Trichomycterus hualco Fernández & Vari, 2009
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Trichomycterus hualco
拍攝者 Fernandez, L.
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拍攝者 Fernandez, L.
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).
More on authors: Fernández & Vari.
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335).
More on authors: Fernández & Vari.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
; 淡水 底中水層性.
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: Argentina.
大小 / 重量 / 年齡
簡短描述 檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 14 - 16; 臀鰭軟條: 10 - 11; 脊椎骨: 33 - 34. This species is distinguished from its congeners, with the exception of T. areolatus by having a relatively low number of odontodes 1-14 (vs. 16 or more) on the opercle (apparent in cleared-and-stained specimens and on the interopercle 2-20 (vs. 28-40), and by the extent of development of the integument on the interopercle (integument thin and not enveloping odontodes on the interopercle vs. integument thick with odontodes embedded in integument
other than in smaller individuals). This new species differs from T. areolatus by the number of total vertebrae 33-34 (vs. 37- 39); the area of insertion of the first proximal dorsal-fin pterygiophore is posterior to neural spine of vertebra 16 or 17 (vs. vertebrae 20-22); supraorbital canal segment and pore So3 continuous, with pore So3 absent (vs. discontinuous with pore So3 present); the papillae-like structures on the body present (vs. absent). It is further distinguished from all congeners, with the exception of T. corduvensis from
Argentina and T. therma and T. tiraquae from Bolivia, by the its possession of elongate premaxillary teeth with the distal portion of each tooth flattened and slightly expanded; presence of papillae-like structures on the body; continuous supraorbital canal within the frontal with the presence of a segment between pores So2 and So6 (but with pore So3 missing); long lateral line canal with 4 pores. Also if differs with its congeners in the caudal peduncle depth 8.4-11.3% SL (vs. 11.9-13.2% SL in T. corduvensis); in head width 19.1-21.8% SL (vs. 17.4-19.0% SL in T. tiraquae ) and nearly completely in the distance from the tip of the snout to the insertion of the pelvic fin 57.4-61.9% SL (vs. 56.6-57.6% SL in T. tiraquae); in the degree of development of the transverse skin on the ventral surface of the head not thickened (vs. distinctly thickened in T. therma) (Ref. 80457).
Inhabits a small, clear water stream that flows down a small rocky canyon into a small pool. Stream and pool depth range, approximately 0.2 to 0.6 m deep and 1.0 to 1.5 m wide; both had rock and pebble bottoms and with limited adjoining terrestrial vegetation among the surrounding boulders. The type locality (Río Hualco) seeps into the soil downstream from the pool and is apparently isolated from adjoining drainages throughout the year. The specimens were collected both above and below an approximately three-meter high waterfall within the stream and in the pool, none were observed in the small outflow stream that drains the pool. Stomach contents include dipteran larvae (Chironomidae and Ceratopogonidae), this diet of autochthonous benthic macroinvertebrates is common to species of Trichomycterus. T. alterus was also collected from this site. Local inhabitants utilize the Río Hualco as a recreation site and on occasion as a bathing area, hence such activities put it at risk of ecological alteration, a threat common to many other aquatic habitats within those portions of the Andes especially for this species, given its apparent restriction to that small drainage system (Ref. 80457).
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
主要參考資料
上傳您的推薦信 | 參考文獻 | 合作者 : Pinna, Mário de | 合作者
Fernández, L. and R.P. Vari, 2009. New species of Trichomycterus from the Andean Cordillera of Argentina (Siluriformes: Trichomycteridae). Copeia 2009(1):195-202. (Ref. 80457)
CITES
Not Evaluated
對人類具威脅
人類使用
漁業: 沒有興趣
FAO - Publication: search | FishSource |
更多資訊
解剖學
鰓區
腦部
耳石
鰓區
腦部
耳石
生理學
身體成分
營養素
耗氧量
游泳類型
游泳速度
視覺色素
魚聲
疾病與寄生蟲
毒性 (LC50s)
身體成分
營養素
耗氧量
游泳類型
游泳速度
視覺色素
魚聲
疾病與寄生蟲
毒性 (LC50s)
遺傳學
基因組
遺傳學
異種性
遺傳率
遺傳多樣性
基因組
遺傳學
異種性
遺傳率
遺傳多樣性
工具
特別的報告
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網路資源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 檢查 FishWatcher | CISTI | Catalog of Fishes: 屬, 種 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 樹狀分類階層 | Wikipedia: 去, 搜尋 | World Records Freshwater Fishing | Zoobank | 動物學的記錄
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]. |
| Bayesian length-weight | 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 |
|
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |