Papua New Guinea country information

Common names: Kutubu hardyhead, Lake Kutubu hardyhead
Occurrence: endemic
Salinity: freshwater
Abundance: abundant (always seen in some numbers) | Ref: Allen, G.R., 1991
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known only from Lake Kutubu and its outlet stream, the Soro River. Also Ref. 6376 and 6993.
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: Allen, G.R., 1991
National Database:

Common names from other countries

Kutubu-Hartköpfchen, 湖硬头鱼, Lake Kutubu hardyhead, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Atheriniformes (Silversides) > Atherinidae (Silversides) > Craterocephalinae
Etymology: Craterocephalus: Greek, krater, -eros = bowl, mixing vessel + Greek, kephale = head (Ref. 45335).
More on author: Trewavas.

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

Freshwater; benthopelagic; pH range: 7.0 - 8.0; dH range: ? - 15. Tropical; 22°C - 24°C (Ref. 13614); 6°S - 7°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Oceania: known only from Lake Kutubu and its outlet stream, the Soro River, Papua New Guinea.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 14.0 cm TL male/unsexed; (Ref. 6398)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 6 - 9; Dorsal soft rays (total): 7 - 9; Anal spines: 1; Anal soft rays: 8 - 10.

An extremely abundant species which forms schools along shallow margins of the lake in both open water or amongst aquatic vegetation.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Dyer, Brian S. | Collaborators

Allen, G.R., 1991. Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B1ab(iii)); Date assessed: 04 December 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
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Predators

Ecology
Ecology
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Population dynamics
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Length-weight rel.
Length-length rel.
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Life cycle
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Egg(s)
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Distribution
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BRUVS - Videos

Anatomy
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Physiology
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Visual pigment(s)
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Diseases / Parasites
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Genetics
Genetics
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Human related
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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Craterocephalus lacustris Trewavas, 1940