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Promethichthys prometheus (Cuvier, 1832)

Roudi escolar
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Native range | All suitable habitat | Point map | Year 2050
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Promethichthys prometheus   AquaMaps   Data sources: GBIF OBIS
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Image of Promethichthys prometheus (Roudi escolar)
Promethichthys prometheus
Female picture by Cambraia Duarte, P.M.N. (c)ImagDOP

Common names from other countries

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

> Scombriformes (Mackerels) > Gempylidae (Snake mackerels)
Etymology:   More on author: Cuvier.

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

marina bentopelagisk; havsvandrande (Ref. 51243); djupintervall 80 - 800 m (Ref. 2683), usually 300 - 400 m (Ref. 5217).   Subtropical; 50°N - 36°S, 180°W - 180°E

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

Tropical and warm temperate waters of all oceans, but absent from eastern Pacific except at Sala y Gomez Ridge.

Length at first maturity / Size / Vikt / Age

Maturity: Lm 47.4  range ? - ? cm
Max length : 100.0 cm SL hane/ej könsbestämd; (Ref. 6181); common length : 40.0 cm SL hane/ej könsbestämd; (Ref. 3403)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 18 - 20; Mjukstrålar i ryggfenan (totalt) : 17 - 20; Taggstrålar i analfenan: 2 - 3; Mjukstrålar i analfenan: 15 - 17. Body moderately elongate. Mouth with fang-like teeth. Spinescent gill rakers on the first arch with 1 - 3 cusps and many small spines; the angular raker long and triple-rooted. Body entirely scaled at over 20 - 25 cm SL. Pyloric caeca 7 or 8. Color is grayish to copper brown; fins blackish at over 40 cm SL, yellowish with black tips in smaller specimens (the first dorsal fin with a black blotch on two anteriormost membranes); the buccal and branchial cavities are black. Pelvic fin reduced to one spine that becomes entirely absent in specimens more than 40 cm SL.

Biologi     Ordlista (t.ex. epibenthic)

Found at continental slopes, around oceanic islands and submarine rises (Ref. 6181). Meso-benthopelagic (Ref. 58302). Migrate to midwater at night (Ref. 6181). Feed on fish, cephalopods and crustaceans (Ref. 6181). Eggs and larvae are pelagic (Ref. 6766).

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

Probably spawns throughout the year in warmer seas.

Main reference Upload your references | referenser | Koordinator : Parin, Nikolay V. | Medarbetare

Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 22 August 2012

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 31637)




Human uses

Fiskeri: husbehovsfiske; sportfisk: ja; bete: usually
FAO(fiskeri: produktion; publication : search) | FishSource | Sea Around Us

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer
Ecology
Ekologi
Home ranges
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
References
referenser

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Estimates based on models

Preferred temperature (Ref. 115969): 8.6 - 16.5, mean 11.1 (based on 329 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00224 - 0.00588), b=3.06 (2.92 - 3.20), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.2   ±0.57 se; based on food items.
Resiliens (Ref. 120179):  Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.17-0.18; tm=4).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).
Climate Vulnerability (Ref. 125649):  Moderate vulnerability (39 of 100).
Price category (Ref. 80766):   Unknown.