Taxonomic Remarks
This species has been synonymized with Trichiurus lepturus Linnaeus, 1758 for a long period.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bentopelagisk; djupintervall 250 - 350 m (Ref. 6181). Deep-water; 31°N - 14°S, 32°E - 139°E (Ref. 6181)
Western Indian Ocean: Red Sea and west coast of India. Eastern Indian Ocean: Timor Sea.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 42.4 cm TL hane/ej könsbestämd; (Ref. 6181); common length : 23.0 cm TL hane/ej könsbestämd; (Ref. 6181)
Taggstrålar i ryggfenan (totalt) : 3; Mjukstrålar i ryggfenan (totalt) : 106 - 116; Mjukstrålar i analfenan: 80. Body extremely elongate, compressed and tapering to a point. Mouth very large with a small dermal process at the tip of each jaw. Pelvic and caudal fins absent. Lateral line originating at the upper margin of the gill cover, running obliquely to behind the tip of the pectoral fins, then parallel to the ventral contour of the body. Fresh specimens are pearl white and slightly dusky dorsally; the margins of the dorsal and anal fins dusky in formalin.
Body shape (shape guide): elongated; Cross section: compressed.
Found in deep waters off Kerala and Tamil Nadu, India. Feeds on deep water shrimps and small fishes like myctophids and gonostomatids. Caught with deep water trawls mixed together with other commercially important fish as bycatch.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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 på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
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Särskilda rapporter
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00191 (0.00078 - 0.00464), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
4.2 ±0.73 se; based on food items. |
Resiliens (Ref. 120179) |
Låg, lägsta populationsfördubblingstid 4,5-14 år (Assuming tmax>10). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (22 of 100). 🛈 |
Näringsämnen (Ref. 124155) |
Calcium = 167 [42, 435] mg/100g; Iron = 0.939 [0.262, 3.001] mg/100g; Protein = 17.7 [15.9, 19.6] %; Omega3 = 0.285 [0.122, 0.695] g/100g; Selenium = 57.5 [16.1, 220.8] μg/100g; VitaminA = 5.47 [0.58, 46.73] μg/100g; Zinc = 0.834 [0.382, 1.501] mg/100g (wet weight); |