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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Austrolebias: Composed from Austro = the south + see under Lebias; nigrofasciatus: Name from the Latin nigrum for black and fasciatus meaning with stripes, in reference to the color pattern of the male specimens of this species (Ref. 44045).
More on authors: Costa & Cheffe.
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة; غير مهاجرة. Tropical
South America: inner drainages between laguna dos Patos and lagoa Mirim, southern Brazil.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 5.8 cm TL ذكر/ مختلط الجنس; (Ref. 96654); أعلا وزن تم نشرة: 2.60 g (Ref. 96654)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 0; الأشعة الظهرية الناعمة (المجموع) : 16 - 23; شوكة شرجية: 0; أشعه شرجية لينه: 18 - 26; فقرات: 27 - 30. Two apomorphic color patterns, body bright gray with dark gray to black stripes in males (versus light gray or no stripes) and a vertically paired black blotch on caudal peduncle of juveniles and females (versus small spots irregularly arranged, or a single round dorsally positioned spot, or no spots on caudal peduncle). Males with light blue stripes parallel to rays on the basal half of unpaired fins and a black blotch anteriorly bordered by a narrow blue line on posterior portion of dorsal and anal fins. Scales on longitudinal series 26-28, supraorbital neuromasts 16-19, pharyngobranchial teeth 2-5. Dorsal fin origin anterior to anal fin origin in females. Caudal fin rounded.
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Costa, W.J.E.M. and M.M. Cheffe, 2001. Three new annual fishes of the genus Austrolebias from the Laguna dos patos system, southern Brazil, and a rediscription of A. adloffi (AHL) (Cyprinodontiformes: rivulidae). Comun. Mus. Ciênc. Tecnol. PUCRS, Sér. Zool. Porto Alegre 14(2):179-200. (Ref. 44045)
IUCN Red List Status (Ref. 130435)
في خطر (EN) (B1ab(ii,iii)); Date assessed: 07 November 2018
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00556 - 0.01718), b=3.20 (3.05 - 3.35), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.2 ±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).
