Corydoras aurofrenatus Eigenmann & Kennedy, 1903
Goldhead cory
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) > Callichthyidae (Callichthyid armored catfishes) 美鯰科 (Callichthyid armored catfishes) > Corydoradinae
Etymology: Corydoras: Greek, kory = helmet + greek, doras = skin (Ref. 45335).
More on authors: Eigenmann & Kennedy.
Etymology: Corydoras: Greek, kory = helmet + greek, doras = skin (Ref. 45335).
More on authors: Eigenmann & Kennedy.
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; pH range: 6.0 - 8.0; dH range: 2 - 25; 深度上下限 0 - 1 m (Ref. 123578). 熱帶; 22°C - 26°C (Ref. 13371)
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: Paraguay River basin.
南美洲: 巴拉圭河流域與阿根廷.(參考文獻 9086)
南美洲: 巴拉圭河流域與阿根廷.(參考文獻 9086)
大小 / 重量 / 年齡
簡短描述 檢索表 | 型態特徵 | 形態測量圖
This species is distinguished by the following characters: temporal sensory canal in sphenotic with two pores anterior to the branch that gives rise to infraorbital canal; upper tooth plate of branchial arch with three to four series of teeth; area at the corner of the mouth, ventral to
maxillary barbel, with a fleshy flap; no dark brown or black stripe transversally crossing the eye; ventral surface of head and trunk densely covered by small, not coalescent platelets; color pattern of the middle portion of its flank, composed by two or three dark brown or black patches, with first one below dorsal-fin, second one below adipose-fin base and third one, when present, diffuse, and on caudal peduncle base, patches decreasing in size posteriorly; with a poorly developed fleshy flap of skin at the corner of the mouth; presence of short opercular membrane, leaving the anteroventral portion of cleithrum exposed (Ref. 123578).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Facultative air-breathing (Ref. 126274); This species was captured from small streams to the main channel of rivers within Paraguayan territory. The arroyo Laguna Penayo is a stream with about 20 m width and 0.5 m deep, with very slight to stagnant current, turbid water, and substrate composed mainly of clay. An unnamed stream tributary from the río Apa, about 25 m width and 1 m deep, with stagnant current, dark brown, very turbid water, and substrate composed by sand, rocks and trunks. The río Araguay-Guazú, is relatively small river with about 35 m width and 1 m deep, moderate current, turbid water, and substrate composed mainly by sand. The río Jejuí-Guazú is a small river with brown semi transparent water, and substrate composed mainly by sand, gravel and leaf heaps. Another small, unnamed stream tributary from the río Paraguay has light brown water, and substrate composed mainly by sand. Most sites presented some degree of anthropogenic impact (Ref. 123578).
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
The female holds 2-4 eggs between her pelvic fins, where the male fertilizes them for about 30 seconds. Only then the female swims to a suitable spot, where she attaches the very sticky eggs. The pair repeats this process until about 100 eggs have been fertilized and attached (Ref. 1672).南美洲: 巴拉圭河流域與阿根廷.(參考文獻 9086)
主要參考資料
上傳您的推薦信 | 參考文獻 | 合作者 : Reis, Roberto E. | 合作者
Tencatt, L.F.C., S.A. dos Santos and M.R. de Britto, 2020. Taxonomic review of the typical long-snouted species of Corydoras (Siluriformes: Callichthyidae) from the río de La Plata basin. Neotrop. Ichthyol. 18(4):1-36. (Ref. 123578)
CITES
Not Evaluated
對人類具威脅
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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
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網路資源
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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=0.01820 (0.00782 - 0.04232), b=3.02 (2.82 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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營養階層 (參考文獻 69278) |
3.0 ±0.3 se; based on size and trophs of closest relatives |
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回復力 (參考文獻 120179) |
高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.). |
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釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |