Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien demersaal; diepte 0 - 12 m (Ref. 2850). Temperate; 66°N - 32°N
Eastern Pacific: Bering Sea coast of Alaska to southern California, USA.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL mannelijk / geslacht onbekend; (Ref. 2850)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 69 - 78; Dorsale zachte stralen (totaal) : 0; Anale stekels: 2 - 3; Anale zachte stralen: 40 - 50. Caudal rounded; pectorals very small (Ref. 6885). Olive green to olive dark brown dorsally, yellow to green ventrally, frequently with darker markings on side, small white spots sometimes evident along midside, 4 light and dark streaks reaching back and down from eyes, fins green to brown tinged with yellow (Ref. 6885).
Found under rocks in intertidal areas and to about 12 m depth (Ref. 2850). Feeds on crustaceans, and red and green algae (Ref. 6885).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): 4.7 - 13, mean 8.2 °C (based on 581 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.6 ±0.20 se; based on food items.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).