You can sponsor this page

Sebastolobus alascanus Bean, 1890

Shortspine thornyhead
Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Sebastolobus alascanus   AquaMaps   Data sources: GBIF OBIS
Upload your photos and videos
Pictures | Google image
Image of Sebastolobus alascanus (Shortspine thornyhead)
Sebastolobus alascanus
Picture by Love, M.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | 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 Ecologia

marino demersale; distribuzione batimetrica 17 - 1600 m (Ref. 50550), usually 91 - ? m (Ref. 2850). Temperate

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | 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).

Length at first maturity / Size / Peso / Age

Maturity: Lm 22.0  range ? - ? cm
Max length : 80.0 cm SL maschio/sesso non determinato; (Ref. 559); peso massimo pubblicato: 9.0 kg (Ref. 56527); Età massima riportata: 100 anni (Ref. 90032)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 15 - 17; Raggi dorsali molli (totale) : 8 - 9; Spine anali: 3; Raggi anali molli: 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).

Biologia     Glossario (es. epibenthic)

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).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

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).

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

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 2024-1)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Venomous (Ref. 57406)





Human uses

Pesca: scarso interesse commerciale
FAO - pesca: landings; Publication: search | FishSource | Sea Around Us

Informazioni ulteriori

Trophic ecology
Prede
Alimentazione
Consumo di cibo
Food rations
Predatori
Ecology
Ecologia
Life cycle
Riproduzione
Maturità
Maturity/Gills rel.
Fecundity
Deposizione
Spawning aggregations
Uova
Egg development
Larve
Dinamica popolazioni larvali
Distribution
Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
BRUVS - Videos
Anatomy
Area branchiale
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetica
Heterozygosity
Ereditarietà
Human related
Aquaculture systems
Profili di acquacoltura
Varietà
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaboratori
References
Bibliografia

Strumenti

Special reports

Download XML

Fonti Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Genere, Specie | DiscoverLife | ECOTOX | FAO - pesca: landings; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | OceanAdapt | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, ricerca | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 1.2 - 6.7, mean 3.8 °C (based on 417 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00397 - 0.01205), b=3.16 (3.00 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.3 se; based on diet studies.
Generation time: 47.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilienza (Ref. 120179):  Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (tmax> 100 (validated age: 62 yrs); tm= 13; Fec > 10,000).
Prior r = 0.03, 95% CL = 0.02 - 0.05, Based on 2 full stock assessments.
Fishing Vulnerability (Ref. 59153):  High vulnerability (59 of 100).
Climate Vulnerability (Ref. 125649):  Moderate vulnerability (38 of 100).
Price category (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 18.4 [8.0, 49.9] mg/100g; Iron = 0.287 [0.128, 0.565] mg/100g; Protein = 17.5 [15.8, 19.3] %; Omega3 = 1.01 [0.41, 2.73] g/100g; Selenium = 29.6 [13.0, 73.1] μg/100g; VitaminA = 13.5 [3.9, 44.9] μg/100g; Zinc = 0.518 [0.305, 0.810] mg/100g (wet weight);