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Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Glyptosterninae
Etymology: Pseudecheneis: Greek, pseudes = false + Greek, echein = to hold + Greek, nays = ship; remora, suckling fish; 1774 (Ref. 45335); gracilis: From the Latin adjective gracil (long and slender), in reference to the head smallish making body elongate and tenuous..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Tropical
Asia: Longchuanjiang of the Irrawaddy River drainage in Yunnan, China.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 18.8 cm SL macho/indeterminado; (Ref. 74729)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Raios dorsais (total) : 8; Raios anais : 9 - 10; Vértebras: 38. Can be differentiated from Pseudecheneis sulcata in possessing a longer pelvic fin, reaching base of first anal fin ray (vs. not reaching), from Pseudecheneis crassicauda in having longer pectoral fin, reaching origin of pelvic fin (vs. not reaching); from Pseudecheneis serracula in having a shorter adipose fin base (length of adipose fin base 125-166.7% in length of anal fin base vs. larger than 200%); and from Pseudecheneis sympelvica in having separate pelvic fins (vs. fused); from other congeners except Pseudecheneis immaculatus in having a long caudal peduncle (27.5-35.8% SL vs. 20-4-28.3); further from other congeners except Pseudecheneis stenura in having deeper forked of caudal fin, the shortest ray of caudal fin circa 50% of longest ray (vs. 75%). Differs from Pseudecheneis immaculatus in having shorter pectoral fin (27.1-30.6% SL vs. 29.4-38.3), and having yellow spots and patches on the body (vs. lacking); from Pseudecheneis stenura in having a saddle patch at dorsal fin origin (vs. two ovoid, isolated yellow patches on lateral of dorsal fin origin) and further in having shorter head length (head length 14.9-18.6% SL vs. 20.1-23.7, postorbital head length 4.5-5.9% head length vs. 8.5-11.4, body depth 73.9-112.2% head length vs. 67.1-88.5) (Ref. 74729).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Zhou, W., X. Li and Y. Yang, 2008. A review of the catfish genus Pseudecheneis (Siluriformes: Sisoridae) from China, with the description of four new species from Yunnan. Raffles Bull. Zool. 56(1):107-124. (Ref. 74729)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00260 - 0.01333), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).
