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Gymnogeophagus balzanii (Perugia, 1891)

Argentine humphead
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Gymnogeophagus balzanii
Male picture by Casacuberta, M.


Uruguay country information

Common names: Castañeta, Earth eater
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the lower Uruguay drainage (Ref. 36377).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/uy.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kullander, S.O., 2003
National Database: Dinara

Common names from other countries

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cichliformes (Cichlids, convict blennies) 鱸形目 (Cichlids, convict blennies) > Cichlidae (Cichlids) 麗魚科 (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 生态学

; 淡水 底中水层性; pH range: 6.0 - 8.0; dH range: 5 - 19.   亞熱帶的; 22°C - 26°C (Ref. 1672)

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

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 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 36377)

生物学特性     字汇 (例如 epibenthic)

Max. length 20 cm TL (Ref. 1672).

最大体长 20 公分TL.(参考文献 1672)

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

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。

主要参考文献 Upload your references | 参考文献 | 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)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 18 November 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

渔业: 商业性; 水族馆: 商业性
FAO(Publication : search) | FishSource |

更多信息

Trophic ecology
食物相
Diet compositions
Food consumptions
Food rations
捕食者
Ecology
生态学
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
体长-频率
Mass conversions
Recruitments
Abundances
Life cycle
繁殖
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
仔鱼
稚鱼动力学
Distribution
国家
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生态系
标本纪录
简介
BRUVS - Videos
Anatomy
Gill areas
脑重体重比
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
游泳类型
Swimming speeds
Visual pigment(s)
鱼的声音
Diseases / Parasites
Toxicities (LC50s)
Genetics
遗传学
Electrophoreses
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Human related
Aquaculture systems
水产养殖描述
品种
Ciguatera cases
Stamps, coins, misc.
Outreach
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Taxonomy
俗名
同种异名
型态特徵
形态测量图
照片
References
参考文献

工具

特别资料

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网络资源

Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes(, ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(基因组, 核苷酸) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | 国家资料库 | Otolith Atlas of Taiwan Fishes | 公众的水族馆 | PubMed | Reef Life Survey | Scirus | SeaLifeBase | 树状分类阶层 | Wikipedia(转至, 搜寻) | World Records Freshwater Fishing | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 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).
营养阶层 (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Fec=500).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
价格分类 (Ref. 80766):   Unknown.