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

Teleostei (teleosts) > 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 Ecology

Freshwater; benthopelagic. Tropical; 3°S - 6°S

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

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

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 36 - ? cm
Max length : 75.0 cm SL male/unsexed; (Ref. 2847); common length : 45.0 cm SL male/unsexed; (Ref. 9233); common length :45 cm SL (female); max. published weight: 5.0 kg (Ref. 9233)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal spines: 0; Anal soft rays: 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Mouthbrooder.

Main reference Upload your references | References | Coordinator : Ferraris, Jr., Carl J. | Collaborators

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 Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 03 December 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Traumatogenic (Ref. 58010)

Human uses

Fisheries: subsistence fisheries

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance

Life cycle
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Maturity
Maturity/Gills rel.
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Eggs
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Anatomy
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Genetics
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Internet sources

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.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).

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

Price category (Ref. 80766): Medium.

Potamosilurus coatesi (Kailola, 1990)