Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range
বাস্তুসংস্থান
সামুদ্রিক pelagic-oceanic; মহাসাগরে বিচরনক্ষম (Ref. 51243); গভীরতার পরিসীমা 0 - 200 m (Ref. 43). Deep-water; 46°N - 30°N, 6°W - 36°E (Ref. 43)
Mediterranean Sea: considerably abundant around Italy. No confirmed report from the Black Sea. No adults have been reported east of the Ionian Sea. Highly migratory species. Reportedly caught from the Aegean Sea (Pennetti, pers. comm.).
আকৃতি / ওজন / Age
পরিপক্কতা : Lm ? range ? - ? cm
Max length : 240 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 4770); common length : 200 cm OT পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 43); সবের্াচ্চ প্রকাশিত ওজন : 70.0 kg (Ref. 43)
This species is the most common istiophorid in the central basin of the Mediterranean and completes its life cycle inside this sea as far as is known to date. Probably swims in the upper 200 m water layer, generally above or within the thermocline. Travels in pairs, possibly corresponding to a feeding behavior. Feeds on fishes. Probably more widespread in the Mediterranean Sea and may have been identified as T. albidus by anglers and fishermen.
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Winter and spring might not be an unreasonable hypothesis for the spawning season of this species.
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 2025-1)
Threat to humans
Harmless
Human uses
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (সূত্র
123201): 13.7 - 19.3, mean 15.3 °C (based on 121 cells).
Phylogenetic diversity index (সূত্র
82804): PD
50 = 0.5630 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00195 - 0.01025), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (সূত্র
69278): 4.4 ±0.63 se; based on food items.
স্থিতিস্থাপক (সূত্র
120179): নিম্ন/ , সর্বনিম্ন প্রজন দ্বিগুনের সময় ৪.৪-১৪ বৎসর (Assuming tmax>10).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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Nutrients (Ref.
124155): Calcium = 16 [7, 36] mg/100g; Iron = 0.474 [0.234, 0.985] mg/100g; Protein = 18.7 [17.4, 19.9] %; Omega3 = 0.216 [0.106, 0.456] g/100g; Selenium = 19.9 [7.1, 55.8] μg/100g; VitaminA = 4.5 [0.8, 26.0] μg/100g; Zinc = 0.217 [0.142, 0.343] mg/100g (wet weight);
