United States (contiguous states) country information

Common names: Channel rockcod, Idiotfish, Idiotfish
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: minor commercial | Ref: Kramer, D.E. and V.M. O'Connell, 1995
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Of considerable importantance to the California trawl fishery; the catch is mainly exported to Japan but small quantities are sold in US markets (Ref. 27437). Also Ref. 4925, 6793, 6885.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983
National Database:

Common names from other countries

Chancharro alacrán, Шипощек аляскинский, Chancharro alacrán, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Perciformes/Scorpaenoidei (Scorpionfishes) > Sebastidae (Rockfishes, rockcods and thornyheads) > Sebastolobinae
Etymology: Sebastolobus: Greek, sebastes = august, venerable + Greek, lobos = lobe (Ref. 45335); alascanus: Species name after Alaska, the type locality (Ref. 27436).
More on author: Bean.

Environment: milieu / climate zone / depth range / distribution range Ecologie

marien demersaal; diepte 17 - 1600 m (Ref. 50550), usually 91 - ? m (Ref. 2850). Temperate

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

North Pacific: Sea of Okhotsk north to the Navarin Canyon in the Bering Sea and from Stalemate Bank and Ulm Plateau in the Aleutian Islands southeast to Cedros Island, Baja California, Mexico. Reported from Japan (Ref. 559).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 22.0 range ? - ? cm
Max length : 80.0 cm SL mannelijk / geslacht onbekend; (Ref. 559); max. gepubliceerd gewicht: 9.0 kg (Ref. 56527); max. gerapporteerde leeftijd: 100 Jaren (Ref. 90032)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 15 - 17; Dorsale zachte stralen (totaal): 8-9; Anale stekels 3; Anale zachte stralen: 4 - 5. Head spines very strong - nasal, preocular, supraocular, postocular, tympanic, parietal and nuchal spines present, coronal spines absent; large head and elongate body; strong spiny ridge on head; 3rd dorsal spine not much longer than 2nd, 4th or 5th; strong notch on pectoral fin (Ref. 27437). Bright red with some black on fins; gill chamber mostly pale (Ref. 27437). Caudal slightly rounded (Ref. 6885).

Very common on soft bottoms (Ref. 2850). Oviparous (Ref. 205). Eggs are extruded in floating gelatinous masses (Ref. 31279). Have a thick glandular tissue on posterior margin of fin spines which is believed to be venomous (Ref. 57406). Rarely taken by game fishers (Ref. 27436). Flesh sweeter than that of other rockfishes (Ref. 27436).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Unlike other representatives of this group, this species has internal fertilization Oviparous (Ref. 6885). Females possess specialized ovarian structures including stalk-like ovigerous lamellae and secretory epithelia (Ref. 32832).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Bedreigd (EN) (A2d); Date assessed: 01 January 2000

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Venomous (Ref. 57406)

Gebruik door de mens

Visserij: van minder commercieel belang

FAO(visserij: productie; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 1.2 - 6.7, mean 3.8 (based on 417 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00708 (0.00408 - 0.01228), b=3.16 (3.00 - 3.32), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.6 ±0.3 se; based on diet studies.

Weerstandsvermogen (Ref. 120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (tmax> 100 (validated age: 62 yrs); tm= 13; Fec > 10,000).

Prior r = 0.02, 95% CL = 0.01 - 0.03, Based on 1 stock assessment.

Fishing Vulnerability (Ref. 59153): High vulnerability (59 of 100).

Climate Vulnerability (Ref. 125649): Moderate vulnerability (38 of 100).

Prijsklasse (Ref. 80766): Very high.

Sebastolobus alascanus Bean, 1890