Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Cypriniformes
(Carps) > Nemacheilidae
Etymology: arsaniasus: Named for the Arsanias, the antique name of the Murat River; an adjective..
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Subtropical
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.7 cm SL male/unsexed; (Ref. 120397)
Morphology | Morphometrics
This species is distinguished from O. ercisianus by having a central pore in the supratemporal canal (vs. absent); a bold, dark-brown bar or vertically elongated blotch at the caudal fin-base, usually M-shaped or fused with a roundish or vertically elongate, dark-brown blotch at the vertical midline (vs. a mottled pigmentation not different from the flank pattern); usually with wide, dark-brown, bold bands on the caudal fin (vs. narrow, pale-brown, indistinct); no or a shallow dorsal and ventral adipose crest in individuals larger than 50 mm SL (vs. a short and high crest); longer and more slender caudal peduncle (caudal peduncle length 1.3-1.6 times its depth vs. 1.0-1.3); eye is larger with eye diameter 19-30% HL (vs. 14-19); a short prepelvic length, 48-53% SL (vs. 52-57).
It differs from O. hazarensis by the absence of suborbital groove in the male (vs. present); no scales on caudal peduncle (vs. present); shorter outer rostral barbel 22-34% HL (vs. 34-41); shorter maxillary barbel 24-30% HL (vs. 32-40).
It differs from O. kaynaki by having an incomplete lateral line (vs. complete); no scales on flank (vs. present); no pelvic axillary lobe (vs. present); absence or with a short dorsal adipose crest on the caudal peduncle (vs. a long adipose ridge).
It differs from O. tigris by having no scales on the flank (vs. present, usually isolated and deeply embedded); with a bold, dark-brown bar or a vertically elongated blotch on the caudal-fin-base or a bar fused with a roundish or vertically elongate, dark-brown blotch at the vertical midline (vs. 2 bold, black spots in most individuals, no pigmentation in others); no or a short dorsal-adipose crest on caudal peduncle not reaching to the vertical through the anal-fin base (vs. long adipose crest reaching beyond the anal-fin origin, usually below the last dorsal-fin rays when folded down); with a more slender caudal-peduncle, caudal peduncle length 1.3-1.6 times its depth (vs. 0.9-1.2).
This species is further distinguished from its congeners inhabiting the Euphrates drainage not belonging to the O. tigris species group by a combination of characters: it differs from O. araxensis by having an incomplete lateral line (vs. complete) and males without a suborbital groove (vs. present); differs from O. argyrogramma, O. bergianus, O. euphraticus, O. samanticus by the incomplete lateral line (vs. complete), a slightly emarginated caudal fin (vs. deeply emarginate or slightly forked), suborbital groove in the male absent (vs. present), and no black spots at the caudal-fin base (vs. having two bold black jet spots in O. argyrogramma, O. euphraticus); differs from O. paucilepis by having an incomplete lateral line (vs. complete) and no scales (vs. flank covered by isolated scales) (Ref. 120397).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Freyhof, J., C. Kaya, D. Turan and M. Geiger, 2019. Review of the Oxynoemacheilus tigris group with the description of two new species from the Euphrates drainage (Teleostei: Nemacheilidae). Zootaxa 4612(1):29-57. (Ref. 120397)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00342 - 0.01532), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this Genus-BS (Ref. 93245
Trophic level (Ref. 69278
): 2.7 ±0.3 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 (10 of 100).