. trutta macrostigma.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Subtropical
Africa: once known from Lake Aguelman de Sidi Ali in Morocco (Ref. 55619, 94553), but now extinct (Ref. 50056).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 28.1 cm SL male/unsexed; (Ref. 55619); 21.4 cm SL (female); max. published weight: 111.00 g (Ref. 94730)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 16; Anal spines: 0; Anal soft rays: 12 - 16; Vertebrae: 56 - 59. Diagnosis: Salmo pallaryi differs from all other Salmo species and archaic trouts, except for S. platycephalus, by the overall dusky brown or blackish colour pattern, without contrasting colouration on trunk and fins in adults; it is most easily distinguished from S. platycephalus by the deep and narrow, sometimes pointed snout and large orbit, 25-31% of head length vs. the broad and flat snout and small orbit, 22% of head length, and more numerous scales, usually 18-20 vs. 16, between adipose fin and lateral line; it differs further in having number of anal fin pterygiophores 12-14, other Salmo species and archaic trouts have 10-12 (Ref. 55619).
It feeded on amphipod crustaceans and insects (Ref. 55619). Salmo pallaryi most probably spawned during late summer or early autumn (Ref. 55619). Supposed extinction of S. pallaryi was probably caused by altering trophic condition as a result of introduction of Cyprinus carpio in 1934 to Lake Sidi Ali (Ref. 50056, 55619).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Delling, B. and I. Doadrio, 2005. Systematics of the trouts endemic to Moroccan lakes, with description of a new species (Teleostei: Salmonidae). Ichthyol. Explor. Freshwat. 16(1):49-64. (Ref. 55619)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00488 - 0.02245), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
