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Geophagus brasiliensis (Quoy & Gaimard, 1824)

Pearl cichlid
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Geophagus brasiliensis
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United States (contiguous states) country information

Common names: Pearl eartheater
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Beatty, S.J., D.L. Morgan, J. Keleher, M.G. Allen and G.A. Sarre, 2013
National Database:

Common names from other countries

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | 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: Quoy & Gaimard.

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水; 半鹹淡水 底中水層性; pH range: 6.5 - 7.0; dH range: 5 - 10; 河川洄游 (Ref. 51243).   熱帶; 11°C - 37°C (Ref. 116045)

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

South America: Coastal drainages of eastern and southern Brazil and Uruguay.
南美洲: 東方與巴西南部的海岸流域與烏拉圭。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 9.1  range ? - ? cm
Max length : 28.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 36377); common length : 9.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193)

生物學特性     字彙 (例如 epibenthic)

Quite popular with aquarists.

此魚種被引入但是在佛羅里達不建立了.(參考文獻 4537) 相當受水族業者的歡迎。

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

南美洲: 東方與巴西南部的海岸流域與烏拉圭。

主要參考資料 Upload your references | 參考文獻 | 合作者 : Kullander, Sven O. | 合作者

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

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




人類使用

漁業: 商業性; 水族館: 商業性
FAO(Publication : search) | FishSource |

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Trophic ecology
食物相
Diet compositions
Food consumptions
Food rations
捕食者
Ecology
生態學
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
長度-頻率
Mass conversions
Recruitments
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繁殖
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
仔魚
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魚的聲音
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.01559 - 0.02439), b=3.01 (2.96 - 3.06), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
營養階層 (Ref. 69278):  2.6   ±0.26 se; based on food items.
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Fec=600-800).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (18 of 100).
價格種類 (Ref. 80766):   Unknown.