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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

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Cichlasomatinae
Etymology: Hypsophrys: Greek, hypsi = high + Greek, ophrys = eyebrow (Ref. 45335).
  More on author: Günther.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser demersal; pH range: 7.0 - 8.0; dH range: 9 - 20.   Tropical; 21°C - 34°C (Ref. 36880)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Central America: Atlantic slope of Nicaragua and western Costa Rica, in the San Juan River drainage, including Lake Nicaragua and Lake Managua.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm SL Männchen/unbestimmt; (Ref. 36377)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 18 - 19; Rückenflossenweichstrahlen (insgesamt): 9-10; Afterflossenstacheln 7-8; Afterflossenweichstrahlen: 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).

Biologie     Fachlexikon (Englisch) (z.B. 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.

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Spawns in caves. During spawning both parents completely change their color.

Hauptreferenz Upload your references | Referenzen | Koordinator : Kullander, Sven O. | Partner

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 Rote Liste Status (Ref. 130435)

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

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless




Nutzung durch Menschen

FAO(Publication : search) | FishSource |

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Internet Quellen

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes(Gattung, Arten) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(Genom, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Öffentliche Aquarien | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Gehe zu, Suchen) | World Records Freshwater Fishing | Zoological Record

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).
Trophic level (Ref. 69278):  2.0   ±0.00 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Fec=50-60).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).