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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: amanan: Named for the Amanã Sustainable Development Reserve, state of Amazonas, Brazil.
More on authors: Costa & Lazzarotto.
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة; نطاق العمق 0 - 1 m (Ref. 78702). Tropical
South America: Brazil.
الحجم / وزن / العمر
Maturity: Lm ?  range ? - ? cm
Max length : 2.8 cm SL ذكر/ مختلط الجنس; (Ref. 78702); 2.8 cm SL (female)
Collected from a flooded forest area adjacent to the igarapédo Baré and the channel connecting it to lago da Beleza, an oxbow lake in the floodplains of the igarapé Baré. The area is subjected to average water level variations between 10-12 m, that environmental conditions vary enormously. Sampling was done in November and January, where water was black with high transparency, with substrate composed by at about 0.2 to
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Costa, W.J.E.M. and H. Lazzarotto, 2008. Rivulus amanan, a new killifish from the Japurá river drainage, Amazonas river basin, Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 19(2):129-134. (Ref. 78702)
IUCN Red List Status (Ref. 130435: Version 2024-2)
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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 (0.00315 - 0.03034), b=3.03 (2.77 - 3.29), 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).