Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Acheilognathidae
Etymology: Acheilognathus: Greek, a = without + Greek, cheilos = lip + Greek, gnathos = jaw (Ref. 45335); majusculus: The specific name is derived from the Latin majusculus, somewhat bigger; referring to the bigger body size of this species compared to the other bitterlings (Ref. 42957)
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; depth range 1 - m (Ref. 42957), usually - m (Ref. ). Subtropical; 0°C -
Asia: Somjin and Nakdong River, South Korea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. 42957); 8.4 cm SL (female)
Morphology | Morphometrics
soft rays: 8;
Vertebrae: 37 - 40. Nuptial color of males greenish with a dark green stripe from upper rear edge of gill opening to middle of caudal fin base, anal fin with red band submarginally and dark ventral fin without marginal white band (Ref. 42959).
Found in rocky bottom of fast-flowing streams (Ref. 42957). Feeds on algae (Ref. 42957).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kim, I.S. and H. Yang, 1998. Acheilognathus majusculus, a new bitterling (Pisces, Cyprinidae) from Korea, with revised key to species of the genus Acheilognathus of Korea. Korean J. Biol. Sci. 2:27-31. (Ref. 42957)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.0 ±0.00 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec < 10,000).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (33 of 100) .