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Icosteus aenigmaticus Lockington, 1880

Ragfish
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Native range | All suitable habitat | Point map | Year 2050
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Icosteus aenigmaticus   AquaMaps   Data sources: GBIF OBIS
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Image of Icosteus aenigmaticus (Ragfish)
Icosteus aenigmaticus
Picture by Van Orden, W.

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Icosteidae (Ragfish)
Etymology: Icosteus: Greek, eikoo = to sag, to bend something that is soft + Greek, osteon = bone.

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

marina batypelagisk; djupintervall 0 - 1420 m (Ref. 50550), usually 18 - 732 m (Ref. 2850). Deep-water; 66°N - 32°N

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

North Pacific: Japan to southeastern Alaska and to Point Loma, southern California, USA.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 213 cm TL hane/ej könsbestämd; (Ref. 2850)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 52 - 55; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 34 - 40. Pectorals rounded, pedunculate (Ref. 6885). Generally of a chocolate color (Ref. 6885). Young more robust, with an expanded and rounded caudal fin, 5 pelvic rays, and a brown and yellow irregularly blotched with faint purple color, dusky on fins (Ref. 6885).

Biologi     Ordlista (t.ex. epibenthic)

Adults occur near bottom; juveniles in shallow water or offshore near the surface (Ref. 50277). Feeds on jellyfish (Ref. 50277), fishes and squids (Ref. 2850), as well as octopuses (Ref. 4525).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

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)

  Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer
Ecology
Ekologi
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik
Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videos
Anatomy
Gill areas
Hjärnstorlek
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetik
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.
Outreach
Medarbetare
Taxonomy
Populärnamn
synonymer
Morfologi
Morfometri
Bilder
References
referenser

Verktyg

E-book | Fälthandbok | Längdfördelnings-verktyg | Livshistorie-verktyg | Prickkarta | Classification Tree | Catch-MSY |

Special reports

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Summary page | Point data | Populärnamn | Photos

Internet-källor

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

Estimates based on models

Preferred temperature (Ref. 123201): 2 - 14.1, mean 6.2 °C (based on 1370 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.5   ±0.57 se; based on food items.
Generation time: 8.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.13; Fec=293,000).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (71 of 100).