分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Acestrorhynchidae (Smallscale pike characins)
狼牙脂鯉科 (Smallscale pike characins) > Heterocharacinae
Etymology: Heterocharax: Greek, heteros = other + Greek, charax = a marine fish without identification (Ref. 45335).
More on author: Eigenmann.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: Essequibo and Demarara River basins; Amazon River basin and tributaries between Tapajós and Tefé rivers; upper Amazon River basin and Orinoco River basin.
南美洲: Essequibo 與 Demarara 河流域; 在 Tapajos 與 Tefe 河之間的 Amazonas 河流域與支流; 亞馬遜河上游河流域，奧里諾科河河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 36811)
簡短描述
型態特徵 | 形態測量圖
背的軟條 (總數): 9; 脊椎骨: 35. Compared with H. virgulatus and H. leptogrammus, this species lacks the band of dark pigment dorsal to anal fin base (versus present); by its slightly upturned mouth with lower jaw somewhat prognathous (versus terminal mouth and more rounded snout). Distinguished further from H. virgulatus by its less pronounced longitudinal dark band running from posterior part of head to the caudal -fin base (versus a thicker and more heavily pigmented band); 4th and 5th infraorbitals represented by a single ossification (versus 2 separate elements); gill rakers on the epi-, hypo-, and cerato-branchial (anterior portion) of the first branchial arch are more developed; a small posterior dentary teeth beginning posterior to lateralmost tooth of the anterior series thus not forming a second internal teeth series; possess a more pointed posteroventral corner on the preopercle, and a relatively smaller orbital diameter and interorbital distance. Distinguished further from H. leptogrammus by having a deeper and more diamond-shaped body (versus elongate and slender); and, this species has typically higher counts for lateral -line scale and anal-fin rays (Ref. 38319).
與 H. virgulatus 與 H. leptogrammus 相較, 這種缺乏深色背部的到臀鰭基底的條紋;(對存在的) 用它的些微朝上嘴部具有下頜略微下巴突出的.(對口部端位且更多的圓形吻) 從 H. virgulatus 用它的從對尾鰭基底的頭部的較後面的部分延續的比較不明顯縱向的深色條紋區別進一步;(對一比較厚的與顏色更深的條紋) 第 4 與第 5個眶下骨呈現出一個成骨了;(對 2個個別的要素) 在 epi 上的鰓耙-, 皮下注射-, 與 cerato-鰓的 (前部) 第一個鰓弓是更多發展的; 小的在後部的齒骨齒開始在前面系列的最後面牙齒後面如此不形成第二個內在的齒系列; 在前鰓蓋骨上持有一個更尖的腹面後方的角落, 與相當小的眼窩直徑與眼間距。 藉由有一個從 H. leptogrammus 區別了進一步更深與更更多菱形身體;(對延長與細長的) 並且, 這種為側線鱗片與臀鰭棘條有典型比較高的計數.(參考文獻 38319)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Essequibo 與 Demarara 河流域; 在 Tapajos 與 Tefe 河之間的 Amazonas 河流域與支流; 亞馬遜河上游河流域，奧里諾科河河流域。
Toledo-Piza, M., 2000. Two new Heterocharax species (Teleostei: Ostariophysi: Characidae), with a redescription of H. macrolepis. Ichthyol. Explor. Freshwat. 11(4):289-304. (Ref. 38319)
人類使用
更多資訊
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年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
