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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 Ökologie

; süßwasser benthopelagisch. Tropical; 3°S - 6°S

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Oceania: endemic to Sepik and Ramu rivers in Papua New Guinea.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m ?, range 36 - ? cm
Max length : 75.0 cm SL Männchen/unbestimmt; (Ref. 2847); common length : 45.0 cm SL Männchen/unbestimmt; (Ref. 9233); common length :45 cm SL (female); max. veröff. Gewicht: 5.0 kg (Ref. 9233)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 1; Rückenflossenweichstrahlen (insgesamt) : 7; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 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 Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Mouthbrooder.

Hauptreferenz Upload your references | Referenzen | Koordinator : Ferraris, Jr., Carl J. | Partner

Coates, D., 1991. Biology of fork-tailed catfishes from the Sepik River, Papua New Guinea. Environ. Biol. Fishes 31(1):55-74. (Ref. 9233)

IUCN Rote Liste Status (Ref. 130435: Version 2024-1)

Daten mangelhaft (DD) ; Date assessed: 03 December 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Traumatogenic (Ref. 58010)

Nutzung durch Menschen

Fischereien: kleinfischerei

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Trophic level (Ref. 69278): 3.0 ±0.41 se; based on food items.

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): High vulnerability (57 of 100).

Preiskategorie (Ref. 80766): Medium.

Potamosilurus coatesi (Kailola, 1990)