Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Ariidae
(Sea catfishes) > Ariinae
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical; 1°S - 6°S
Asia and Oceania: Irian Jaya in Indonesia (Mamberamo river system) and Papua New Guinea (Ramu and Sepik river systems).
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 19 - ? cm
Max length : 60.0 cm SL male/unsexed; (Ref. 2847); common length : 35.0 cm SL male/unsexed; (Ref. 9233); common length :35 cm SL (female); max. published weight: 1.8 kg (Ref. 9233); max. published weight: 1.8 kg
Morphology | Morphometrics
Prefers lakes, but also occurs in the main river channels. Enters floodplains occasionally. Occurs at temperatures ranging from 26 to 32°C. Mainly diurnal. Feeds on large crustaceans such as Macrobrachium, large insects and nymphs, fishes (usually Ophieleotris aporos), leeches, earthworms, plants and detritus.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mouthbrooders. Brood mass contains 8 to 85 eggs (Ref. 2847).
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. 115185)
CITES (Ref. 115941)
Threat to humans
Traumatogenic (Ref. 58010)
Fisheries: subsistence fisheries
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.36 se; Based on food items.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (60 of 100) .