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Hypsophrys nematopus (Günther, 1867)

Poor man's tropheus
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Nicaragua country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the San Juan River drainage including Lake Nicaragua and Lake Managua (Ref. 36377) Also Ref. 7335.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nu.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kullander, S.O., 2003
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) > Cichlasomatinae
Etymology: Hypsophrys: Greek, hypsi = high + Greek, ophrys = eyebrow (Ref. 45335).
  More on author: Günther.

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

; 淡水 居於水底的; pH range: 7.0 - 8.0; dH range: 9 - 20.   熱帶; 21°C - 34°C (Ref. 36880)

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

Central America: Atlantic slope of Nicaragua and western Costa Rica, in the San Juan River drainage, including Lake Nicaragua and Lake Managua.
中美洲: 尼加拉瓜與哥斯大黎加西部的大西洋斜坡, 在桑河胡安河流域, 包括湖尼加拉瓜與湖馬拿瓜。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 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

背棘 (總數) : 18 - 19; 背的軟條 (總數) : 9 - 10; 臀棘: 7 - 8; 臀鰭軟條: 6 - 7. This species is distinguished by the following set of characters: teeth properly incisor, even in young; caudal edge of mesethmoid with a unique shape; caudal edge of supraoccipital crest straight, inclined rostrad, its height 27% of postethmoid skull length; width of posterior premaxillary expansion greater than 41% of length of the same bone; arms of articular equal in length; gut S-folded ventrorostrally in adults, anal and medial loops nearly touching; with an abrupt, steep head profile (Ref. 74403).

生物學特性     字彙 (例如 epibenthic)

Inhabits both lakes and rivers. Proliferates in rivers with medium to high velocities. Found between 35 and 535 m elevation (Ref. 36880). Feeds on aufwuchs which cover rocks and submersed trees and filaments of algae.

棲息於湖和河。 以中等的到高的速度在河中增殖。 發現在 35 與 535 公尺海拔之間了。 (參考文獻 36880) 吃覆蓋岩石與生長水中的樹與藻類的絲狀突起的附著生物。

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

Spawns in caves. During spawning both parents completely change their color.中美洲: 尼加拉瓜與哥斯大黎加西部的大西洋斜坡, 在桑河胡安河流域, 包括湖尼加拉瓜與湖馬拿瓜。

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

Schmitter-Soto, J.J., 2007. A systematic revision of the genus Archocentrus (Perciformes: Cichlidae), with the description of two new genera and six new species. Zootaxa 1603:1-78. (Ref. 74403)

IUCN 瀕危狀態 (Ref. 130435)

  近危 (NT) (B1ab(iii)); Date assessed: 30 July 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02042 (0.00927 - 0.04498), b=3.11 (2.92 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  2.0   ±0.00 se; based on food items.
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 (Fec=50-60).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).