Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Sciaenidae
(Drums or croakers)
Etymology: Genyonemus: Greek, geny, -yos = face, jaw + Greek, nema = filament (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range ? - 183 m (Ref. 2850), usually ? - 30 m (Ref. 2850). Subtropical; 49°N - 24°N, 129°W - 111°W
Eastern Pacific: Canada (Barkley Sound in British Columbia) to Mexico (southern Baja California; rare north of California, USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 13 - 15 cm
Max length : 41.0 cm TL male/unsexed; (Ref. 2850); max. reported age: 15 years (Ref. 56049)
Found over sandy bottoms (Ref. 9118). Feed on polychaetes, small shrimps, crabs and mollusks (Ref. 9118). Oviparous, multiple pelagic spawner (Ref. 51256).
A multiple spawner (Ref. 51256).
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: minor commercial; gamefish: yes
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 7.7 - 18.1, mean 10.7 (based on 104 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00567 - 0.01934), b=3.09 (2.94 - 3.24), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.49 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=1; tmax = 15; Min batch fecundity = 800).
Prior r = 0.58, 2 SD range = 0.33 - 1.00, log(r) = -0.54, SD log(r) = 0.27, Based on: 1 tgen, 1 tmax, 2 Fec records
Vulnerability (Ref. 59153
): Low vulnerability (23 of 100) .