Actinopteri (ray-finned fishes) > Trachichthyiformes
(Roughies) > Trachichthyidae
Etymology: Paratrachichthys: Greek, para in the side of + Greek, trachys = rough + Greek, ichthys = fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 20 - 500 m (Ref. 72381). Deep-water; 18°S - 50°S, 162°E - 175°W
Western Pacific: New Zealand (Ref. 5755); Australia (Ref. 4537) [questionable according to Moore, pers. comm.].
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 24.6 cm SL male/unsexed; (Ref. 9872)
Reported from between depths of 70 m (Ref. 9872) and 327 m (Ref. 58489).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 9.2 - 15.8, mean 13.3 °C (based on 58 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00423 - 0.02715), b=3.02 (2.80 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.50 se; based on food items.
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (62 of 100) .