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: Chaetostoma: Greek, chaite = hair + Greek, stoma = mouth (Ref. 45335); trimaculineum: Derivedfrom the Latin prefix tri, meaning three, and nouns macula, meaning spot, and linea, meaning line, in reference to the three distinctive rows of spots along the flanks of this species.
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.
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: upper Santiago and middle Marañon river drainages in eastern Ecuador and northern Peru.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 16.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 104727)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Chaetostoma trimaculineum is distinguished from all other congeners from Amazon Basin except C. anale by having three to four linear rows of distinct, round, naris-sized black spots on the median, mid-dorsal, and dorsal plate series of the trunk (vs. absence of black spots, larger than orbit, or also present on mid-ventral plate series). It also differs from all other Amazon Basin species except C. anale, C. daidalmatos, C. dermorhynchum, middle Ucayali populations of C. lineopunctatum (including type locality), C. stroumpoulos, and C. vagum by having distinct round black spots half naris diameter spaced less than one spot width apart on head (vs. absence of spots on head or white); from C. anale, C. carrioni, C. lexa, C. marmorescens, C. stroumpoulos, and C. vagum by having four branched rays on anal fin (vs. anal fin absent or with most frequently three or less or five branched rays); from C. branickii/taczanowskii, C. carrioni, C. lexa, C. loborhynchos, C. marmorescens, and C. microps by having a supraoccipital excrescence (vs. absence of excrescence); from C. changae, C. jegui, C. lexa, C. marmorescens, and C. microps by having eight branched dorsal-fin rays (vs. most frequently nine or sometimes ten); from C. anale, C. carrioni, C. daidalmatos, C. lexa, and C. microps by having more teeth per premaxillary ramus (an average of
112632, vs. typically, 80); from C. anale, C. carrioni, C. lexa, C. marmorescens, and C. microps by having more teeth per mandible (an average of 156645, vs. typically, 111); from C. breve, C. lineopunctatum, and C. microps by having lesser head depth (23.060.3% SL, vs. 23.3); from C. loborhynchos and C. marmorescens by having lesser cleithral width (32.760.8% SL, vs. 33.5); and from C. branickii/taczanowskii and C. lexa by having four or five evertible cheek odontodes (vs. six or more). Chaetostoma trimaculineum mostly resembles C. anale but can be distinguished by the tooth and anal-fin branched ray counts, by the absence of spots from most or all of the compound pterotic (vs. spots covering the pterotic), by having generally straighter rows of spots along the body, and by lacking spots from the mid-ventral plate series (vs. spots often present on at least some mid-ventral plates) (Ref. 104727).
Body shape (shape guide): elongated.
Facultative air-breathing in the genus (Ref. 126274)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Lujan, N.K., V. Meza-Vargas, V. Astudillo-Clavijo, R. Barriga-Salazar and H. López-Fernández, 2015. A multilocus molecular phylogeny for Chaetostoma Clade genera and species with a review of Chaetostoma (Siluriformes: Loricariidae) from the Central Andes. Copeia 103(3):664-701. (Ref. 104727)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
人類使用
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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]. |
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Bayesian length-weight
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a=0.01660 (0.00730 - 0.03773), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
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0 |
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) |
Moderate vulnerability (35 of 100). 🛈 |