分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Loricariidae (Armored catfishes)
甲鯰科 (Armored catfishes) > Loricariinae
Etymology: guianensis: Named for French Guiana.
Eponymy: Charles Frederick Hartt (1840–1878) was a Canadian geologist, palaeontologist and naturalist, who was a member of the Thayer Expedition (1865–1866) to Brazil, a country in which he was a specialist. [...] (Ref. 128868), visit book page.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 居於水底的. 熱帶
South America: Sinnamary and Approuague River basins.
南美洲: Sinnamary 與 Approuague 河流域。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 17.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 36389)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Head and predorsal uniformly dark brown in larger individuals and marbled in young. Caudal fin (?) with two small dark black blotches at tip of upper lobe and only one on tip of lower lobe; point of confluence of the lateral keels at 20-22nd. Dorsal fin with large black spot on its distal end. Other fins spotted except the anal fin. Head depth, 2.3-3.3 times in SL; body depth 1.9-3.2 times in SL. Belly totally naked except for thoracic plates and a group of small irregular plates concentrated on the anus, just posterior to pelvic-fin insertion. Rictal barbels small, attached to lower lip by small membrane. Stomach indistinguishable; intestine very long, about 14 times in SL. Keeled lateral plates, 29-30 (Ref. 40703).
Body shape (shape guide): elongated.
頭部與前背的全黑褐色在較大的個體中而且有大理石花紋當幼魚時。 尾鰭 (?) 在下葉的頂端上的上葉與只有一個的頂端有兩個小的深黑色的斑塊; 側龍骨的匯流的點在 20- 第 22. 背鰭有大的黑色斑點在它的末梢部的末端。 其他的鰭有斑點的除臀鰭。 頭部深度,2.3-3.3 標準體長比率; 體高 1.9-3.2 標準體長比率。 腹面完全地裸露的除了胸廓的碟與專注於肛門的一群小的不規則的碟, 正好在腹鰭嵌入後面。 嘴裂的觸鬚小的, 依附於小薄膜的下唇。 腹部不能辨別的; 腸非常長的, 大約標準體長比率 14。 隆起的側骨板,29-30.(參考文獻 40703)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Sinnamary 與 Approuague 河流域。
Rapp Py-Daniel, L.H. and E.C. Oliveira, 2001. Seven new species of Harttia from the Amazonian-Guyana region (Siluriformes: Loricariidae). Ichthyol. Explor. Freshwat. 12(1):79-96. (Ref. 39753)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 12 March 2023
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基於模型的估計
系統發育多樣性指數 (參考文獻 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=0.00589 (0.00271 - 0.01280), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
2.5 ±0.2 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Moderate vulnerability (37 of 100). 🛈 |