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Scombriformes (Mackerels) >
Gempylidae (Snake mackerels)
Etymology: Thyrsitops: Greek, thyrsites, -ou = stalk of a plant, an ornament like a pine cone borne by Bacchus + Greek, ops = appearance (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser benthopelagisch; tiefenbereich 30 - 350 m (Ref. 36453). Subtropical; 15°S - 43°S, 77°W - 40°W (Ref. 6181)
Southwest Atlantic: off Rio de Janeiro (Ref. 47377), southern Brazil, Uruguay and Argentina. Southeast Pacific: off Chile.
Length at first maturity / Size / Gewicht / Alter
Maturity: Lm ?, range 25 - ? cm
Max length : 40.0 cm SL Männchen/unbestimmt; (Ref. 6181); common length : 25.0 cm SL Männchen/unbestimmt; (Ref. 6181)
Rückenflossenstacheln (insgesamt) : 17 - 18; Rückenflossenweichstrahlen (insgesamt) : 13 - 15; Afterflossenstacheln: 1; Afterflossenweichstrahlen: 15 - 17; Wirbelzahl: 33. Lateral line single, slightly curving anteriorly, then fairly straight and oblique. Body is dark blue with metallic tint (Ref. 6181).
Mesobenthopelagic (Ref. 47377). Inhabits the continental slope (Ref. 6181). Feeds on small fishes (Ref. 6181) and euphausiids (Ref. 47377). Since 1980, no catches have been reported, except for 21 t caught in 1990 by Argentina (Ref. 6181). Good for smoked fish and fish and chips (Ref. 6181).
Life cycle and mating behavior
Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | 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)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Estimates based on models
Preferred temperature (Ref.
123201): 7.5 - 19.8, mean 15 °C (based on 72 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00392 - 0.01279), b=2.95 (2.79 - 3.11), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.63 se; based on food items.
Generation time: 3.1 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Assuming tm=2-4).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (44 of 100).
Nutrients (Ref.
124155): Calcium = 56.1 [28.8, 110.9] mg/100g; Iron = 0.937 [0.484, 1.779] mg/100g; Protein = 17.8 [15.7, 19.7] %; Omega3 = 0.418 [0.265, 0.639] g/100g; Selenium = 35.2 [19.6, 65.3] μg/100g; VitaminA = 29 [12, 80] μg/100g; Zinc = 0.69 [0.52, 0.94] mg/100g (wet weight);
