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Giuris margaritaceus (Valenciennes, 1837)

Snakehead gudgeon
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Image of Giuris margaritaceus (Snakehead gudgeon)
Giuris margaritaceus
Picture by Ho, H.-C.


Fiji country information

Common names: Ika bau, Snakehead gudgeon
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fj.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/fiji/fiji.htm
Occurrences: Occurrences Point map
Main Ref: Lewis, A.D. and C.K. Pring, 1986
National Database:

Common names from other countries

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

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

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

seewasser; süßwasser; brackwasser demersal; amphidrom (Ref. 46888); tiefenbereich 0 - 5 m (Ref. 86942).   Tropical; 20°C - 30°C (Ref. 2060); 18°N - 25°S

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

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

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 29.0 cm TL Männchen/unbestimmt; (Ref. 11344); max. veröff. Gewicht: 171.00 g (Ref. 9162); max. veröff. Gewicht: 171.00 g

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 7; Rückenflossenweichstrahlen (insgesamt) : 8 - 9; Afterflossenstacheln: 1; Afterflossenweichstrahlen: 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).

Biologie     Fachlexikon (Englisch) (z.B. 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 Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Plant spawner.

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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 Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 24 August 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless




Nutzung durch Menschen

Fischereien: kleinfischerei
FAO(Publication : search) | FishSource |

Mehr Information

Trophic ecology
Nahrungsorganismen
Diet compositions
Food consumptions
Food rations
Räuber
Ecology
Ökologie
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversions
Recruitments
Abundances
Life cycle
Fortpflanzung
Maturities
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Spawnings
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Egg(s)
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Anatomy
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Gehirngröße
Otoliths
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References
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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).
Trophic level (Ref. 69278):  2.6   ±0.2 se; based on diet studies.
Widerstandsfähigkeit (Ref. 120179):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (Fec = 100,000).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (19 of 100).
Preiskategorie (Ref. 80766):   Unknown.