Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Polyprionidae
Etymology: Stereolepis: Greek, stereos = dense + Greek,lepis = scale (Ref. 45335). More on author: Ayres.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 5 - 46 m (Ref. 2850). Subtropical; 41°N - 16°N
Eastern Pacific: Humboldt Bay in California, USA to Mexico. Northwest Pacific: Japan (Ref. 559).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 250 cm TL male/unsexed; (Ref. 40637); max. published weight: 255.6 kg (Ref. 4699); max. reported age: 75 years (Ref. 4563)
Occur on rock bottoms; near shore, outside kelp beds and along drop-offs (Ref. 2850). Large specimens usually found deeper than 30 m, small ones over sand and in kelp beds mostly from 12-21 m (Ref. 2850). Aggregate for spawning in summer (Ref. 2850). Pelagic spawners (Ref. 56049). Longevity of 90 to 100 years (Ref. 56049) stemmed from speculation on the age of a 557 lb fish caught in 1962, but the oldest age determined from otoliths of a 435 lb fish was 72 to75 years (Ref. 4563). Validated age so far is up to >50 years using bomb radiocarbon (A.H. Andrews, pers. comm.)
Pelagic spawner (Ref. 56049).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Fisheries: commercial; gamefish: yes
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 14.8 - 23, mean 20.9 (based on 48 cells).
Phylogenetic diversity index (Ref. 82805
= 0.8125 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref. 69278
): 4.5 ±0.80 se; Based on food items.
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (tm=11; tmax=75; also Musick et al. 2000 (Ref. 36717
Prior r = 0.17, 2 SD range = 0.05 - 0.62, log(r) = -1.77, SD log(r) = 0.64, Based on: 2 tgen, 1 tmax, 1 Fec records
Vulnerability (Ref. 59153
): Very high vulnerability (86 of 100) .