Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά); Υφάλμυρο βενθικό(ς); μη μεταναστευτικό(ά); εύρος βάθους 0 - 102 m (Ref. 58496). Temperate; 66°N - 32°N
North Pacific: Sea of Okhotsk and the Bering Sea to Los Angeles County, USA, but records west of the Gulf of Alaska doubtful.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.9 cm TL αρσενικό/απροσδιόριστο; (Ref. 2850)
Ραχιαίες άκανθες (συνολικά): 8 - 9; Μαλακές ραχιαίες ακτίνες (συνολικά): 16-18; Εδρικές άκανθες 0; Μαλακές εδρικές ακτίνες: 12 - 14. Caudal fin rounded; .
A resident intertidal species with homing behavior (Ref. 32612), found in sheltered areas and common in tide pools (Ref. 2850). In areas with rough surf, it occurs in higher, more sheltered places (Ref. 2850). Can leave tide pools when aquatic conditions become inhospitable (Ref. 31184). Shows a tendency to return to its home pool if displaced (Ref. 6885). Breathes air when out of water (Ref. 31184).
Males clasp females with their pectoral fin and fertilizes the eggs as it is being deposited on a rock (Ref. 6885).
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)
Threat to humans
Harmless
Human uses
αλιεία:
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 5.8 - 14, mean 9.1 °C (based on 242 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.4 ±0.47 se; based on food items.
Generation time: 5.3 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (K=0.21; tm=1).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
