Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien benthopelagisch; diepte 180 - 400 m (Ref. 6181). Deep-water; 20°S - 27°S, 90°W - 81°W (Ref. 6181)
Southeast Pacific: known only from seamounts of Nazca Submarine Ridge and adjacent parts of Sala y Gomez Ridge.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 43.0 cm SL mannelijk / geslacht onbekend; (Ref. 6181); max. gerapporteerde leeftijd: 15 Jaren (Ref. 6204)
Dorsale stekels (totaal) : 18; Dorsale zachte stralen (totaal) : 15 - 18; Anale stekels: 2; Anale zachte stralen: 12 - 14; Wervels: 34. Lateral line branching below the 5th to 7th spine of the first dorsal fin, usually ending below the third to the last spine of the first dorsal fin. The lower branch runs mid laterally, sometimes undulating on caudal peduncle. Body is entirely scaled at a length of over 20 cm SL. Pyloric caeca 7 or 8. Body color is brown with silvery tint; anterior 2 membranes of the first dorsal fin black, the rest of the fin black edged; the posterior part of the pectoral fin is black.
Body shape (shape guide): elongated; Cross section: compressed.
Feeds on squid and fish. Matures at about 25 cm.
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))
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Harmless
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Schattingen op basis van modellen
Gewenste temperatuur (Ref.
123201): 10.6 - 11.1, mean 10.8 °C (based on 10 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): 4.5 ±0.62 se; based on food items.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (tmax=15).
Kwetsbaarheid van de visserij (Ref.
59153): Moderate vulnerability (41 of 100).
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