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Polypteriformes (Bichirs) >
Polypteridae (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335).
Eponymy: Stephan Ladislaus Endlicher aka István László Endlicher (1804–1849) was an Austrian botanist and numismatist who was appointed Professor of the University of Vienna and was Director of the university’s botanical gardens (1840). [...] (Ref. 128868), visit book page.
More on author: Heckel.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين نزديك كف زي; رود رو (Ref. 51243). Tropical
Africa: Nile River, Chad basin, Niger River, Volta River, Bandama River, Comoé River and Ouémé River (Ref. 2835, 81263).
طول در اولین بلوغ / اندازه / وزن / سن
بلوغ: Lm 32.0  range ? - ? cm
Max length : 65.5 cm SL جنس نر / بدون خواص جنسي; (Ref. 123661); بيشينه وزن گزارش شده: 3.4 kg (Ref. 123661)
خارهاي باله پشتي (کل) : 11 - 14; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 9 - 18; مهره ها: 53 - 57. Diagnosis: lower jaw longer than upper jaw; pectoral fin reaching first dorsal ray (Ref. 2835, 42908, 81263). 11-14 dorsal finlets (Ref. 28714, 122071), the first situated above the pectoral fins; head flat or slightly concave between the eyes but not convex (Ref. 28714). Third dorsal scale row the first to reach ventral midline; predorsal length short, 21.7-27.4 % SL; few (4-5, rarely 6), broad (more than 3 scale rows wide), dark transverse bars extending from dorsum to middle of flank by confluence of dorsal and lateral blotches sometimes including ventrolateral markings (Ref. 122071).
Body shape (shape guide): elongated; Cross section: compressed.
Facultative air-breathing (Ref. 126274); Inhabits swamps and rivers. Essentially piscivorous (Ref. 9695, 28714). Diet includes snails and crustaceans (Ref. 30488).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Gosse, J.P. and J. Daget, 2003. Polypteridae. p. 101-112. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81263)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5003 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00273 - 0.00698), b=3.07 (2.93 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
سطح تروفیک (مرجع
69278): 3.8 ±0.63 se; based on food items.
جهندگی (مرجع
120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.).
آسیبپذیری ماهیگیری (Ref.
59153): Moderate to high vulnerability (52 of 100).
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مواد مغذی (Ref.
124155): Calcium = 126 [54, 243] mg/100g; Iron = 1.55 [0.93, 2.46] mg/100g; Protein = 18 [17, 19] %; Omega3 = 0.275 [0.116, 0.669] g/100g; Selenium = 69.6 [31.2, 151.4] μg/100g; VitaminA = 33.5 [12.8, 91.3] μg/100g; Zinc = 1.26 [0.86, 1.81] mg/100g (wet weight);