Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
समुद्री ड़िमरसल; गहराई सीमा 0 - 680 m (Ref. 50550), usually ? - 80 m (Ref. 43939). Temperate
North Pacific: Chukchi Sea to Bearing Sea, eastern Aleutian Is., and Gulf of Alaska to Kachemak Bay, Cook Inlet; SE Alaska at Limestone Inlet; to Okhotsk and Japan seas as far as northern North Korea.
Length at first maturity / आकार / वज़न / Age
Maturity: Lm 47.0, range 43 - 51 cm
Max length : 74.0 cm TL पुल्लिंग / अलिंग; (Ref. 56527); अधिकतम प्रकाशित वज़न: 8.0 kg (Ref. 56527)
Short description
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय रीढ़ (सम्पूर्ण) : 8 - 10; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 14 - 17; गुदा कांटा: 0; ऐनल सौफट रेज़: 13 - 15. Head depressed, with bony spines and ridges dorsally (Ref. 559). Rounded bony plates bearing serrated margin present on dorsolateral surface of body (Ref. 559).
Found in shallow waters (Ref. 2850), on sand and mud bottoms from intertidal zone to depths often not greater than 80 m; seldom caught deeper than 150 m (Ref. 43939).
Life cycle and mating behavior
Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा
Mecklenburg, C.W., T.A. Mecklenburg and L.K. Thorsteinson, 2002. Fishes of Alaska. American Fisheries Society, Bethesda, Maryland. xxxvii +1037 p. (Ref. 43939)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
मात्स्यिकी: कोई रुचि बग़ैर
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Preferred temperature (Ref.
123201): -0.4 - 6.9, mean 2.4 °C (based on 1768 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00371 - 0.01290), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.3 se; based on diet studies.
लौटाव (Ref.
120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Assuming Fec=10-100).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).
