分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes)
毛鼻鯰科 (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); ramosus: From the branched nasal and maxillary barbels.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 底中水層性. 熱帶
分布
國家 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: Laguna Blanca basin in Argentina.
南美洲: 阿根廷。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 6.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 45128)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
脊椎骨: 38 - 39. Body dark brown, covered with minute papillae. Some or all barbels distally branched one or more times, retaining a constant width along its length. Oval premaxilla shorter than maxilla. Teeth arranged in 2 rows. Pectoral fin rounded. Dorsal fin with 3-4 procurrent and 6-7 principal rays. Anal fin with 3 procurrent and 8-9 principal rays. Caudal fin truncate with 9-12 dorsal procurrent, 13 principal and 10-11 ventral procurrent rays (Ref. 45128).
Body shape (shape guide): elongated; Cross section: circular.
身體深褐色的, 覆蓋著細小的乳突。 一些或所有的觸鬚末梢部地分枝了一個或多個倍,保有一個固定的寬度沿著它的長度。 橢圓形前頜骨短於顎骨。 齒排列成 2 列了。 胸鰭圓的。 背鰭有 3-4 前流的與 6-7 主要的鰭條。 臀鰭有 3 前流的與 8-9個主要的鰭條。 尾鰭截形有 9-12 背部的前流,13 主要的與 10-11 腹的前流鰭條.(參考文獻 45128)
Collected from a pre-andean stream of clear water, with shallow, sandy bottom, and with vegetation along margins, at an elevation of about 3,680 m above sea level. Specimens were hiding in the sand. Stomach contents include mainly chironomid larvae (Diptera) and amphipod remains and sand (Ref. 45128),
採集自一個清澈的水域前安地斯山脈水流了, 水淺且底部為沙質的地方, 而且與植物沿著邊緣, 在海拔在海平面上面的大約 3,680 公尺。 標本正在藏在砂中。 胃內含物主要地包括寶刀魚仔魚 (雙翅類) 與片腳類動物殘餘物與沙子,(參考文獻 45128)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 阿根廷。
Fernandez, L.A., 2000. A new species of Trichomycterus from northwestern Argentina (Ostariophysi: Trichomycteridae). Ichthyol. Explor. Freshwat. 11(4):349-354. (Ref. 45128)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
極危 (CR) (B2ab(iii)); Date assessed: 27 October 2020
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00358 - 0.02025), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.2 ±0.46 se; based on food items.
回復力 (參考文獻
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Assuming Fec < 100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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