分類 / 名前
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: Pareiorhaphis: Greek, pareia = jaw + Greek, rhaphis = needle (Ref. 45335); torrenticola: Name torrenticola from Latin words 'torrens,-entis' and 'cola', meaning 'swift or violent stream, torrent, torrential' and 'dweller, inhabitant', in reference to its habit of living in very strong waters.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Brazil.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 4.5 cm SL オス/雌雄の選別がない; (Ref. 132467)
簡単な記述
検索表 | 形態学 | 形態計測学
脊つい: 28 - 29. This species is distinguished from its congeners by the following set of characters: anterior and median portions of lower lip with distinctly coalesced, longitudinally elongated papillae; a series of platelets covering the pectoral girdle between insertions of pectoral-fin spines with unique pattern consisting of a continuous irregular line varying in size and spacing; absence of the maxillary barbel in the lateral margin of the lower lip; teeth in each premaxilla 60-82 and dentary 55-80; club-shaped pectoral-fin spine; depressed head, with head depth 38.5-45.2% HL; absence of the first dorsal-fin spinelet (132467).
Cross section: flattened.
The species inhabits clear, fast-flowing water, with a substrate composed of smooth rocky bed and fragmented marginal vegetation. At the type locality (0.5 to 1 m deep and 10 m wide), individuals are abundant in cracks and crevices in the bedrock and can be readily captured manually (Ref. 132467).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Pereira, E.H.L., T.C. Pessali and R.E. Reis, 2024. A new small-sized Pareiorhaphis (Siluriformes: Loricariidae) from the Manhuacu River, Doce River Basin, Minas Gerais State, Eastern Brazil. Ichthyol. Herpetol. 112 (1) 2024, 69-75. (Ref. 132467)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 興味がない
用具
特記事項
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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) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00977 (0.00436 - 0.02192), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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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 (13 of 100). 🛈 |