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).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 亞熱帶的
South America: endemic to Argentina.
南美洲: 阿根廷的特有種。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 9.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 52833)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 10 - 12; 臀鰭軟條: 9 - 11; 脊椎骨: 38 - 39. Head and cheek musculature hypertrophied, head shape square in dorsal view; first pectoral fin ray prolonged as a thin, short filament; tip of pelvic fin when depressed not reaching the anus; pectoral fin rays 7-8; pelvic fin short, not extending posteriorly to reach the anus; premaxilla with outer row teeth incisiform, not spatulate (Ref. 52833).
頭部與頰的肌肉組織肥大, 頭部形狀從背面觀察一致; 第一個延長的胸鰭鰭條作為一個細又短的絲狀突起; 腹鰭的頂端當扁平的不達到肛門; 胸鰭鰭條 7-8; 腹鰭短, 不向後延伸達到肛門; 前頜骨用外部的列齒鑿狀牙, 不是竹片狀.(參考文獻 52833)
Found in a small, clear-water stream with sandy bottom at an elevation of approximately 4,050 m (Ref. 52833). Feeds on aquatic insects (Ref. 52833).
發現於一個小且清澈-水水流了且底部為沙地的地方在海拔大約 4,050 公尺.(參考文獻 52833) 吃水生昆蟲。 (參考文獻 52833)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 阿根廷的特有種。
Fernández, L. and S.A. Schaefer, 2003. Trichomycterus yuska, a new species from high elevations of Argentina (Siluriformes: Trichomycteridae). Ichthyol. Explor. Freshwat. 14(4):353-360. (Ref. 52833)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 15 January 2021
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00400 - 0.02388), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.40 se; based on food items.
回復力 (Ref.
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).
