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) >
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); potschi: Named for the herpetologist Sérgio Potsch, who first collected the new species.
Eponymy: Dr Sergio Potsch de Carvalho e Silva is a Brazilian herpetologist in the Department of Zoology, Institute of Biology and Laboratory Head, Federal University of Rio de Janeiro. [...] (Ref. 128868), visit book page.
More on authors: Barbosa & Costa.
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
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: coastal basins between Mangaratiba and Itaguaí in Rio de Janeiro, southeastern Brazil.
南美洲: 在里約熱內盧,巴西東南方的在 Mangaratiba 與 Itaguai 之間的海岸流域。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 8.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 52913)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 11 - 12; 臀鰭軟條: 9 - 10; 脊椎骨: 37 - 39. Posterior tip of posterior ceratohyal slender, its depth 2.3-6.5% of longitudinal length of the hyoid bar; ventroposterior process of posterior ceratohyal absent or vestigial (1.7%, or less when present, of longitudinal length of the hyoid bar); opercular patch of odontodes slender, its depth 44.0-73.7% of base length of opercular dorsal projection; first pectoral-fin ray 28.8-37.0% of pectoral-fin length); 7 pectoral fin rays; 8 branchiostegal rays; 14-15 pleural ribs; infraorbital sensory pores i1 and i3 present; supraorbital sensory pores s6 nearer to each other than to eye; dorsal-fin origin in vertical through centrum of 20th or 21st vertebra; anal-fin origin in vertical through centrum of 23rd or 24th vertebra; pelvic fins anteriorly placed; prepelvic length 53.9-57.8% SL; orbital diameter 6.7-7.5% of head length; head length 20.0-21.8% SL; interorbital width 28.1-30.8% of head length; caudal peduncle depth 13.8-15.3% SL; body width 9.7-12.3% SL; body depth 15.1-16.4% SL; dorsal-fin base 10.6-11.4% SL; anal-fin base 8.6-10.2% SL; and pectoral-fin length 9.9-12.5% SL (Ref. 52913).
Body shape (shape guide): elongated.
在後部角舌骨的後部頂端細長的, 它的深度 U 字形橫帶的 2.3-6.5% 縱向長度; 在後部角舌骨的下後突起不存在或退化的;(1.7% ,以內當存在時, U 字形橫帶的縱向長度) 齒的鰓蓋小區塊細長的, 它的深度鰓蓋背部的突出 44.0-73.7% 基底長度; 第一個胸鰭鰭條 28.8-37.0% 的胸鰭長度); 7個胸鰭鰭條; 8個鰓條骨; 14-15根胸膜的肋骨; 眶下的感覺小孔 i 1 與 i 3 呈現; 眶上的感覺小孔 s 6 超過到眼睛較接近彼此; 背鰭起點在垂直的經過第 20 或第 21個脊椎骨的椎體; 臀鰭起源在垂直的經過第 23 或第 24個脊椎骨的椎體; 腹鰭前面地放置; 腹鰭前的長度 53.9-57.8% SL; 眼窩的直徑 6.7-7.5% 的頭長; 頭長 20.0-21.8% SL; 眼間骨寬度 28.1-30.8% 的頭長; 尾柄深度 13.8-15.3% SL; 身體寬度 9.7-12.3% SL; 體高 15.1-16.4% SL; 背鰭基底 10.6-11.4% SL; 臀鰭基底 8.6-10.2% SL; 而且胸鰭長度 9.9-12.5% SL.(參考文獻 52913)
Inhabits clear water, shallow stream (about 0.6 m deep), with sandy bottom (Ref. 52913). Some specimens were encountered entirely buried in the bottom (Ref. 52913).
棲息於清澈的水域,淺灘水流 (大約 0.6 公尺深), 且底部為沙地的地方.(參考文獻 52913) 一些標本完全地被見到埋藏在底部之中。 (參考文獻 52913)
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: 在里約熱內盧,巴西東南方的在 Mangaratiba 與 Itaguai 之間的海岸流域。
Barbosa, M.A. and W.J.E.M. Costa, 2003. Trichomycterus potschi (Siluriformes: Loricarioidei): a new trichomycterid catfish from coastal streams of southeastern Brazil. Ichthyol. Explor. Freshwat. 14(3):281-287. (Ref. 52913)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
人類使用
漁業: 沒有興趣
工具
特別的報告
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網路資源
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=0.00912 (0.00394 - 0.02111), b=2.97 (2.79 - 3.15), 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 ±0.4 se; based on size and trophs of closest relatives |
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). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |