Классификация / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335).
Eponymy: Astyanax was the son of Hector in Greek mythology. See Homer’s Iliad for details. The reasoning for its use for a genus of characins is not explained. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный донно-пелагический. Tropical
South America: tributaries of the Rio Aricá-Mirim, Rio Cuiabá basin in Mato Grosso State, Brazil.
Size / Вес / Возраст
Maturity: Lm ?  range ? - ? cm
Краткое описание
определительные ключи | морфология | морфометрия
Distinguished from other species of Astyanax scabripinnis species complex by a combination of the following characters: 8-9 gill rakers on the upper limb of first branchial arch; 0-1 tooth on the maxillary; 17-21 branched anal-fin rays, 35-37 perforated lateral line scales; and two humeral spots (Ref. 86404).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Tagliacollo, V.A., R. Britzke, G.S.C. Silva and R.C. Benine, 2011. Astyanax pirapuan: a new characid species from the upper Rio Paraguay system, Mato Grosso, Central Brazil (Characiformes, Characidae). Zootaxa 2749:40-46. (Ref. 86404)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-1)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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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=0.01096 (0.00493 - 0.02437), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).