Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Salmoniformes
(Salmons) > Salmonidae
(Salmonids) > Salmoninae
Etymology: Salmo: Latin, salmo, Plinius = salmon (Ref. 45335); rizeensis: Named for the city and homonymous province of Rize, where it is widely distributed and was first observed; an adjective.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Subtropical
Asia: headwaters and upper reaches of the streams and rivers entering the Black Sea along its southeastern and southern coasts in Turkey, between Sakarya drainage in the west and Coruh drainage in the east. Apparently present in Georgia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 11 - ? cm
Max length : 25.0 cm SL male/unsexed; (Ref. 85599)
Morphology | Morphometrics
soft rays: 11;
Vertebrae: 55 - 57. Distinguished from all its congeners in Turkey and adjacent areas by the combination of the following characters: small size, maximum length of about 25 cm SL; body brownish in life; black spots on body, small to medium (usually smaller than pupil), ocellated, restricted to back (missing in mid-dorsal area in front of dorsal fin) and to upper part of flank, few (decreasing in number with size); red spots few, small, ocellated, not very conspicuous, usually organized in three or four irregular longitudinal rows on median and lower part of flank, their appearance, size and number not changing with size; head long (27.8-31.1% SL in males, 25.3-27.4 in females), 1.2-1.4 times body depth at dorsal fin origin in male, distinctly sexually dimorphic; maxilla long (length 9.6-12.1 % SL in males, 8.6-9.8 in females), reaching beyond eye in both adults and juveniles, upper edge straight or slightly convex posteriorly in males; adipose fin slender, upper edge straight or very slightly convex anteriorly (Ref. 85599).
Occurs in small pools of streams with cold, clear and very swift flowing water, with high concentration of dissolved oxygen and substrate consisting of rocks, stones and few pebbles. Spends whole life and spawns in the upper reaches. Does not undertake migration during spawning period. Spawns in September-October. Overwinters into sand or gravel or under rocks and stones in small streams. Seems to stop feeding during winter as all specimens collected in winter had empty stomach (Ref. 85599).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Turan, D., M. Kottelat and S. Engin, 2009. Two new species of trouts, resident and migratory, sympatric in streams of northern Anatolia (Salmoniformes: Salmonidae). Ichthyol. Explor. Freshwat. 20(4):333-364. (Ref. 85599)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00473 - 0.02214), 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. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (38 of 100) .