Классификация / Names
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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Diapominae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335).
Environment: milieu / climate zone / пределы глубины / distribution range
экология
; пресноводный донно-пелагический; пределы глубины 0 - 2 m (Ref. 52417). Subtropical
South America: Rio Iguazú basin, Argentina.
Size / Вес / Возраст
половая зрелость: Lm ? range ? - ? cm
Max length : 6.8 cm SL самец/пол неопределен; (Ref. 111771); наибольший вес (опубликованные данные): 6.70 g (Ref. 111771)
Краткое описание
определительные ключи | морфология | морфометрия
Differs from all congeneric species by the combination of the following characters: premaxilla with 4-6 teeth on the outer row, teeth aligned and tricuspidate or tetracuspidate, maxillary teeth 3-4 and usually pentacuspidate, 18-21 branched anal-fin rays, lateral line with 36-38 perforated scales, a short peduncle (11.6-13.3% SL), a ventrally elongated black humeral spot, a very faint second humeral spot and a narrow black lateral band (Ref. 52417).
Collection sites have rapids with clear flowing water, pools and some areas of slow current. Bottom substrate includes mud, sand and mostly stones. Water depth ranges from 0.40-2m and temperate of the water near surface during summer is about 26° C (Ref. 52417).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Casciotta, J.R., A.E. Almiron and M.D.L.M. Azpelicueta, 2004. Bryconamericus ikaa, a new species from tributaries of the río Iguazú in Argentina (Characiformes, Characidae). Ichthyol. Explor. Freshwat. 15(1):61-66. (Ref. 52417)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-1)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Phylogenetic diversity index (ссылка
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00407 - 0.02241), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (ссылка
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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