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> Characiformes (Characins) > Characidae (Characins; tetras) > Stevardiinae
Etymology: metae: Specific name refers to the Meta State in eastern Colombia, where the new species was collected..

Environment: milieu / climate zone / depth range / distribution range экология

; пресноводный демерсальный; pH range: 7.1 - 7.6; пределы глубины 0 - 3 m (Ref. 91745). Tropical

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South America: Río Güejar system in Meta State, La Macarena Mountains, Orinoco basin, Colombia.

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 1.9 cm SL самец/пол неопределен; (Ref. 91745)

Краткое описание определительные ключи | морфология | морфометрия

позвонки: 40 - 41. Diagnosed from other species of the genus Tyttocharax by the presence of bony hooks on the pectoral and caudal-fin rays (vs. absence). Differs from Tyttocharax madeirae and Tyttocharax cochui by the absence of adipose fin (vs. presence), in having larger bony hooks on the anal fin than on the rays of the pelvic fins (vs. bony hooks of the same size on the rays of those fins). Can be separated from Tyttocharax cochui in having i,5-6 pectoral-fin rays (vs. i,7); from Tyttocharax tambopatensis by absence of a sexually dimorphic color pattern in life (vs. presence of sexually dimorphic color pattern, males have bright orange abdomens), by having 4 scales rows between anal-fin origin and lateral line (vs. 6), by the 4 scale rows between pelvic-fin and lateral line (vs. 6), by the number of 5-6 branched pectoral-fin rays (vs. 7); by iii unbranched dorsal-fin rays (vs. ii) and distance between the dorsal and anal-fin origins, 22.3% to 32.2% SL (vs. 38.0-41.0% SL) (Ref. 91745).

Found in streams characterized by relatively rapid water current, running over rocky and sandy bottoms at altitudes between 264- 282 m a.s.l., high dissolved oxygen (5.7-7.1 mg/l) and having tea colored water with usually high transparency (Ref. 91745).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Основная ссылка Upload your references | ссылки | координатор | соавторы

Román-Valencia, C., C.A. García-Alzate, R.I. Ruiz-C. and D.C.B. Taphorn, 2012. A new species of Tyttocharax (Characiformes: Characidae: Stevardiinae) from the Güejar River, Orinoco River Basin, Colombia. Neotrop. Ichthyol. 10(3):519-525. (Ref. 91745)

Статус Красного Списка МСОП (Ref. 130435)

уязвимый; см. Красный Список МСОП (VU) (B2ab(iii)); Date assessed: 12 October 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Tyttocharax metae Román-Valencia, García-Alzate, Ruiz-C. & Taphorn, 2012