Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Aphaniidae
Etymology: Kosswigichthys: Because of Curt Kosswig, Berlin, 1903-1982; he studied the cave fishes and wrote when in exile in Turkey about the "regressive evolution"/ Hamburg University.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; non-migratory. Temperate; 10°C - 25°C (Ref. 2060); 38°N - 37°N
Asia: Turkey (endemic to Lake Hazar).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm TL male/unsexed; (Ref. 27139)
This species with three rows of conical teeth; a slightly upturned lower jaw; male without black or dark-brown bars in the caudal fin; no head canals; presence of a dermal sheath at the anal-fin base in the nuptial female; body naked (Ref. 126233).
Not a seasonal killifish. Is very difficult to maintain in the aquarium (Ref. 27139).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Freyhof, J. and B. Yoğurtçuoğlu, 2020. A proposal for a new generic structure of the killifish family Aphaniidae, with the description of Aphaniops teimorii (Teleostei: Cyprinodontiformes). Zootaxa 4810(3):421-451. (Ref. 126233)
IUCN Red List Status (Ref. 126983)
Threat to humans
Fisheries: of no interest; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00504 - 0.01373), b=3.31 (3.17 - 3.45), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).