分類 / Names
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Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Astrodoradinae
Etymology: Physopyxis: Greek, physa = bellows + Greek, pyxis,-idos = box (Ref. 45335); ananas: Named from the generic name of the pineapple, Ananas, in allusion to stout body and spiny appearance of the species due to presence of additional row(s) of spines on lateral plates.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の. Tropical
South America: throughout the lowlands in the entire Amazon (including rio Negro) and rio Essequibo basins.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 2.2 cm SL オス/雌雄の選別がない; (Ref. 56903)
Inhabits shallow waters where organic debris accumulates, such as submerged litter banks (Ref. 56903).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Sousa, L.M. and L.H. Rapp Py-Daniel, 2005. Description of two new species of Physopyxis and redescription of P. lyra (Siluriformes: Doradidae). Neotrop. Ichthyol. 3(4):625-636. (Ref. 56903)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
Human uses
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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 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00639 - 0.03584), b=2.76 (2.56 - 2.96), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (Ref.
69278): 2.9 ±0.2 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).