Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Kyphosidae
(Sea chubs) > Scorpidinae
Etymology: Medialuna: Latin, media = middle + Latin, luna = noon (Ref. 45335).
Environment / Climate / Range
Marine; demersal; depth range 0 - 40 m (Ref. 9310). Temperate; 51°N - 23°N
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 48.0 cm TL male/unsexed; (Ref. 2850); max. reported age: 8 years (Ref. 72462)
Eastern Pacific: Vancouver Island in British Columbia, Canada, to Gulf of California; rare north of Point Conception in California, USA.
Often occur in rocky areas and in kelp beds. Found from inshore areas to 40 m depth. Feed on seaweed and small invertebrates. Pelagic spawner (Ref. 56049). Also caught with harpoons. The flesh is of excellent quality and is marketed fresh (Ref. 9310).
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.
IUCN Red List Status (Ref. 90363)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=-1.95000 (nan - nan), b=3.04 (2.87 - 3.21), based on all LWR estimates for this BS (Ref. 93245
Trophic Level (Ref. 69278
): 2.7 ±0.22 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=2).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100) .