分類 / Names
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Siluriformes (Catfishes) >
Diplomystidae (Velvet catfishes)
Etymology: Olivaichthys: Latin, oliva = olive + Greek, ichthys = fish (Ref. 45335).
Eponymy: Dr Rubén Oliva (1950–2010) was a naturalist and agronomist, whose doctorate was awarded by the University of Oregon. [...] (Ref. 128868), visit book page.
Issue
First regarded as a valid species in Azpelicueta (1994a), redescribed in Azelpelicueta (1994b).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の. Temperate
South America: Colorado River and tributaries; Desaguadero-Salado basin, including the rivers San Juan, Mendoza, Tunuyán and temporary environments connected to those rivers.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 21.8 cm SL オス/雌雄の選別がない; (Ref. 26662)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 2; 背鰭 (合計) : 6; 肛門の骨: 4 - 5; 臀鰭: 9 - 11; 脊つい: 41 - 44.
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628. (Ref. 58032)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6328 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00178 - 0.01174), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).