Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser benthopelagisch; ozeanodrom (Ref. 51243); tiefenbereich 100 - 975 m (Ref. 9302), usually 200 - 400 m (Ref. 6181). Subtropical; 55°N - 43°S, 180°W - 180°E (Ref. 6181)
Circumtropical and temperate seas of the world.
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 300 cm TL Männchen/unbestimmt; (Ref. 5951); common length : 150 cm SL Männchen/unbestimmt; (Ref. 6181); max. veröff. Gewicht: 63.5 kg (Ref. 4699)
Rückenflossenstacheln (insgesamt) : 13 - 15; Rückenflossenweichstrahlen (insgesamt) : 15 - 18; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 15 - 18; Wirbelzahl: 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.
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).
Life cycle and mating behavior
Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven
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 Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Poisonous to eat (Ref. 4690)
Nutzung durch Menschen
Fischereien: weniger kommerziell; Sportfisch: ja
Tools
Zusatzinformationen
Download XML
Internet Quellen
Estimates based on models
Preferred temperature (Ref.
123201): 8.6 - 19, mean 12.9 °C (based on 603 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00191 - 0.00629), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.2 ±0.57 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming tm>4).
Prior r = 0.28, 95% CL = 0.19 - 0.42, Based on 1 data-limited stock assessment.
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (38 of 100).
Nutrients (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);
