التصنيف / الأسماء
الأسماء الشائعة | مرادفات | Catalog of Fishes(جنس, الانواع) | ITIS | CoL | WoRMS | Cloffa
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Characiformes (Characins) >
Lebiasinidae (Pencilfishes) > Pyrrhulininae
Etymology: Nannostomus: Latin, nannus = small + Greek, stoma = mouth (Ref. 45335).
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
South America: Guyana, Bolivia and Brazil.
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 2.9 cm SL ذكر/ مختلط الجنس; (Ref. 94659)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
It is distinguished from its similar species Nannostomus nigrotaeniatus by having the following characters: sexual dischormatism not developed, with males and females having red spots on the dorsal, anal and vertral fins and on the base of the caudal lobes (vs. well developed, with males having ruby spots on the dorsal, anal, ventral fins and on the base of the caudal lobes while females having hyaline fins); primary horizontal stripe is narrower and somewhat higher primary horizontal stripe not entirely covering the inferior part of the peduncle and extending onto the basal third or half of the three first lower caudal rays (vs. relatively wide and somewhat lower, covering the lower part of the peduncle and ends on the caudal peduncle or is only a little bit on the caudal fin in N. nigrotaeniatus ); and secondary horizontal stripe somewhat higher, extending to the base of the adipose fin (vs. relatively weakly developed, lower situated and extending to the end of the peduncle in N. nigrotaeniatus). The absence of red stripe between primary and secondary horizontal band also differs this species from another closely related species N. trifasciatus which has one red stripe, but this is only visible in living specimens) (Ref. 94659).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Zarske, A., 2013. Nannostomus nigrotaeniatus spec. nov. - ein neuer Ziersalmler aus Venezuela (Teleostei: Characiformes: Lebiasinidae). Verteb. Zool. 63(2):125-137. (Ref. 94659)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
استخدامات بشرية
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مصادر علي الأنترنت
تقديرات تستند إلى النماذج
مؤشر التنوع الشُعبي الوراثي (مرجع 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00661 (0.00287 - 0.01523), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
مستوى غذائي (مرجع 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
ضعف الصيد (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |