Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βενθικό(ς); μη μεταναστευτικό(ά) (Ref. 43439); εύρος βάθους 0 - 24 m (Ref. 51666), usually 0 - 1 m (Ref. 43439). Subtropical; 46°N - 27°N, 126°W - 113°W
Eastern Pacific: southern Oregon, USA to northern central Baja California, Mexico; rare south of Point Conception, California, USA.
Length at first maturity / Μέγεθος / Βάρος / Age
Maturity: Lm 40.6, range 36 - 45.72 cm
Max length : 76.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 2850); μεγ. αναφερόμενη ηλικία: 18 έτη (Ref. 43439)
Common inshore, in tide pools or shallow rocky areas, from the intertidal zone to 24 m depth. May remain out of water under rocks or seaweed (Ref. 31184). Feeds mainly on crustaceans and algae. Breathes air (Ref. 31184) and can remain out of water for 15-35 hours if kept moist (Ref. 51276). Demersal spawners in nearshore habitats (Ref. 56049). Oviparous (Ref. 205). Commonly caught by 'poke-poling', a method using a long bamboo pole with a very short wire leader and baited hook. Good eating.
Oviparous (Ref. 205). Nests in crevices (Ref. 205). A parent coils about the eggs (Ref. 205).
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. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
αλιεία: παραδοσιακή αλιεία; αλιεία αναψυχής: ναί; Ενυδρείο: Εμπορικό(ά)
Εργαλεία
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 12.2 - 19, mean 15.9 °C (based on 70 cells).
Phylogenetic diversity index (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).
Τροφικό Επίπεδο (Ref.
69278): 2.3 ±0.2 se; based on diet studies.
Generation time: 6.6 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Ελαστικότητα (Ref.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (tm=4; tmax=18; Fec = 18,000).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
