Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Sebastidae
(Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology: Helicolenus: Greek, helike, -es = spiral + Greek, lenos, -ou = cavity (Ref. 45335). More on author: Norman.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 80 - 215 m (Ref. 47377), usually 80 - 200 m (Ref. 27363). Subtropical; - 40°S
Southwest Atlantic: [Uruguay to northern Argentina according to Ref. 27363]; south of Rio Grande to Argentina (Ref. 47377).
Length at first maturity / Size / Weight / Age
Maturity: Lm 18.0, range 14 - 24 cm
Max length : 45.0 cm TL male/unsexed; (Ref. 47377); common length : 27.9 cm SL male/unsexed; (Ref. 27363)
Morphology | Morphometrics
soft rays: 5. Body orange-red dorsally; side more or less spotted or mottled with vermillion color; lower part pinkish white; dorsal fin membranes with dark spots and blotches; pectoral, pelvic and anal fins reddish (Ref. 27363).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakamura, I., T. Inada, M. Takeda and H. Hatanaka, 1986. Important fishes trawled off Patagonia. Japan Marine Fishery Resource Research Center, Tokyo. 369 p. (Ref. 27363)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 5.4 - 19.1, mean 17.2 (based on 50 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00683 - 0.01533), b=3.10 (2.98 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 4.2 ±0.2 se; Based on diet studies.
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (tm=14-24; K=0.02).
Vulnerability (Ref. 59153
): High to very high vulnerability (68 of 100) .