Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Kyphosidae
(Sea chubs) > Microcanthinae
Etymology: Atypichthys: Greek, atypus = not following the rules + Greek, ichthys = fish; perhaps a strange species.
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; reef-associated. Subtropical
Indo-West Pacific: southeastern Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 9002); common length : 18.0 cm TL male/unsexed; (Ref. 9002)
A schooling species, particularly common on coastal reefs in southern New South Wales (Ref. 9002). Also commonly found under jetties in harbors and large estuaries (Ref. 9002).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kuiter, R.H., 1993. Coastal fishes of south-eastern Australia. University of Hawaii Press. Honolulu, Hawaii. 437 p. (Ref. 9002)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 15.3 - 25, mean 18.5 (based on 406 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02291 (0.00884 - 0.05937), b=2.99 (2.77 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.4 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
): Low to moderate vulnerability (29 of 100) .