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Silurus biwaensis
拍攝者 Jean-Francois Helias / Fishing Adventures Thailand
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拍攝者 Jean-Francois Helias / Fishing Adventures Thailand
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) > Siluridae (Sheatfishes) 鯰科 (Sheatfishes)
Etymology: Silurus: Greek, silouros = a cat fish + Greek, odous = teeth (Ref. 45335).
Etymology: Silurus: Greek, silouros = a cat fish + Greek, odous = teeth (Ref. 45335).
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. 溫帶
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Asia: Endemic to Lake Biwa, Japan.
亞洲: 琵琶湖，日本的特有種。
亞洲: 琵琶湖，日本的特有種。
大小 / 重量 / 年齡
Largest species among the Japanese silurid fishes (Ref. 37518).
在日本鯰魚魚之中的大種.(參考文獻 37518)
在日本鯰魚魚之中的大種.(參考文獻 37518)
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Based on observations, a female first searches for a spawning site, with a male following behind. Immediately the female stops, the male first places his head under that of the female and then, by bending his body towards her anal fin, positions himself such that his tail is towards the end of the female's snout. From this position, the male then begins to wrap his tail around the head of the female, gradually winding his body tighter and moving along the body of the female until positioned at the center of her body. The male then winds his body tightly around the dorsal side of the female's abdomen for 20-30 seconds. The female then shakes her head from side to side several times, and orientates her body downward. This behavior causes the male to become separated from the female. Immediately after separation, the female releases a large number of eggs, and circles around with the male following on the inside. Although gamete release by the male was not actually observed, it seems likely that the eggs are fertilized during circling. After circling, the pair turns round twice violently, causing the eggs to become widely scattered. The pair then swim away with the female in the lead.亞洲: 琵琶湖，日本的特有種。
主要參考資料
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Kobayakawa, M., 1989. Systematic revision of the catfish genus Silurus, with description of a new species from Thailand and Burma. Jap. J. Ichthyol. 36(2):155-186. (Ref. 9417)
CITES
Not Evaluated
對人類具威脅
無害處的
人類使用
游釣魚種: 是的
FAO - Publication: search | FishSource |
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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 | 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 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00281 - 0.01127), b=3.00 (2.83 - 3.17), 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): 4.2 ±0.8 se; based on size and trophs of closest relatives
回復力 (參考文獻 120179): 非常低的, 最小族群倍增時間超過14 年 (Preliminary K or Fecundity.).