Papua New Guinea country information

Common names: Snake-headed gudgeon
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Sepik region (Ref. 44894). Common throughout the lower altitudes of the Sepik River basin; known also from Ramu river (Ref. 13533) . Also Ref. 5259, 2847, 6771.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pp.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/PNG/png.htm
Occurrences: Occurrences Point map
Main Ref: Kailola, P.J., 1991
National Database:

Common names from other countries

Eléotris serpent, Snake-headed gudgeon, Ornate sleeper, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

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

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

marien; zoet water; brak water demersaal; amfidroom (Ref. 46888); diepte 0 - 5 m (Ref. 86942). Tropical; 20°C - 30°C (Ref. 2060); 18°N - 25°S

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

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 29.0 cm TL mannelijk / geslacht onbekend; (Ref. 11344); max. gepubliceerd gewicht: 171.00 g (Ref. 9162); max. gepubliceerd gewicht: 171.00 g

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 7; Dorsale zachte stralen (totaal) : 8 - 9; Anale stekels: 1; Anale zachte stralen: 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).

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).

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Plant spawner.

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 24 August 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: visserij voor eigen gebruik

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Estimates based on models

Preferred temperature (Ref. 115969): 26.6 - 29.3, mean 28.6 (based on 2159 cells).

Fylogenetische diversiteitsindex (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).

Trofisch niveau (Ref. 69278): 2.6 ±0.2 se; based on diet studies.

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Fec = 100,000).

Fishing Vulnerability (Ref. 59153): Low vulnerability (19 of 100).

Prijsklasse (Ref. 80766): Unknown.

Giuris margaritaceus (Valenciennes, 1837)