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Characiformes (Characins) >
Anostomidae (Headstanders)
Etymology: Leporinus: Latin, lepus, leporis = rabbit (Ref. 45335).
Eponymy: Dr William James (1842–1910) was a physician, psychologist and philosopher, regarded as perhaps the USA’s greatest philosopher. [...] (Ref. 128868), visit book page.
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar pelagis, permukaan. Tropical
South America: rio Amazonas, rio Solimões, rio Madeira, río Ucayali and lower portion of their tributaries at the central Amazonian region in Brazil and Peru.
Size / Weight / umur
Maturity: Lm ? range ? - ? cm
Max length : 15.5 cm SL jantan/; (Ref. 96869)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 10 - 11; Sirip dubur lunak: 9. Leporinus jamesi can be diagnosed from other congeners, except L. apollo, L. affinis, L. amazonicus, L. brunneus, L. cylindriformis, L. desmotes, L. falcipinnis, L. fasciatus, L. geminis, L. macrocephalus, L. muyscorum, L. niceforoi, L. nigrotaeniatus, L. obtusidens, L. pearsoni, L. pitingai, L. trifasciatus, L. unitaeniatus, and L. yophorus, by possessing 42 or more scales on the lateral line (vs. less than 42). It differs from L. desmotes, L. falcipinnis, L. fasciatus, L. pearsoni, and L. yophorus by having dark midlateral blotches on body (vs. body with dark transversal bars), head without dark transversal bars (vs. head with a dark transversal bar between the contralateral orbits), and eight pelvic- branched rays (vs. nine). It can be separated from L. macrocephalus, L. muyscorum, L. obtusidens, and L. trifasciatus by having four teeth on the premaxilla and dentary (vs. three on each). It also differs from L. brunneus, L. cylindriformis, L. geminis, L. niceforoi, L. nigrotaeniatus, L. pitingai, and L. unitaeniatus by having medially dark marks on the pectoral and pelvic fins (vs. hyaline), a body with two dark midlateral blotches, the first one relatively large and conspicuous, and the second small and sometimes inconspicuous, and lacking or inconspicuous presence of a third blotch on the caudal peduncle (vs. three dark mid-lateral blotches in L. cylindriformis, L. geminis, L. niceforoi; a single midlateral stripe that is sometimes fragmented or inconspicuous in L. brunneus; body with a single incomplete mid-lateral stripe running from the vertical through the dorsal-fin origin to the caudal peduncle in L. nigrotaeniatus; approximately six transversally elongate midlateral blotches in L. pitingai; or a single midlateral stripe in L. unitaeniatus) . It is distinguished from L. amazonicus by having more than one dark midlateral blotch (vs. a single dark midlateral blotch posterior to opercle), 42 to 45 lateral line scales ( vs. 45 to 47); and three large transversal dark bars in front of the dorsal-fin origin in specimens measuring approximately 6 cm SL (vs. five or seven thin transversal bars) (Ref. 96869).
Distinct pairs breed on densely grown weedy places (Ref. 205).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
Distinct pairs breed on densely grown weedy places (Ref. 205).
Garavello, J.C., H.A. Britski and J.L.O. Birindelli, 2014. Redescription of Leporinus jamesi (Characiformes: Anostomidae), a poorly known species of Leporinus from the lowlands of the central Amazon, Brazil. Neotrop. Ichthyol. 12(2):317-326. (Ref. 96869)
Status IUCN Red List (Ref. 130435: Version 2024-2)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
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=0.01096 (0.00533 - 0.02257), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.5 ±0.1 se; based on size and trophs of closest relatives
Daya lenting (Ref.
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
