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) >
Loricariidae (Armored catfishes)
甲鯰科 (Armored catfishes) > Hypostominae
Etymology: Hemiancistrus: Greek, hemi = the half + Greek, agkistron = hook (Ref. 45335); votouro: The specific name votouro is given in honor of the Votouro Indian Reserve, located on Benjamin Constant, Rio Grande do Sul, Brazil.
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. 亞熱帶的
South America: upper Uruguay River basin in Brazil.
南美洲: 在巴西的烏拉圭河流域上游。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 14.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 54753)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 2; 背的軟條 (總數) : 7; 臀棘: 1; 臀鰭軟條: 4. Distinguished from all other species of Hemiancistrus except H. chlorostictus, H. meizospilos, H. megacephalus and H. macrops by the presence of light dots on all fins and the lateral and dorsal portions of body. H. votouro differs from H. chlorostictus by having more premaxillary teeth (61-79 vs. 30-54), larger adipose-fin spine (9.0-10.4% SL vs. 5.8-8.0% SL), deeper caudal peduncle (11.0-11.8% SL vs. 9.6-10.4% SL), larger pectoral fin (36.2-41.3% SL vs. 30.6-35.4% SL); larger exposed portion of cleithrum (11.2-12.7% SL vs. 9.3-10.6% SL), narrower body at dorsal-fin origin (17.9-19.8% SL vs. 19.9-25.3% SL) and first anal-fin pterygiophore not exposed (vs. exposed). H. votouro differs from H. meizospilos by the smaller orbit diameter (14.5-16.7% HL vs. 16.7-21.0% HL) and much smaller light markings (one to three dots per plate vs. one large dot occupying one to three plates and skin between them). H. votouro is distinguished from H. megacephalus and H. macrops by the number of the light markings per body plate (one to three small dots per plate vs. only one large dot on each body plate) (Ref. 54753).
Body shape (shape guide): elongated.
與除了 H. chlorostictus ， H. meizospilos 以外的所有其他種的 Hemiancistrus 區分了, H. megacephalus 與 H. macrops 藉由在所有的鰭與身體的側面與背部部分上有淡的點。 H. votouro 有別於 H. chlorostictus 藉著具有更多的上頜骨前的齒 (61-79 vs.30-54), 較大的脂鰭棘 (9.0-10.4% SL 和 5.8-8.0% SL 比較) ，較深的尾柄 (11.0-11.8% SL vs.9.6-10.4% SL), 較大的胸鰭;(36.2-41.3% SL vs.30.6-35.4% SL) 匙骨 (11.2-12.7% SL 和 9.3-10.6% SL 比較) 的比較大的裸露部分 , 在背鰭起點 (17.9-19.8% SL 和 19.9-25.3% SL 比較) 的較狹窄的身體與第一個臀鰭支鰭骨不暴露出來.(vs. 裸露的) H. votouro 有別於 H. meizospilos 藉由比較小的眼窩直徑 (14.5-16.7% HL 和 16.7-21.0% HL 比較) 與較小淡的斑紋。 (一對三個每碟點和一大的點佔領比較他對在他們之間的三個碟與皮膚) H. votouro 被與 H. megacephalus 與 H. macrops 區分藉由淡每身體碟 (一對三個小的每碟點和只有一個大的點比較在每個身體碟上) 斑紋的數字。 (參考文獻 54753)
Facultative air-breathing in the genus (Ref. 126274); Found in a 2-5 m wide stream, with rocky and sandy bottom, small rapids separated by pools and marginal vegetation moderately preserved (Ref. 54753).
發現於一個 2-5 公尺寬水流, 有岩石的與一般被保護的沙質底部, 被水池分開的小的急流與雜草叢.(參考文獻 54753)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 在巴西的烏拉圭河流域上游。
Cardoso, A.R. and J.F.P. da Silva, 2004. Two new species of the genus Hemiancistrus Bleeker (Teleostei: Siluriformes: Loricariidae) from the upper rio Uruguai basin. Neotrop. Ichthyol. 2(1):1-8. (Ref. 54753)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 07 November 2018
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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): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00726 - 0.03306), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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