Classification / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Jupiaba: An indigenous word from Brazil, in the region where Angela (Ichthyologist) was born and discovered several new fishes. (Personal communication from Barry Chernoff, Curator Fishes/Museum of Chicago; iasy: From the tupi îasy, the goddess of the moon in the Brazilian Tupi-indians’ mythology. This epithet is given in allusion to the crescent-shaped humeral blotch of Jupiaba iasy. A noun in apposition.
Eponymy: îasy is the goddess of the moon in the mythology of the Brazilian Tupi people. The epithet was given “in allusion to the crescent-shaped humeral blotch” of this species. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Tầng nổi. Tropical; 4°S - 10°S, 55°W - 57°W
South America: Brazil. Known from rio Teles Pires and rio Jamanxim, tributaries of rio Tapajós and from rio Aripuanã, in the rio Madeira drainage (Ref. 82468).
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.7 cm SL con đực/không giới tính; (Ref. 82468)
Short description
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Jupiaba iasy is distinguished from J. acanthogaster, J. atypindi, J. keithi, J. maroniensis, J. meunieri, J. minor, J. pinnata, and J. poekotero by having teeth with the central cusp distinctly larger than the lateral cusps and dentary teeth abruptly decreasing in size posteriorly (vs. teeth cusps similar in size and dentary teeth gradually decreasing in size posteriorly). The new species differs from J. abramoides, J. anteroides, J. apenima, J. asymmetrica, J. pirana, J. polylepis, J. poranga, J. potaroensis, J. yarina, and J. zonata by having 34–35 lateral line scales (vs. 39–66). It can be further distinguished from J. polylepis, by having 19–21 branched anal-fin rays, horizontal eye diameter 42.1–45.8% and clearer overall body scales (vs. 24–28 branched anal-fin rays, eye diameter 28.6–41.8%, and overall body darker). Jupiaba iasy can also be distinguished from J. elassonaktis, J. essequibensis, J. mucronata, and J. scologaster (as well as all the aforementioned species) by its color pattern that consists of a single posteriorly displaced dark moon-shaped and vertically elongated humeral blotch, encompassing the first 5 to 7 lateral line scales, extending vertically through four longitudinal scales series above lateral line and two series below it (vs. longitudinally elongated
humeral blotch in J. mucronata, and two humeral blotches in J. essequibensis, J. elassonaktis, and J. scologaster), and an inconspicuous dark spot over the proximal portion of the medial caudal fin rays (vs. caudal spot inconspicuous in J. essequibensis, and J. elassonaktis and completely absent in J. mucronata and J. scologaster). Jupiaba iasy is distinguished from J. ocellata by having 19–21 branched anal-fin rays (vs. 23–27), 8–10 predorsal scales arranged in a regular row (vs. 10–12, irregularly arranged), six longitudinal series of scales above lateral line (vs. 8–8,5), and four series below it (vs. 6–7), lower body depth (32.3–36.1%,X=34.1% SL vs. 36.4–50.0%, X=41.2% SL), and lack of filamentous first dorsal and anal-fin rays (vs. filamentous rays present) (Ref. 82468).
Life cycle and mating behavior
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Netto-Ferreira, A.L., A.M. Zanata, J.L.O. Birindelli and L.M. Sousa, 2009. Two new species of Jupiaba (Characiformes: Characidae) from the rio Tapajós and rio Madeira drainages, Brazil, with an identification key to species of the genus. Zootaxa 2262:53-68. (Ref. 82468)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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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=0.01288 (0.00577 - 0.02877), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
