Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري قاعية التغذية و المعيشة; نطاق العمق 0 - 30 m (Ref. 6885). Temperate; 59°N - 14°N, 136°W - 93°W
Eastern Pacific: Sitka, Alaska to Punta Banda, northern Baja California, Mexico.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm TL ذكر/ مختلط الجنس; (Ref. 2850); العمر: 9 سنين (Ref. 56049)
الأشواك الظهرية (المجموع) : 24 - 27; الأشعة الظهرية الناعمة (المجموع) : 9 - 10; شوكة شرجية: 1; أشعه شرجية لينه: 9. Spinous dorsal represented by a series of small spines, free from membrane; soft dorsal fin triangular and placed well back on body; caudal fin small and finely forked; anal fin spine small and broad, the fin mirroring the soft dorsal fin; pectorals truncate (Ref. 6885). Pale mottled brown, varying from olive green to yellow brown dorsally; creamy white ventrally; a bright silvery patch between operculum and pectorals extending to throat and bounded above by a dark band that extends forward through eye to snout; breeding males with bright red snout and phosphorescent snout (Ref. 6885).
Found in kelp beds, eelgrass, rocky areas, and over sand bottoms (Ref. 2850). Usually near the surface in schools, sometimes in dense schools well offshore (Ref. 2850). Feeds on small crustaceans and fish larvae (Ref. 6885). Minimum depth reported taken from Ref. 57178.
Nest is built, usually in kelp. Males are territorial (Ref. 6885) and guard the nest.
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)
استخدامات بشرية
مصائد: تجاري; حوض مائي: احواض مائية عامة
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 8.9 - 17.3, mean 10.4 °C (based on 184 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00103 - 0.00672), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.4 ±0.42 se; based on food items.
Generation time: 2.1 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (tm=1; tmax=9; Fec=1,200; K=0.5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).
Nutrients (Ref.
124155): Calcium = 59.4 [36.7, 125.3] mg/100g; Iron = 0.409 [0.237, 0.732] mg/100g; Protein = 16.6 [15.4, 17.8] %; Omega3 = 0.449 [0.219, 0.928] g/100g; Selenium = 10.7 [4.5, 23.6] μg/100g; VitaminA = 46.3 [11.9, 175.5] μg/100g; Zinc = 0.781 [0.547, 1.090] mg/100g (wet weight);
