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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: Parotocinclus: Greek, para in the side of + greek, ous, otis = ear + Greek, kygklos, ou = a fish (Ref. 45335); robustus: The specific name is from the Latin adjective robustus, meaning robust, referring to the strong and robust appearance of the fish.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の. Tropical
South America: upper and middle Rio São Francico basin in Brazil.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 4.2 cm SL オス/雌雄の選別がない; (Ref. 91034)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 1; 背鰭 (合計) : 7; 臀鰭: 6. Distinguished from all species of Parotocinclus, except P. prata, by its abdomen
completely devoid of dermal plates between the pectoral girdle and the anus. Differs from P. prata by having the ventral surface of the head behind the lower lip smooth, without rugosities in adults (vs. ventral surface of the head behind the lower lip highly rugose in adult specimens), and by having the postrostral plate 4 contacting the infraorbitals 3 and 4 (vs. postrostral plate 4 not contacting the infraorbital series). Can be further diagnosed from most congeners, except P. arandai, P. bahiensis, P. prata, and P. spilurus, by having the rostral plate not visible ventrally on the snout tip (vs. rostral plate visible ventrally on the snout tip); and from most congeners, except P. spilurus, P. cearensis, P. prata, P. jumbo, P. spilosoma, and P. cesarpintoi, by having the pectoral girdle covered by skin medially and exposed and supporting odontodes only laterally (vs. pectoral girdle exposed and supporting odontodes both medially and laterally) (Ref. 91034).
Body shape (shape guide): elongated.
Facultative air-breathing in the genus (Ref. 126274); Occurs in small to median-sized rivers with shallow water (0.4-1.5 m depth), slow to median-speed waterflow and clear to slightly turbid water running over a mixed bottom consisting of stones, gravel, sand and sometimes mud. Mostly found on the marginal vegetation (Ref. 91034).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Lehmann, A.P. and R.E. Reis, 2012. A new species of Parotocinclus (Siluriformes: Loricariidae) from the upper Rio São Francisco, Brazil. Zootaxa 3390:56-64. (Ref. 91034)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00434 - 0.02202), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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