Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Hemitripteridae
(Sea ravens or sailfin sculpins)
Etymology: Blepsias: Greek, blepsias, -ou = a kind of fish (Ref. 45335). More on author: Pallas.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 150 m (Ref. 50550). Temperate; 66°N - 34°N
North Pacific: Sea of Japan to the Bering Sea and to San Simeon, central California, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 559)
Occurs in intertidal areas and to 37 m depth, but more common in subtidal areas (Ref. 2850). Often found among algae (Ref. 2850). Adults inject eggs into the tissue near the gastral cavity of a sponge to use as a spawning bed (Ref. 34818).
External fertilization with internal insemination (Ref. 37516). Adults inject eggs into the tissue near the gastral cavity of a sponge to use as a spawning bed (Ref. 34818).
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. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 2.9 - 14, mean 7.1 (based on 520 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7539 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00282 - 0.01229), b=3.11 (2.91 - 3.31), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.5 se; Based on diet studies.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Fec=234-404).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .