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Craterocephalus nouhuysi (Weber, 1910)

Mountain hardyhead
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Image of Craterocephalus nouhuysi (Mountain hardyhead)
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drawing shows typical species in Atherinidae.


Papua New Guinea 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 Upper Fly-Strickland River system. Also Ref. 13533.
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

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: Weber.

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

Freshwater; benthopelagic; pH range: 7.0 - 7.8; dH range: 8 - 18.   Tropical; 22°C - 24°C (Ref. 13614); 4°S - 8°S

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

Asia and Oceania: Lorentz River in Irian Jaya, Indonesia and Upper Fly-Strickland River systems in Papua New Guinea.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. 2847)

Short description Identification keys | Morphology | Morphometrics

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

Biology     Glossary (e.g. epibenthic)

Inhabits relatively fast-flowing streams, usually forming schools in rocky pools or quiet backwaters.

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)

  Least Concern (LC) ; Date assessed: 03 December 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

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):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).