Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
समुद्री; औशिनोड़िरोमस (Ref. 51243); गहराई सीमा 0 - 1830 m (Ref. 86942), usually 0 - 350 m (Ref. 89423). Subtropical; 43°N - 56°S, 20°E - 68°W
Indian and Pacific: tropical and temperate waters. Although some stray individuals are found in the Atlantic Ocean, this species is believed to have its spawning grounds and principal populations only in the Pacific and Indian Oceans. Highly migratory species.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 230 cm TL पुल्लिंग / अलिंग; (Ref. 9308); common length : 190 cm TL पुल्लिंग / अलिंग; (Ref. 9308); अधिकतम प्रकाशित वज़न: 52.0 kg (Ref. 43)
पृष्ठीय रीढ़ (सम्पूर्ण) : 0; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 51 - 57; गुदा कांटा: 0; ऐनल सौफट रेज़: 18 - 23. Dark blue above, blue splattered with brown on the sides, silvery white below; 1st dorsal fin plain dark blue, other fins brown or dark brown; anal fin bases with tinges of silvery white.
Oceanic and epipelagic, found above the thermocline (Ref. 9308). Feeds on fishes, cephalopods and crustaceans. Also caught as a by-catch of long lines with hooks intended for tuna. Marketed frozen and prepared as fish cakes and sashimi in Japan (Ref. 9308). Also prepared as sausages.
Spawning is believed to occur mainly during the winter months, especially in warm offshore currents with surface temperature of about 25°C.
Nakamura, I., 1985. FAO species catalogue. Vol. 5. Billfishes of the world. An annotated and illustrated catalogue of marlins, sailfishes, spearfishes and swordfishes known to date. FAO Fish. Synop. 125(5):65p. Rome: FAO. (Ref. 43)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
मात्स्यिकी: लघु वाणिज्य; आखेट मत्स्य: हां
साधन
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इंटरनेट स्रोत
Estimates based on models
Preferred temperature (Ref.
123201): 13.9 - 28.8, mean 26.2 °C (based on 5116 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5630 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00227 - 0.00920), b=3.21 (3.02 - 3.40), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.5 ±0.76 se; based on food items.
लौटाव (Ref.
120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (Assuming tm=2-4).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (45 of 100).
Nutrients (Ref.
124155): Calcium = 35.6 [15.9, 65.1] mg/100g; Iron = 1.07 [0.56, 2.01] mg/100g; Protein = 19.6 [18.3, 20.8] %; Omega3 = 0.296 [0.155, 0.612] g/100g; Selenium = 69.5 [32.9, 148.9] μg/100g; VitaminA = 5.16 [1.47, 18.59] μg/100g; Zinc = 0.345 [0.222, 0.536] mg/100g (wet weight);
