分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
麗魚科 (Cichlids) > Geophaginae
Etymology: Geophagus: Greek, gea = the earth + Greek, phagein = to eat (Ref. 45335); parnaibae: Named for the río Parnaíba basin where the species occurs.
Eponymy: These species are named after the Parnaíba River basin, Brazil. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 6.5 - 7.6. 热带; 24°C - 31°C (Ref. 57445)
South America: Rio Parnaiba drainage in Brazil.
南美洲: 在巴西的 Rio Parnaiba 流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 7.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 57445)
背棘 (总数) : 17; 背的软条 (总数) : 9 - 11; 臀棘: 3; 臀鳍软条: 7 - 8. Distinguished from all its congeners by the combination of the following characters: lack of a dark infraorbital stripe or black preopercular markings; a caudal fin with distinct longitudinal bands; only 30 to 31 scales in E1 row; and small size, maximum TL approximately 16 cm (Ref. 57445).
与它所有的同类区分了藉由下列特征的组合: 没有一条深色的眶下斑纹或黑色的前鳃盖骨斑纹; 一尾鳍有明显的纵向条纹; 在 E1 列的只有 30 到 31个鳞片; 而且体型小, 最大的 TL 大约 16 公分.(参考文献 57445)
Inhabits bare sandy bottoms in brooks and small rivers with remarkably strong current during the rainy season. Also occurs frequently in pools and ponds with more or less stagnant water during the dry season and the period of low water (Ref. 57445). A specimen measuring 6.5 cm SL has 80% plant matter (mainly seeds), aquatic insect larvae, detritus and sand grains in its stomach and adjacent intestine (Ref. 57445).
在雨季的时候以显著强的水流在小溪与小的河中栖息于裸露的砂质底部。 在干季与落潮的期间以约略污浊的水也时常在水池与池塘中出现。 (参考文献 57445) 一件测量 6.5 公分 SL 的标本有 80% 植物 (主要地种子) ，水生的昆虫幼生，碎屑与沙子谷粒在它的胃里与毗连的肠.(参考文献 57445)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在巴西的 Rio Parnaiba 流域。
Staeck, W. and I. Schindler, 2006. Geophagus parnaibae sp. n. - a new species of cichlid fish (Teleostei: Perciformes: Cichlidae) from the Rio Parnaíba basin, Brazil. Zool. Abh. (Dresden) 55:69-75. (Ref. 57445)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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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=0.02042 (0.00898 - 0.04642), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.5 ±0.1 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
