Actinopterygii (strålfeniga fiskar) >
Perciformes (Perch-likes) >
Sciaenidae (Drums or croakers)
Etymology: Genyonemus: Greek, geny, -yos = face, jaw + Greek, nema = filament (Ref. 45335).
Miljö / Klimat / Range
Ekologi
; marina bentopelagisk; djupintervall ? - 183 m (Ref. 2850), usually ? - 30 m (Ref. 2850). Subtropical, preferred 13°C (Ref. 107945); 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 / Vikt / Age
Maturity: Lm ?, range 13 - 15 cm
Max length : 41.0 cm TL hane/ej könsbestämd; (Ref. 2850); rapporterad maxålder: 15 år (Ref. 56049)
Taggstrålar i ryggfenan (totalt): 13 - 16; Mjukstrålar i ryggfenan (totalt): 21-24; Taggstrålar i analfenan 2; Mjukstrålar i analfenan: 11 - 12; Ryggkotor: 25. Pelvic fins with fleshy appendage at base, first ray with free thread-like tip.
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. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Fiskeri: mindre kommeriell; sportfisk: ja
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00554 - 0.01890), b=3.09 (2.94 - 3.24), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.49 se; Based on food items.
Resiliens (Ref.
69278): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (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) .