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Scombriformes (Mackerels) >
Scombridae (Mackerels, tunas, bonitos) > Gasterochismatinae
Etymology: Gasterochisma: Greek, gaster = stomach + Greek, chiasma = marked with the sign of "X" (Ref. 45335).
More on author: Richardson.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
marino pelagic-oceanic; oceanodromo (Ref. 51243); rango de profundidad 200 - ? m (Ref. 9563). Subtropical; 8°C - 15°C (Ref. 168); 19°S - 55°S, 180°W - 180°E (Ref. 168)
Circumglobal in southern temperate waters.
Tamaño / Peso / Age
Madurez: Lm ? range ? - ? cm
Max length : 164 cm FL macho / no sexado; (Ref. 168)
Short description
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 17 - 18; Radios blandos dorsales (total) : 9 - 12; Espinas anales: 0; Radios blandos anales: 11 - 13; Vértebra: 44. Pelvic fins enormous in juveniles, longer than head length. Pelvic fins fitting into a deep ventral groove at all sizes. Interpelvic process tiny and bifid. No anterior corselet. Swim bladder present with two anterior projections that extend into the back of the skull. The morphological adaptations required for maintaining high brain and retinal temperatures are discussed in Ref. 11221.
Body shape (shape guide): fusiform / normal; Cross section: oval.
Occurs in deep oceanic waters (Ref. 9563), most abundant in waters of 8° to 10°C. Stomach contents of the specimen from north of the Hawaiian Archipelago include onychoteuthids, ommastrephid squid, vertebrae and fin rays from an unidentified fish, bird feathers and parasitic nematodes (Ref. 11006). Taken as longline by-catch by Japanese fishing for Thunnus maccoyii.
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Collette, B.B. and C.E. Nauen, 1983. FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesquerías: escaso valor comercial; pesca deportiva: si
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Preferred temperature (Referencia
123201): 10.2 - 15.9, mean 11.7 °C (based on 22 cells).
Phylogenetic diversity index (Referencia
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 4.4 ±0.57 se; based on food items.
Resiliencia (Referencia
120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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Nutrients (Ref.
124155): Calcium = 28.4 [15.9, 50.2] mg/100g; Iron = 1.3 [0.8, 2.2] mg/100g; Protein = 22.7 [20.5, 24.6] %; Omega3 = 0.397 [0.256, 0.622] g/100g; Selenium = 35.7 [20.8, 64.7] μg/100g; VitaminA = 11.5 [4.4, 31.5] μg/100g; Zinc = 0.443 [0.319, 0.627] mg/100g (wet weight); based on
nutrient studies.
