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Scombriformes (Mackerels) >
Gempylidae (Snake mackerels)
Etymology: Lepidocybium: Greek, lepis = scale + Greek, kybion, -ou = tunna (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βενθοπελαγικό; ωκεανόδρομο(ς) (Ref. 51243); εύρος βάθους 200 - 1100 m (Ref. 44037). Deep-water; 50°N - 56°S, 180°W - 180°E (Ref. 6181)
Tropical and temperate seas of the World, but probably not occurring in the northern Indian Ocean. Northwest Atlantic: Canada (Ref. 5951). Eastern Atlantic: known from 13°N off Guinea to Lobutu, Angola (Ref. 10816).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 200 cm SL αρσενικό/απροσδιόριστο; (Ref. 6181); common length : 150 cm SL αρσενικό/απροσδιόριστο; (Ref. 6181); μεγ. δημοσιευμένο βάρος: 45.0 kg (Ref. 3403)
Ραχιαίες άκανθες (συνολικά) : 8 - 9; Μαλακές ραχιαίες ακτίνες (συνολικά) : 16 - 18; Εδρικές άκανθες: 1 - 2; Μαλακές εδρικές ακτίνες: 12 - 14; Σπόνδυλοι: 31. Body almost uniformly dark brown, becoming almost black with age. Pelvic fins well developed, with I spine and 5 soft rays (Ref. 9784). Prominent lateral keel on caudal peduncle, flanked by smaller accessory keels above and below (Ref. 26938).
Occurs mainly over the continental slope, down to 200 m and more (Ref. 6181). Migrates upward at night (Ref. 6181). Feeds on squid, crustaceans and a wide variety of fishes (Ref. 6181). Flesh oily and may have purgative properties (Ref. 9784). Sometimes caught by tuna long-liners (Ref. 26938). Marketed frozen and as fish cakes in Japan (Ref. 9302).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
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 Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
αλιεία: περιορισμένης εμπορικότητας; αλιεία αναψυχής: ναί
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 7 - 14.4, mean 9.9 °C (based on 642 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00608 - 0.02377), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 4.3 ±0.67 se; based on food items.
Ελαστικότητα (Ref.
120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Assuming tm=4-5).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (39 of 100).
Nutrients (Ref.
124155): Calcium = 7.33 [3.81, 15.92] mg/100g; Iron = 0.279 [0.128, 0.578] mg/100g; Protein = 17.1 [14.9, 19.0] %; Omega3 = 0.33 [0.19, 0.60] g/100g; Selenium = 29.2 [12.6, 64.6] μg/100g; VitaminA = 11.8 [2.8, 50.1] μg/100g; Zinc = 0.25 [0.17, 0.37] mg/100g (wet weight);
