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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); polylepis: Name from Greek words 'polus' and 'lepis', meaning 'many' and 'scale', referring to the species' small and plentiful scales.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico; distribuzione batimetrica ? - 752 m (Ref. 133026). Tropical
Westerm Central Pacific: Indonesia.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 5.3 cm SL maschio/sesso non determinato; (Ref. 133026)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 11 - 13; Raggi anali molli: 19 - 23. This species is distinguished from its congeners by the following set of characters: high number of scales in the lateral series 79-93; substantially smaller adult standard length 52 mm and shorter snout 6.8 with superior and small mouth; dorsal fin rays 11-13; anal fin rays 19-23; pectoral fin rays 11-14; fewer principal caudal-fin rays i,4/5,i; shorter head 23.1-26.4 and larger eyes relative to head length 32.6-40.7; possess deeper bodies 15.2-21.4; truncate or round instead of lunate caudal-fin edge; greater predorsal length 67.2-70.6; presence of a broad reflective silver lateral band extending from the pectoral fin to the end of the caudal peduncle; presence of a series of dark blotches along the lateral line in males (Ref. 133026).
Body shape (shape guide): elongated; Cross section: oval.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Möhring, J., D.F. Mokodongan, A. Gani, D. Wowor, Annawaty and A., Herder, F. Böhne, 2025. A new and unique species of Ricefish (Teleostei: Adrianichthyidae: Oryzias) from the Lariang River Basin, Sulawesi, Indonesia, and the first known sympatric Ricefish species pair from Sulawesi Rivers. Ichthyology & Herpetology 113(1):61-74. (Ref. 133026)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
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Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00190 - 0.01207), b=3.13 (2.91 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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