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); giganteus: Derived from the Latin giganteus (gigantic), referring to its large size, the biggest among species from southeastern Brazil..
More on authors: Lima & Costa.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶
South America: Upper Rio Guandu basin in southeastern Brazil.
南美洲: 在巴西東南方中的 Rio Guandu 流域上游。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 20.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 54465)
簡短描述
型態特徵 | 形態測量圖
背的軟條 (總數): 12-13; 臀鰭軟條: 10 - 11; 脊椎骨: 36 - 37. Distinguishable from the other species of the genus by having a broad dark bluish gray stripe along lateral midline of body, restricted to inner layer of tegument, overlapped by superficial dark brown spots. Also distinguished from the remaining species of the southeastern Brazil by having nine pectoral-fin rays, high number of odontodes (interopercular 59-70 vs. 30-52, opercular 23-30 vs. 10-20), anal-fin origin at vertical posterior to dorsal-fin base and a dark gray opercular patch of odontodes vs. light yellow . Differs from T. nigricans and T. immaculatus by a combination of longer nasal and maxillary barbels (nasal reaching pectoral fin base, vs. between orbit and opercular patch of odontodes; maxillary reaching anterior third of pectoral fin, vs. to interopercular patch of odontodes) and a single median third supraorbital pore vs. third supraorbital pore paired (Ref. 54465).
藉由有一個可與本屬的另一個種區別寬的深藍色的灰色斑紋沿著被侷限於被表面深褐色的斑點重疊的 tegument 的內部層的身體側面中線。 也區分巴西東南方的剩餘種藉著具有九個胸鰭鰭條，齒 (間鰓蓋骨 59-70 vs.30-52, 鰓蓋 23-30 和 10-20 比較) 的高數字, 臀鰭起源在垂直的在背鰭基底與一個齒的深灰色鰓蓋小區塊後面 vs. 淡黃色的。 有別於一個比較長鼻骨和顎的觸鬚組合的 T. nigricans 與 T. immaculatus(鼻骨達到胸鰭基底, vs. 在眼窩與齒的鰓蓋小區塊之間; 上頜骨達到胸鰭的前三分之一, vs. 對齒的間鰓蓋骨小區塊) 與一個中央的第三個眶上的孔和第三個眶上的孔比較成對的.(參考文獻 54465)
Although the type locality is a clear water stream with strong current, all specimens were found in still water between 50 and 200 cm deep, hidden under rocks (Ref. 54465).
雖然模式標本產地是有強的水流的一個清澈的水域水流, 但是，所有的標本被發現於在岩石下面被藏的 50 與 200 公分深之間的靜止水域。 (參考文獻 54465)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 在巴西東南方中的 Rio Guandu 流域上游。
Lima, S.M.Q. and W.J.E.M. Costa, 2004. Trichomycterus giganteus (Siluriformes: Loricarioidea: Trichomycteridae): a new catfish from the Rio Guandu basin, southeastern Brazil. Zootaxa 761:1-6. (Ref. 54465)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 November 2018
人類使用
更多資訊
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參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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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 (0.00319 - 0.02993), b=3.02 (2.77 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
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 (15 of 100).
