Scleronema macanuda Ferrer & Malabarba, 2020
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: Scleronema: Greek, skleros = hard + Greek,nema = filament (Ref. 45335); macanuda: Named after the word ‘macanuda’, a regional adjective to describe a ’large and strong’ person, referring to the species being the largest of the genus.
Etymology: Scleronema: Greek, skleros = hard + Greek,nema = filament (Ref. 45335); macanuda: Named after the word ‘macanuda’, a regional adjective to describe a ’large and strong’ person, referring to the species being the largest of the genus.
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.
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: widely distributed in rivers and streams that drain to laguna dos Patos (Brazil) and lagoa Mirim (Brazil and Uruguay); and in small Atlantic coastal drainages of Uruguay.
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) : 10 - 14; 臀鰭軟條: 6 - 7; 脊椎骨: 35 - 36. This species is distinguished from all its congeners, except operculatum by the following characters: maxillary barbel is smaller than half-length of the head (vs. larger than half-length of the head); tips of pectoral-fin rays extending beyond the interadial membrane (vs. not extending beyond interadial membrane); skin flap in the posterior margin of the opercle pointed and long (vs. round an short); fleshy flap at the base of the maxillary barbel located anteriorly, it is thick, prolonged up to the snout and with distal margin straight (vs. fleshy flap located posteriorly, thin, restricted to the maxilla and with distal margin rounded); caudal fin with a transversal black bar distally (vs. no black bar) differs S. operculatum by having a midlateral line of 6-9 rounded black blotches larger than opercle (vs. midlateral line of 10-14 rounded black blotches as large as or smaller than opercle), tip of nasal barbel usually extending beyond anterior margin of eye (vs. never reaching anterior margin of eye), tip of maxillary barbel extending between anterior and posterior margins of interopercle (vs. tip never surpassing anterior margin of interopercle) (Ref. 122319).
Cross section: oval.
Cross section: oval.
Inhabits rivers and streams usually with sandy bottoms. Collected syntopically with S. minutum in some localities. Stomachs of eleven specimens were analyzed where 6 had immature aquatic Diptera (Chironomidae), Oligochaeta, unidentified plant fragments and sand. A study showed that the diet of immature individuals was composed of Chironomidae and Ephemeroptera. Individuals larger than 3.5 cm SL are reported to be capable of spawning and thus are considered adults (Ref. 122319).
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
Ferrer, J. and L.R. Malabarba, 2020. Systematic revision of the Neotropical catfish genus Scleronema (Siluriformes: Trichomycteridae), with descriptions of six new species from Pampa grasslands. Neotrop. Ichthyol. 18(2):1-81. (Ref. 122319)
CITES
Not Evaluated
對人類具威脅
人類使用
FAO - Publication: search | FishSource |
更多資訊
營養生態學
食物項目（獵物）
食性組成
食物消耗量
食物配給
捕食者
食物項目（獵物）
食性組成
食物消耗量
食物配給
捕食者
生態學
生態學
生態學
人口動態
成長參數
最大年齡/尺寸
長度重量比
長度關係
長度-頻率
質量轉換
入添量
豐度
成長參數
最大年齡/尺寸
長度重量比
長度關係
長度-頻率
質量轉換
入添量
豐度
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 | 國家資料庫 | 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 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00759 (0.00332 - 0.01733), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-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). 🛈 |