Classification / Names
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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Eponymy: Dr David Coates is a marine biologist and limnologist whose bachelor’s and master’s degrees were awarded by the University of Newcastle-upon-Tyne, England. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopã©lagique. Tropical; 3°S - 6°S
Oceania: endemic to Sepik and Ramu rivers in Papua New Guinea.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm ?, range 36 - ? cm
Max length : 75.0 cm SL mâle / non sexé; (Ref. 2847); common length : 45.0 cm SL mâle / non sexé; (Ref. 9233); common length :45 cm SL (female); poids max. publié: 5.0 kg (Ref. 9233)
Épines dorsales (Total) : 1; Rayons mous dorsaux (Total) : 7; Épines anales: 0; Rayons mous anaux: 19 - 21.
Found in rivers only. Occurs at temperatures ranging from 26 to 32°C. Mainly diurnal. Feeds mainly on fine and coarse detritus, other plant material (particularly seeds and small pieces of bark), and especially prawns. Also preys on aquatic insects and nymphs, fishes, worms and leeches (Ref. 2847).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Mouthbrooder.
Coates, D., 1991. Biology of fork-tailed catfishes from the Sepik River, Papua New Guinea. Environ. Biol. Fishes 31(1):55-74. (Ref. 9233)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Menace pour l'homme
Traumatogenic (Ref. 58010)
Utilisations par l'homme
Pêcheries: pãªcheries vivriã¨res
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [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).
Niveau trophique (Ref.
69278): 3.0 ±0.41 se; based on food items.
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (57 of 100).