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Teleostei (teleosts) > Siluriformes (Catfishes) > Clariidae (Airbreathing catfishes)
Etymology: Clarias: Greek, chlaros = lively, in reference to the ability of the fish to live for a long time out of water.

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

Freshwater; demersal. Tropical

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

Asia: endemic to Pulau Tioman, Malaysia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 30.5 cm SL male/unsexed; (Ref. 39637)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 67 - 75; Anal soft rays: 61 - 70; Vertebrae: 67 - 71. Possess the following unique combination of character states: body slender, body depth at anus 9.0-11.4% in SL; distance of occipital process to dorsal fin origin 9.9-11.8% in SL; dorsal and anal fins separate from caudal fin.

Facultative air-breathing (Ref. 126274); Found in freshwater sections of torrent streams, in clear, cool, fast flowing water over a substrate of sand, rocks and large granite boulders. Largely carnivorous, subsisting on small fish, crustaceans and insects. Seems to be nocturnal, emerging into the open at night. Also Ref. 84801.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Ng, H.H., 2001. Clarias microstomus, a new species of clariid catfish from Eastern Borneo (Teleostei: Siluriformes). Zool. Stud. 40(2):158-162. (Ref. 39637)

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

Critically Endangered (CR) (B1ab(ii,iii,v)); Date assessed: 17 January 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
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Length-weight rel.
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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=0.00794 (0.00357 - 0.01766), b=2.96 (2.78 - 3.14), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (27 of 100).

Clarias batu Lim & Ng, 1999