Environment: milieu / climate zone / Tiefenbereich / distribution range
Ökologie
seewasser demersal; tiefenbereich 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 / Size / Gewicht / Alter
Geschlechtsreife: Lm 47.0, range 43 - 51 cm
Max length : 74.0 cm TL Männchen/unbestimmt; (Ref. 56527); max. veröff. Gewicht: 8.0 kg (Ref. 56527)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 8 - 10; Rückenflossenweichstrahlen (insgesamt) : 14 - 17; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 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).
Body shape (shape guide): fusiform / normal.
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).
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 Rote Liste Status (Ref. 130435: Version 2025-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
Zusatzinformationen
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Internet Quellen
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 (0.00364 - 0.01313), 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.
Widerstandsfähigkeit (Ref.
120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming Fec=10-100).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).
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