Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien benthopelagisch; diepte 230 - 920 m (Ref. 86942). Deep-water; 13°S - 40°S, 143°E - 83°W (Ref. 6181)
Southeast Pacific: seamounts of Nazca and Sala y Gomez Ridges and at Easter Island. Southwest Pacific: Tasman Sea (from 23° to 37°S along east coast of Australia and on seamounts), and from southern Fiji.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 72.5 cm SL mannelijk / geslacht onbekend; (Ref. 6181)
Dorsale stekels (totaal) : 19 - 20; Dorsale zachte stralen (totaal) : 15 - 17; Anale stekels: 2; Anale zachte stralen: 12 - 14; Wervels: 34. Most of the body is naked except for the wedge-shaped stripe of squamation extending forward from the caudal peduncle along the horizontal part of the lower lateral line and a few scales along the posterior part of the upper lateral line. Pyloric caeca 8 to 10. Pelvic fins entirely absent at over 25 cm SL. Body color is grayish or brownish with metallic tint; fins blackish or gray.
Body shape (shape guide): elongated; Cross section: compressed.
Probably schooling, migrates to midwater at night. Feeds on fishes (myctophids, Maurolicus, eels, macrourids, carangids, emmelichthyids, etc.), prawn and squid; large prey items are swallowed in parts (Ref. 6202). Matures at about 25 cm standard length. No special fishery but appears as a bycatch of deep-water prawn trawl fishery in New South Wales, Australia.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | 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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: visserij voor eigen gebruik
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Gewenste temperatuur (Ref.
123201): 12 - 20.8, mean 17.1 °C (based on 57 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00169 - 0.00815), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 4.4 ±0.74 se; based on food items.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): High vulnerability (55 of 100).
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