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Characiformes (Characins) >
Characidae (Characins; tetras) > Characinae
Etymology: Phenacogaster: Greek, phenax, -akos = deceptive + Greek, gaster = stomach (Ref. 45335); nukak: Named after the environmental and cultural diversity of Nukak territory, on one side the great national reserve Nukak, whose main body of water is the Inírida River and one of the largest protected areas in Colombia (Camacho Peña, 2022), on the other side the resistance of the Nukak Maku people, for their fight against physical and cultural extinction, being a reminder of the territory and biodiversity that belongs to them.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar bentopelagis. Tropical
South America: Colombia.
Ukuran / Berat / umur
Kematangan: Lm ? range ? - ? cm
Max length : 4.3 cm SL jantan/; (Ref. 132565)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 8 - 9; Sirip dubur lunak: 32 - 34; vertebrata, bertulang belakang: 36. This species is distinguished from its congeners by the following characters: an incomplete lateral line; position of the humeral spot near the anterior origin of the base of the dorsal fin between the fifth and eighth ribs counted from the posterior limit of the pseudotympanum; differs from P. tegatus by a longer caudal peduncle 7.1-11.0% SL, 9.1% on average (vs. 4.7-7.8% SL, 6.0% on average), shorter maxillary length 19.0-33.6% HL, 29.6% on average (vs. 33.8-43.2% HL, 38.1% on average), and larger orbit diameter 32.2-43.8% HL, 38.3% on average (vs. 22.9-26.5% HL, 24.5% on average); differs from P. yari by the higher number of perforated scales in the lateral line 8-11 (vs. 6-7), circumpeduncular scales 11-12 (vs. 10), anal-fin rays 32-34 (vs. 29-32), pectoral-fin rays 12-14 (vs. 10-11); no bony hooks on the pelvic-fin rays on males; presence of hooks on pectoral-fin rays of males; caudal vertebrae 22 (Ref. 132565).
Cross section: compressed.
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Romero-Figueroa, A. and T.P. Carvalho, 2024. Four new species of Phenacogaster (Characiformes: Characidae) and a review of its diversity in Colombia. Ichthyol. Herpetol. 112(4):619-644. (Ref. 132565)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00627 - 0.03041), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Tingkat Trofik (Acuan
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Kerentanan Penangkapan Ikan (Ref.
59153): Low vulnerability (10 of 100).
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