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Giuris margaritaceus (Valenciennes, 1837)

Snakehead gudgeon
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Giuris margaritaceus
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Timor-Leste country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref: Larson, H.K. and B. Pidgeon, 2004
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: River near Deli; river near Atapupu; Mota Bertuli; Vero River.
National Checklist:
Country Information: ttps://www.cia.gov/library/publications/the-world-factbook/geos/tt.htm
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Larson, H.K. and B. Pidgeon, 2004
National Database:

Common names from other countries

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Eleotridae (Bully sleepers)
Etymology:   More on author: Valenciennes.

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

marina; sötvatten; brackvatten bottenlevande; amfidrom (Ref. 46888); djupintervall 0 - 5 m (Ref. 86942).   Tropical; 20°C - 30°C (Ref. 2060); 18°N - 25°S

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Africa to Oceania: Madagascar to New Guinea, Australia and other islands of Melanesia.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 29.0 cm TL hane/ej könsbestämd; (Ref. 11344); publicerad maxvikt: 171.00 g (Ref. 9162); publicerad maxvikt: 171.00 g

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 7; Mjukstrålar i ryggfenan (totalt): 8-9; Taggstrålar i analfenan 1; Mjukstrålar i analfenan: 9. Body relatively large, stout and cylindrical with a dorsally flattened head; generally greenish brown with 8-10 dark bars across sides and large black blotch at base of pectoral fins; lower half of head tan or yellowish with 3-4 dark brown to reddish stripes radiating from lower part of eye (Ref. 44894).

Biologi     Ordlista (t.ex. epibenthic)

Adults occur in fresh water, estuaries and inshore (Ref. 86252). Found in a variety of habitats including rivers, swamps, coastal streams and floodplains over mud bottoms, often among dense aquatic vegetation or the cover of undercut banks. They feed mainly on aquatic insects and nymphs, but also takes lesser amount of algae, other aquatic plants and small crustaceans. Pelagic larval stage is found in marine water, but adults are always found in freshwater (Ref. 44894).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Plant spawner.

Main reference Upload your references | referenser | Koordinator | Medarbetare

Allen, G.R., S.H. Midgley and M. Allen, 2002. Field guide to the freshwater fishes of Australia. Western Australian Museum, Perth, Western Australia. 394 p. (Ref. 44894)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 24 August 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fiskeri: husbehovsfiske
FAO(Publication : search) | FishSource |

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll
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synonymer
Metabolik
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Reproduktion
Könsmognad
Lek
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
Larvdynamik
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referenser
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Estimates based on models

Preferred temperature (Ref. 115969): 26.6 - 29.3, mean 28.6 (based on 2159 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00418 - 0.01315), b=3.17 (3.00 - 3.34), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå (Ref. 69278):  2.6   ±0.2 se; based on diet studies.
Resiliens (Ref. 120179):  Hög, lägsta populationsfördubblingstid mindre än 15 månader (Fec = 100,000).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (19 of 100).
Price category (Ref. 80766):   Unknown.