Classificação / Names
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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; nigricans: From Latin nigricans, meaning blackish, in reference to the relatively dark color of this species.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Tropical
Asia: Mahakam drainage in Borneo, Indonesia.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 30.8 cm SL macho/indeterminado; (Ref. 55460)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0; Raios dorsais moles (total) : 92 - 97; Raios anais moles: 80 - 86; Vértebras: 76 - 83. Distinguished from congeners of the Clarias nieuhofii species group in having a narrow snout (with an egg-shaped head when viewed dorsally), dark violet grey coloration with small white spots on flanks, a narrow head (11.7-12.3% SL), a relatively large distance between the tip of the occipital process and the base of the first dorsal fin ray (8.1-9.8% SL), and few large serrations on the anterior edge of the pectoral spine (Ref. 55460).
Facultative air-breathing (Ref. 126274)
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Ng, H.H., 2003. Clarias nigricans, a new species of clariid catfish (Teleostei: Siluriformes) from eastern Borneo. Raffles Bull. Zool. 51(2):393-398. (Ref. 55460)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-1)
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
Nível Trófico (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (28 of 100).