Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino benthopelagico; oceanodromo (Ref. 51243); distribuzione batimetrica 100 - 975 m (Ref. 9302), usually 200 - 400 m (Ref. 6181). Subtropical; 55°N - 43°S, 180°W - 180°E (Ref. 6181)
Circumtropical and Circumtemperate
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 300 cm TL maschio/sesso non determinato; (Ref. 5951); common length : 150 cm SL maschio/sesso non determinato; (Ref. 6181); peso massimo pubblicato: 63.5 kg (Ref. 4699)
Spine dorsali (totale) : 13 - 15; Raggi dorsali molli (totale) : 15 - 18; Spine anali: 0; Raggi anali molli: 15 - 18; Vertebre: 32. Skin very rough, scales interspersed with spinous bony tubercles. Mid-ventral (abdominal) keel on the ventral contour. Body is uniformly brown to dark brown, tips of the pectoral and pelvic fins black, margins of the second dorsal and anal fins white in young specimens.
Body shape (shape guide): elongated; Cross section: compressed.
Usually over the continental shelf, sometimes in oceanic waters down to 800 m (Ref. 9302). Usually solitary or in pairs near the bottom (Ref. 6181). Migrates far offshore (Ref. 26139). Pelagic (Ref. 5951). Feeds on fish, crustaceans and squid (Ref. 6181). The peculiar wooden 'palu' or Ruvettus hook is used to catch this species in south central Pacific (Ref. 6181). The flesh is very oily, with purgative properties, if eaten much (Ref. 6181). Marketed fresh and as fish cakes in Japan (Ref. 9302); also processed into fishmeal (Ref. 5217). Maximum length reported to reach up to 2 m only (Heemstra, pers. comm. 03/03).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Poisonous to eat (Ref. 4690)
Usi umani
Pesca: scarso interesse commerciale; Pesce da pesca sportiva: si
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00339 (0.00188 - 0.00609), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
4.2 ±0.57 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming tm>4). |
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Rate of population increase |
Prior r = 0.28, 95% CL = 0.19 - 0.42, Based on 1 data-limited stock assessment. |
Vulnerabilità della pesca (Ref. 59153) |
Very high vulnerability (85 of 100). 🛈 |
Vulnerabilità climatica (Ref. 125649) |
Moderate vulnerability (38 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Medium.
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Nutrienti (Ref. 124155) |
Calcium = 17.3 [7.8, 32.2] mg/100g; Iron = 0.573 [0.271, 1.108] mg/100g; Protein = 17.7 [15.5, 19.7] %; Omega3 = 0.202 [0.110, 0.353] g/100g; Selenium = 81.8 [36.6, 171.9] μg/100g; VitaminA = 10.3 [3.2, 36.7] μg/100g; Zinc = 0.411 [0.288, 0.611] mg/100g (wet weight); |