分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Geophaginae
Etymology: Geophagus: Greek, gea = the earth + Greek, phagein = to eat (Ref. 45335).
More on authors: Kullander & Taphorn.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 5.2 - 7.0. 熱帶; 25°C - 30°C (Ref. 13614)
South America: Orinoco River basin, in the upper Caura and lower Caroní River basins.
南美洲: 奧里諾科河河流域, 在 Caura 上游與 Caroni 河流域下游。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 10.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 36377)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Can be distinguished from all other species in the genus by lacking scaly sheath along the dorsal fin base, and from all except Geophagus taeniopareius by retaining a prominent dark stripe from the eye to the corner of the preopercle as adult. Differs from G. Taeniopareius by (1) distinct light spots on the middle and upper part of the caudal fin, (2) lack of horizontal stripes along the sides, (3) wider lips, (4) lack of microbranchiospines and (5) lower meristics: modally D. XV1.11 instead of XVII. 11 , E1 row scales 30 instead of 32, and vertebrae 14+17 instead of 14+18 (Ref. 57764).
能在缺乏鱗鞘旁邊的本屬中被與所有的其他種區分沿著背鰭基底, 與從全部藉由保有一條突出的深色斑紋從眼睛到前鰓蓋骨的角落當成魚時除 委內瑞拉珠母麗魚〔Geophagus taeniopareius〕 。 有別於在中央與尾鰭 (2)的上半部上的明顯淡色的斑點 G. Taeniopareius(1), 缺乏水平的斑紋沿著側邊 (3)，較寬的唇 (4)，缺乏 microbranchiospines 與 (5) 低的身體分節: 典型地 D. XV1.11 取代 XVII 。 11, E1 列鱗片 30 取代 32, 與脊椎骨 14+17 取代 14+18.(參考文獻 57764)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 奧里諾科河河流域, 在 Caura 上游與 Caroni 河流域下游。
Kullander, S.O., R. Royero and D.C. Taphorn, 1992. Two new species of Geophagus (Teleostei: Cichlidae) from the Rio Orinoco drainage in Venezuela. Ichthyol. Explor. Freshwat. 3(4):359-375. (Ref. 57764)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 19 May 2017
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.01198 - 0.05266), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.5 ±0.1 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).
