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: Gymnogeophagus: Greek, gymnos = naked + Greek, gea = the earth + Greek, phaegein, to eat (Ref. 45335).
Issue
Redescription in Reis & Malabarba (1988).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 6.0 - 8.0; dH range: 5 - 19. 亞熱帶的; 22°C - 26°C (Ref. 1672)
South America: Paraná River basin, in the Paraguay drainage in Brazil and Paraguay, the Paraná drainage in Argentina; the lower Uruguay drainage in Uruguay and Brazil.
南美洲: 巴拉納河流域, 在巴拉圭流域在巴西與巴拉圭, 在阿根廷的 Parana 流域; 在烏拉圭與巴西的烏拉圭流域下游。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 36377)
Max. length 20 cm TL (Ref. 1672).
最大體長 20 公分TL.(參考文獻 1672)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Larvophile mouth brooders. Female tends the clutch. This updates previous information from Ref. 1672.南美洲: 巴拉納河流域, 在巴拉圭流域在巴西與巴拉圭, 在阿根廷的 Parana 流域; 在烏拉圭與巴西的烏拉圭流域下游。
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36377)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 18 November 2020
人類使用
漁業: 商業性; 水族館: 商業性
工具
特別的報告
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01030 - 0.04649), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Fec=500).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
