Actinopterygii (Straalvinnigen) >
Perciformes (Perch-likes) >
Gempylidae (Snake mackerels)
Etymology: Diplospinus: Greek, diploos = twice + Latin, spina = spine, thorn (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; marien benthopelagisch; diepteverspreiding 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.
Length at first maturity / Size / Gewicht / Leeftijd
Maturity: Lm ?, range 16 - ? cm
Max length : 33.0 cm SL mannelijk/geslacht niet bekend; (Ref. 9784); common length : 20.0 cm SL mannelijk/geslacht niet bekend; (Ref. 6181)
Dorsale stekels (totaal): 30 - 36; Dorsale zachte stralen (totaal): 35-44; Anale stekels 2; Anale zachte stralen: 28 - 35; Wervels: 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.
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)
Status op de Rode Lijst van het IUCN (Ref. 120744)
CITES (Ref. 118484)
Not Evaluated
Gevaarlijk voor mensen
Harmless
Gebruik door de mens
Visserij: visserij voor eigen gebruik
Meer informatie
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Estimates based on models
Preferred temperature (Ref.
115969): 8.7 - 19.2, mean 13.1 (based on 808 cells).
Phylogenetic diversity index (Ref.
82805): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref.
69278): 3.5 ±0.52 se; Based on food items.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Fec=1,200).
Kwetsbaarheid (Ref.
59153): Low to moderate vulnerability (33 of 100) .
