Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Polyprionidae
Etymology: Stereolepis: Greek, stereos = dense + Greek,lepis = scale (Ref. 45335). More on author: Ayres.
Environment / Climate / Range
Marine; demersal; depth range 5 - 46 m (Ref. 2850). Subtropical, preferred 23°C (Ref. 107945); 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. Houghton Mifflin Company, Boston, U.S.A. 336 p. (Ref. 2850)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: commercial; gamefish: yes
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
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) .