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Scombriformes (Mackerels) >
Gempylidae (Snake mackerels)
Etymology: Diplospinus: Greek, diploos = twice + Latin, spina = spine, thorn (Ref. 45335).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino benthopelagico; distribuzione batimetrica 50 - 1000 m (Ref. 9784). Deep-water; 42°N - 38°S, 180°W - 180°E
Atlantic, Indian and Pacific: in central water masses. Rather rare, but relatively abundant in the northwest and southeast Atlantic and southeast Pacific Ref. 6181).
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm ?, range 16 - ? cm
Max length : 33.0 cm SL maschio/sesso non determinato; (Ref. 9784); common length : 20.0 cm SL maschio/sesso non determinato; (Ref. 6181)
Spine dorsali (totale) : 30 - 36; Raggi dorsali molli (totale) : 35 - 44; Spine anali: 2; Raggi anali molli: 28 - 35; Vertebre: 57 - 64. Body is extremely elongate and compressed. Lower jaw extends anterior to upper jaw with a small conical dermal process. Upper jaw with 3 immovable and 3 or 4 movable fang-like teeth anteriorly. Lateral line situated closer to the ventral profile than the dorsal profile posteriorly. Color is silvery with narrow dark dotted lines along the body; the gill membranes are jet-black.
Body shape (shape guide): elongated; Cross section: compressed.
Oceanic, migrating upward at night to 100 to 200 m (Ref. 6181). Probably forming schools during daytime (Ref. 6181). Feed on crustaceans and small fish (Ref. 6181). Females mature at about 16 cm (Ref. 36731). Eggs and larvae are pelagic (Ref. 6766).
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: pesca di sussistenza
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00363 (0.00164 - 0.00803), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.5 ±0.52 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Fec=1,200). |
Vulnerabilità della pesca (Ref. 59153) |
Low to moderate vulnerability (32 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Unknown.
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