分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
South America: Rio Jequitinhonha basin in Brazil.
南美洲: 巴西。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 8.4 cm SL 雄鱼/尚未辨别雌雄; (Ref. 52473)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 8 - 10; 臀棘: 0; 臀鳍软条: 5 - 8. A series of large gray and nearly circular large spots latero-dorsally on body, some of which may be nearly fused to form long marks; a series of nearly circular large spots laterally on flank, some may be fused to form long marks, slightly smaller than the latero-dorsal circular large spots; these two series of large spots may be aligned one under the other or alternate one another; scattered, irregularly shaped and slightly smaller spots ventro-laterally on body; a series of mid-dorsal large spots on body, absent in large specimens; pelvic fin origin equidistant from base of middle caudal fin rays and a vertical between posterior margin of opercle (in juveniles, about 2.4 cm TL) and the posterior margin of pectoral fin or even slightly backward (in specimens about 8.3 cm TL); distance from dorsal fin origin to base of middle caudal fin rays 1.7-1.9 in predorsal distance and absence of spots on opercular region in intermediate and large size specimens; anus under anterior part of dorsal fin base (Ref. 52473).
一系列的大灰色与几乎圆形大的斑点 latero-在身体背面, 一些那可能是几乎融合形成长的标志; 一系列的几乎圆形大的斑点侧面地在侧面上，一些可能融合成形式长的标志, 些微地比 latero 更小-背部的圆形大斑点; 这两个成列的大斑点在另一个下面可能是排列一或者轮流彼此; 分散的﹐形状不规则的与些微比较小的斑点 ventro-侧面地在身体上; 在身体上的一系列的背部中央大的斑点,不存在于大的标本; 腹鳍起点距离相等的从中央尾鳍鳍条的基底与一垂直的在胸鳍的鳃盖 (在稚鱼中, 大约 2.4 公分TL) 与后面的邊緣的後緣之間或甚至些微向後地;(在標本大約 8.3 公分TL 中) 來自前背的距離的中央尾鰭鰭條 1.7-1.9 的背鰭起點到基底的距離而且在中間物與巨大的體型標本中的鰓蓋區域上缺乏斑點; 在背鰭基底的前部下面的肛門.(參考文獻 52473)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 巴西。
Triques, M.L. and V. Vono, 2004. Three new species of Trichomycterus (Teleostei: Siluriformes: Trichomycteridae) from the Rio Jequitinhonha basin, Minas Gerais, Brazil. Ichthyol. Explor. Freshwat. 15(2):161-172. (Ref. 52473)
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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=0.00851 (0.00355 - 0.02043), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Assuming Fec < 100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
