Classification / Names
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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); hadiatyae: Name for Renny Kurnia Hadiaty who contributed significantly to the exploration of fish diversity in the Malili Lakes area and discovered this endemic ricefish in remote Lake Masapi.
Eponymy: Dr Renny Kumia Hadiaty (1960–2019) was an Indonesian ichthyologist (see Hadiaty). (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. Tropical
Asia: Lake Masapi in central Sulawesi, Indonesia.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm SL hane/ej könsbestämd; (Ref. 85098); 4.6 cm SL (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 8 - 10; Mjukstrålar i analfenan: 19 - 22; Ryggkotor: 28 - 30. Diagnosed from all species of Adrianichthyidae in Sulawesi by the combination of the following characters: snout with a well marked concavity; a slightly upwards directed mouth; a slender but relatively wide body (body depth 18.2-25.7% SL, body width 10.9-14.5% SL); pelvic
fins with 5-6 rays inserting relatively close to the rear end of the body (prepelvic length >47.7% SL); anal fin with 19-22 rays inserting relatively close to the rear end of the body (preanal length >63% SL); dorsal fin with 8-10 rays inserted above 10-12th anal-fin ray; 28-30 vertebrae; large eyes (30-39.8% HL); scales on the lateral line 27-31, transversal scale rows ½ 10-14; absence of dark blackish, dark bluish, or steel blue body coloration or brilliant red marks in both sexes;
presence of dark brown blotches on the lateral body in adult males; and absence of these blotches in females (Ref. 85098).
Inhabits blackwater lake which is almost circular and only a few meters deep, surrounded by rain forest. The introduced predatory snakehead, Channa striata, occupies the same shallow shoreline habitats of this species and appears likely to cause threats (Ref. 85098).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Herder, F. and S. Chapuis, 2010. Oryzias hadiatyae, a new species of ricefish (Atherinomorpha: Beloniformes: Adrianichthyidae) endemic to Lake Masapi, Central Sulawesi, Indonesia. Raffles Bull. Zool. 58(2):269-280. (Ref. 85098)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.00479 (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).
Trofisk nivå (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
