分類 / 名前
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Baryancistrus: Greek, barys = heavy + Greek, agkistron = hook (Ref. 45335); isaaci: Name 'isaaci' in honor of Isaäc Isbrücker, for his contribution to the knowledge of Neotropical Ichthyology, especially loricariids.
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: Brazil.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 27.0 cm SL オス/雌雄の選別がない; (Ref. 138404)
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) : 7; 臀鰭: 4. This species is distinguished from its congeners by the following set of characters: large and yellow dots, larger than pupil and distant from each other; abdominal area covered by plates; dorsal-fin posterior membrane reaching or almost reaching the preadipose plate, leaving just one plate between the membrane and the preadipose plate; distance between the dorsal and adipose fins 0.0-2.5% of SL; postdorsal length 23.2-26.2% of SL; lack of a yellow-orange bar on the distal border of dorsal and caudal fins in juveniles and adult specimens; and orbit diameter 18.5-26.0% of HL (Ref. 138404).
Body shape (shape guide): elongated; Cross section: oval.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
de Oliveira, R.R. and L.H.R. Py-Daniel, 2025. Two new species of the ornamental loricariid genus Baryancistrus (Siluriformes: Hypostominae) from rio Trombetas basin, Pará, Brazil. Neotrop. Ichthyol. 23(3):e250066. (Ref. 138404)
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): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00726 - 0.03306), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
回復力 (参照
120179): 手段, １．４年～４．４年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 (23 of 100).
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