Classification / Names
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Characiformes (Characins) >
Iguanodectidae ("Lizard bite tetras")
Etymology: Bryconops: Greek, bryko = to bite + Greek, ops = appearance (Ref. 45335); tocantinensis: Name refers to the rio Tocantins drainage, where this species is currently known to occur. An adjective.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি সমুদতলে ভাসমান বেনথোপেলাজিক; গভীরতার পরিসীমা ? - 2 m (Ref. 109891). Tropical
South America: Rio Conceição, a tributary to the rio Palma, upper rio Tocantins drainage in Tocantins, Brazil.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.5 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 109891)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 10 - 11; পায়ূর নরম পাখনা্তুন্ড: 25 - 29; কশেরুকা : 40. Bryconops tocantinensis is distinguished from all species of Bryconops, except
B. humeralis and B. vibex by the color pattern in vivo (dorsal, adipose, and caudal fins entirely orange). It differs from B. humeralis and B. vibex by the lack of a humeral spot and by the lack of maxillary teeth (vs. a single humeral spot present and 1-3 maxillary teeth on both sides present). It can be further diagnosed from B. vibex by having 38-41 perforated lateral line scales (vs. 44-46) (Ref. 109891).
Inhabits stream and lotic shallow areas (depth up to 1.5 m) with riparian vegetation composed by trees and shrubs. The stream is characterized by transparent water and sandy, stony, and rocky bottom. Occurs syntopically with Eigenmannia trilineata, Hoplerythrinus unitaeniatus,
Astyanax cf. goyacensis, Knodus cf. breviceps, Knodus sp., and Ancistrus sp. (Ref. 109891).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Guedes, T.L.O., E.F. Oliveira and P.H.F. Lucinda, 2016. A new species of Bryconops (Ostariophysi: Characiformes: Characidae) from the upper rio Tocantins drainage, Brazil. Neotrop. Ichthyol. 14(2):1-8. (Ref. 109891)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
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=0.01072 (0.00453 - 0.02537), b=3.01 (2.81 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
