分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Atheriniformes (Silversides)
銀漢魚目 (Silversides) >
Atherinopsidae (Neotropical silversides)
擬銀漢魚科 (Neotropical silversides) > Atherinopsinae
Etymology: Odontesthes: Greek, odous = teeth + Greek,esthes = suit, something used to wrap (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的.
South America: upper rio Uruguay and rio Passo Fundo in Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 16.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 116661)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
臀鰭軟條: 15 - 17. Odontesthes yucuman is diagnosed from other species of Odontesthes, except members of the O. perugiae species-group (O. bicudo, O. ledae, O. mirinensis, O. piquava and O. perugiae) by having the following combination of characters: teeth of the outer row on dentary and premaxilla shorter than those in the inner row (vs. teeth of outer row larger than those of inner row or teeth of outer and inner rows of equal size); origin of dorsal fin positioned over or posterior to anus (vs. anterior to anus); and 7 to 9 longitudinal scale rows above left and right lateral bands. It differs from O. bicudo, O. ledae, O. mirinensis, and O. piquava by having 19-25 lower branch gill rakers (vs. 26-29 in O. ledae, 24-29 in O. mirinensis, 25-31 in O. bicudo, and 27-28 in O. piquava); and from O. perugiae by the differences in the snout length (35.6-39.5, mean 37.7 vs. 28.6-37.4%, mean 32.2 of HL), and the distance between snout tip and posterior angle of labial ligament (31.3 -37.0, mean vs. 23.6 -33.1%, mean 28.2 of HL (Ref. 116661).
Collected from reservoirs or immediately downstream of three Hydroelectric Power Plants of the rio Uruguay basin (Itá, Machadinho and Monjolinho). Occurs sympatrically with O. bonariensis (Valenciennes) and O. humensis de Buen in the upper rio Uruguay (Ref. 116661).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Wingert, J.M., J. Ferrer and L.R. Malabarba, 2017. Review of the Odontesthes perugiae species group from Río de La Plata drainage, with the description of a new species (Atherinomorpha: Atherinopsidae). Zootaxa 4250(6):501-528. (Ref. 116661)
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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=0.00603 (0.00275 - 0.01321), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
