Classification / Names
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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Glandulocaudinae
Etymology: weitzmani: Lophiobrycon: Greek lophia = crest (in reference to the elongate adipose fin in mature males).
weitzmani: Dedicated to Stanley H. Weitzman for his work on Neotropical Characiformes, especially on the subfamily Glandulocaudulinae (Cha.
Eponymy: Dr Stanley Howard Weitzman (1927–2017) was an American ichthyologist who was Research Scientist Emeritus, Division of Fishes, Department of Invertebrate Zoology, at the National Museum of Natural History, Smithsonian and a professor at George [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / profondeur / distribution range
Écologie
; eau douce benthopélagique; pH range: 6.9 - 7.0. Tropical; 19°C - 21°C (Ref. 52251); 20°S - 21°S
South America: Upper Paraná River basin (Brazil).
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 2.9 cm SL mâle / non sexé; (Ref. 52251); 2.7 cm SL (female)
Most of the specimens were caught in a flooded/marshy area draining into the stream, with little current on a muddy bottom with a large amount of decomposing litter. Few specimens were caught in the stream itself, in a margin area of slower current under riparian vegetation over a bottom of rocks, pebbles and sand, with submerged litter only on the bottom of the larger and deeper pools. The species eats mainly aquatic and terrestrial arthropods. Sexual dimorphism (Ref. 52251).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Castro, R.M.C., A.C. Ribeiro, R.C. Benine and A.L.A. Melo, 2003. Lophiobrycon weitzmani, a new genus and species of glandulocaudine fish (Characiformes: Characidae) from the rio Grande drainage, upper rio Paraná system, southeastern Brazil. Neotrop. Ichthyol. 1(1):11-19. (Ref. 52251)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-1)
Menacé (EN) (B2ab(ii,iii)); Date assessed: 07 November 2018
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Réf.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00443 - 0.02057), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.3 ±0.42 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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