Actinopteri (ray-finned fishes) > Gadiformes
(Cods) > Trachyrincidae
Etymology: Trachyrincus: Greek, trachys, -eia, -ys = rough + Greek, rhyngchos = snout (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; non-migratory; depth range 250 - 980 m (Ref. 1371), usually - m (Ref. ). Deep-water; 0°C - ; 5°S - 30°S, 85°W - 70°W (Ref. 1371)
Southeast Pacific: northern Peru to central Chile.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 44.0 cm TL male/unsexed; (Ref. 1371)
Morphology | Morphometrics
spines: 0. Snout long, sharply pointed, broad in juveniles becoming narrower and relatively long in adults. Scute-like scales bluntly pointed and denticulate; scales deeply embedded and covered with thick skin, the margins obscure. Row of enlarged scute-like scales along the base of the anal fin does not extend forward of anus. Overall color is grayish.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 1.9 - 4.4, mean 2.4 °C (based on 38 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00123 - 0.00812), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (47 of 100) .