Common names from other countries
Issue
No recent work, see original description.
Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный донно-пелагический; мигрирует в реке (Ref. 51243). Tropical
South America: Tributaries of middle and lower Amazon basin, including Rios Trombretas, Jari, Tapajós, Xingu, Tocantins, and in the coastal rivers of Guyana, Suriname, Fr Guiana; Rios Araguari and Amapá, state of Amapá, Brazil; lower reaches of Río Orinoco, Venezuela.
Length at first maturity / Size / Вес / Возраст
Maturity: Lm 22.0, range 22 - 22 cm
Max length : 100.0 cm SL самец/пол неопределен; (Ref. 12225); наибольший вес (опубликованные данные): 40.0 kg (Ref. 12225)
Frequently occurs in counter current zones of principal rivers and creeks. Feeds mainly on fish but also on other animals that fall into the water like small terrestrial invertebrates. Is active at dusk and at night. Reproduction takes place at the onset of the rainy season from December to March. Depending on the size, the female can carry around 6,000 to 60,000 eggs (Ref. 12225). Known for the quality of its flesh (Ref. 27188).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Planquette, P., P. Keith and P.-Y. Le Bail, 1996. Atlas des poissons d'eau douce de Guyane. Tome 1. Collection du Patrimoine Naturel Volume 22, MNHN, Paris & INRA, Paris. 429 p. (Ref. 12225)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-2)
CITES (Ref. 131153)
Not Evaluated
Угроза для людей
Harmless
Использование человеком
рыболовство: коммерческий; аквариум: коммерческий
дополнительная информация
инструменты
Специальные отчеты
Скачать в формате XML
ресурсы в Интернет
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00447 - 0.01229), b=3.13 (2.98 - 3.28), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.55 se; based on food items.
устойчивость к внешним воздействиям (Ref.
120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (tm=1; Fec=6,000).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (73 of 100).