التصنيف / Names
الأسماء الشائعة | مرادفات | Catalog of Fishes(جنس, الانواع) | ITIS | CoL | WoRMS | Cloffa
>
Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Nematocharax: Greek, nemas, -atos = filament + Greek, charax = a marine fish without identification (Ref. 45335); costai: Named for Wilson Costa, notably known for his great contribution in Ichthyology and for his main role in planning the expedition and first to recognize the new species in the field.
Eponymy: Dr Wilson Jose Eduardo Moreira da Costa is a Brazilian biologist and ichthyologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
South America: Cambiriba Stream, Balneário Guaíra, middle Contas River basin in northeastern Brazil.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm SL ذكر/ مختلط الجنس; (Ref. 93323)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
فقرات: 33. Distinguished by having the following unique combination of characters: dorsal, anal and pelvic fins with elongated branched rays; two rows of premaxillary teeth in adults, and an almost complete row of teeth along the free ventral maxillary border. Differs from its unique congener, Nematocharax venustus, by having the following characters: absence of hooks or spinules on dorsal and pelvic-fins (vs. presence); five anal-fin rays with spinules (vs. more than seven rays); presence of a long dark pink horizontal mark on the caudal peduncle (vs. absence); five supraneurals (vs. four or fewer); pelvic-fin filament yellow (vs. pale rosy) (Ref. 93323).
Occurs in sandy bottom fast running water stream, with about 7 m width, 1 m depth and pale brown and turbid water. Found under marginal vegetation (Ref. 93323).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Bragança, P.H.N., M.A. Barbosa and J.L. Mattos, 2013. A new Nematocharax species from the middle Contas River basin, northeastern Brazil (Characiformes: Characidae). Verteb. Zool. 63(1):3-8. (Ref. 93323)
IUCN Red List Status (Ref. 130435: Version 2024-1)
استخدامات بشرية
أدوات
تقارير خاصة
Download XML
مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00683 - 0.03057), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
