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Perciformes (Perch-likes) >
Istiophoridae (Billfishes)
Etymology: Tetrapturus: Greek, tetra = four + Greek, pteron, fin, wing (Ref. 45335). More on author: Robins.
محيط زيست / آب و هوا _ اقليم / Range
بوم شناسي
; دريايي; اقیانوس رو (Ref. 51243); تغييرات عمق 0 - 200 m (Ref. 43), usually 100 - ? m (Ref. 4770). Subtropical, preferred 26°C (Ref. 107945); 44°N - 33°S, 98°W - 17°E (Ref. 43)
Atlantic Ocean: widely distributed in offshore waters, much more densely so in the western than in the eastern Atlantic. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 254 cm FL جنس نر / بدون خواص جنسي; (Ref. 40637); common length : 165 cm OT جنس نر / بدون خواص جنسي; (Ref. 43); بيشينه وزن گزارش شده: 58.0 kg (Ref. 40637)
خارهاي باله پشتي (کل): 0; شعاع نرم باله پشتي (کل): 50-57; خارهاي باله مخرجي 0; شعاع نرم باله مخرجي: 18 - 21; مهره ها: 24. Blue-black above, silvery white splattered with brown on the sides, silvery white below; dorsal fins dark blue; pectorals blackish brown, occasionally with tinges of greyish white; pelvic fins blue-black with a black fin membrane; 1st anal fin dark blue with silvery white at base; 2nd anal fin blackish brown.
Oceanic species, chiefly found in offshore waters, usually above the thermocline. Feed mainly on pelagic fishes and squids (Ref. 4770). Females probably spawn once a year (Ref. 4770). Marketed frozen.
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Maturation seems to occur at the same time rather than in the same season both in the northern and southern hemisphere, which could be suggestive of homogeneity of the population of this species. Females probably spawn once a year (Ref. 4770).
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)
وضعيت در فهرست قرمز IUCN (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك; ماهي ها ي سرگرم كننده: بله
اطلاعات بيشتر
مراجعآبزي پرورينمايه آبزي پرورينژادهاژنتيكتواتر آلل هاوارثبيماري هافرآوریMass conversion
همكارانعکس هاStamps, Coinsصداهاسيگواتراسرعتنوع شناگریمنطقه آبششيOtolithsمغزهابینایی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5630 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref.
69278): 4.4 ±0.4 se; Based on diet studies.
جهندگی (Ref.
69278): متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Assuming tm=2-4).
آسيب پذيری (Ref.
59153): Moderate to high vulnerability (49 of 100) .
