Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
समुद्री; खारा ड़िमरसल; गैर प्रवासी; गहराई सीमा 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.
आकार / वज़न / Age
परिपक्व अवधि: Lm ? range ? - ? cm
Max length : 8.9 cm TL पुल्लिंग / अलिंग; (Ref. 2850)
पृष्ठीय रीढ़ (सम्पूर्ण) : 8 - 9; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 16 - 18; गुदा कांटा: 0; ऐनल सौफट रेज़: 12 - 14. Caudal fin rounded; .
Body shape (shape guide): elongated.
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).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
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: Version 2025-1)
Threat to humans
Harmless
Human uses
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Preferred temperature (संदर्भ
123201): 5.8 - 14, mean 9.1 °C (based on 242 cells).
Phylogenetic diversity index (संदर्भ
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00281 - 0.01234), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (संदर्भ
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.
लौटाव (संदर्भ
120179): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (K=0.21; tm=1).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
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