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Beloniformes (Needle fishes) >
Adrianichthyidae (Ricefishes) > Oryziinae
Etymology: Oryzias: Greek, oryza = rice; because of the habitat used by this fish (Ref. 45335); nebulosus: The specific name, nebulosus, misty or foggy, connotes a species previously unrecognized among the melanistic Oryzias in Lake Poso.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical; 1°S - 3°S, 120°W - 121°W (Ref. 54508)
Asia: Endemic to Lake Poso and its tributary stream, Sulawesi, Indonesia.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 3.3 cm SL macho/indeterminado; (Ref. 54508)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Raios dorsais (total) : 9 - 11; Raios anais : 21 - 22; Vértebras: 30 - 32. Having a unique sexual dichromatism: adult males dark gray to black in color, while females lighter grayish-yellow to brown. Some adult males possess external conical teeth on the jaws. Lateral process of pelvic bone is in line with the third or fourth pleural rib; precaudal vertebrae 11-13, modally 12; and dorsal fin relatively anterior (origin above 12-14th anal-fin ray); straight, narrow and slender ossified and cartilaginous portions of the gill arches. Dorsal body profile arches gently from head to dorsal-fin origin (Ref. 54508).
Collected in the morning in clear water over a bottom of sand, pebbles and fallen branches and during night time from a boat traveling along the lake shore, including the mouth of the tributary stream (Ref. 54508). Infested with parasitic copepods, Lernaea sp. (Ref. 54508).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Parenti, L.R. and B. Soeroto, 2004. Adrianichthys roseni and Oryzias nebulosus, two new ricefishes (Atherinomorpha: Beloniformes: Adrianichthyidae) from Lake Poso, Sulawesi, Indonesia. Ichthyol. Res. 51:10-19. (Ref. 54508)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2024-1)
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=0.00479 (0.00189 - 0.01213), b=3.13 (2.91 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.3 ±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 (Assuming fec < 100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).