Potamothrissa obtusirostris (Boulenger, 1909)
Bluntnosed sawtooth pellonuline
分類 / 名稱 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Clupeiformes (Herrings) > Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Potamothrissa: Greek, potamos = river + Greek, thrissa, -es = shad (Ref. 45335).
More on author: Boulenger.
Etymology: Potamothrissa: Greek, potamos = river + Greek, thrissa, -es = shad (Ref. 45335).
More on author: Boulenger.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
; 淡水 大洋性. 熱帶; 7°N - 8°S
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Africa: middle and upper Congo River basin (Ref. 3509, 28136, 93833), especially in northern and eastern tributaries (Ref. 188, 122734), and lower Congo River (Ref. 42510), in Central African Republic (Ref. 45441), Republic of Congo (Ref. 83895) and Democratic Republic of the Congo (Ref. 42480).
非洲: 剛果河流域中、上游,也就是北方與東方的支流。
非洲: 剛果河流域中、上游,也就是北方與東方的支流。
大小 / 重量 / 年齡
簡短描述 檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 13 - 15; 臀棘: 0; 臀鰭軟條: 16 - 20. Diagnosis: Body slender, its depth 18-27% of standard length; pre-pelvic scutes not strongly keeled, beginning under or behind base of last pectoral finray, 7-10 pre-pelvic and 9-12 post-pelvic scutes, belly rounded; snout bluntly rounded; lower jaw not projecting, exactly meeting tip of upper when mouth closed, deepest at mid-point of jaw, with small saw-like teeth on each side; pre-maxillae with small teeth pointing downward; maxilla very slender, its blade over 3 times as long as deep, upper edge ridged, lower edge without denticulations; posterior supra-maxilla very small, spatulate, its shaft about as long as its blade; lower gillrakers 14-16; silver stripe on flank, narrower anteriorly (Ref. 188, 28136). It differs from Potamothrissa whiteheadi in having a distinct shaft to the posterior supra-maxilla and lacking dermal denticles on the snout, and from P. acutirostris in its blunt snout and fewer gillrakers, 14-16 vs. 16-18 (Ref. 188, 28136). Other pellonulines lack saw-like teeth at the sides of the lower jaw (Ref. 188).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
身體細長的。 前腹鰭鱗甲不有明顯的龍骨, 開始在或下面最後胸鰭鰭條的在基底正後方,7 到 10+10 到 12. 吻圓的; 下頜不是突出, 完全碰到頂端上面的當嘴巴閉合時, 深的在中央點, 有小的像見到一樣的牙齒在兩邊; 前顎有小的分向朝下的齒; 顎骨非常細長的; 第二個上顎骨非常小的
Body shape (shape guide): fusiform / normal; Cross section: compressed.
身體細長的。 前腹鰭鱗甲不有明顯的龍骨, 開始在或下面最後胸鰭鰭條的在基底正後方,7 到 10+10 到 12. 吻圓的; 下頜不是突出, 完全碰到頂端上面的當嘴巴閉合時, 深的在中央點, 有小的像見到一樣的牙齒在兩邊; 前顎有小的分向朝下的齒; 顎骨非常細長的; 第二個上顎骨非常小的
Found in rivers and streams (Ref. 41580), perhaps not in lakes (Ref. 188). It feeds on aquatic insects and also hydracarians (Ref. 188, 41580).
出現於河川與溪流, 但是可能不在湖中。 吃水生昆蟲 (例如寶刀魚仔魚) 與水螅。
出現於河川與溪流, 但是可能不在湖中。 吃水生昆蟲 (例如寶刀魚仔魚) 與水螅。
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 剛果河流域中、上游,也就是北方與東方的支流。
主要參考資料
上傳您的推薦信 | 參考文獻 | 合作者 | 合作者
Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)
CITES
Not Evaluated
對人類具威脅
無害處的
人類使用
漁業: 自給性漁業
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
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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 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00414 - 0.01834), b=3.06 (2.89 - 3.23), 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 ±0.40 se; based on food items.
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.).