分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Beloniformes (Needle fishes)
頜針魚目 (Needle fishes) >
Adrianichthyidae (Ricefishes)
異鱂科 (Ricefishes) > Oryziinae
Etymology: Oryzias: Greek, oryza = rice; because of the habitat used by this fish (Ref. 45335); eversi: Named for Hans-Georg Evers who discovered this endemic ricefi sh while travelling to explore fishes and habitats in Sulawesi..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 22°C - ? (Ref. 91779)
Asia: Tana Toraja in Sulawesi, Indonesia.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 91779); 3.8 cm SL (female)
簡短描述
型態特徵 | 形態測量圖
背的軟條 (總數): 10-12; 臀鰭軟條: 17 - 18; 脊椎骨: 30 - 32. Can be diagnosed from all other species belonging to Adrianichthyidae in Sulawesi by the following combination of characters: anal fin with 17-18 fin rays; dorsal fin with 10-12 rays; lateral midline with 33-36 scales; ½14 transverse scale rows at dorsal fin origin; total vertebrae 30-32; small eye size relative to head length (28.2-35.5% HL); absence of dark bluish or steel blue body coloration or brilliant red marks in both sexes; conspicuous blackish courtship coloration of males, including a blackish belly and posterior lateral body, presence of 6-9 blackish lateral bars, and presence of a narrow black line on a light brown background on dorsal surface; principal caudal fin with I,4/5,I rays; and a conspicuous pelvic brooding behavior associated with sexually dimorphic body depth and pelvic fi n length (Ref. 91779).
The type locality where the species occurs is a karst pond of 30-40 m length, up to 10 m width and approximately up to 4 m depth, with calm and crystal clear water, with single in- and outflow and surrounded by rain forest. The pond is used by local people as a natural swimming pool (Ref. 91779). A pelvic-brooder, in which females carry an egg cluster until hatching (Ref. 126777).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
A pelvic-brooder which carries clusters of eggs in a belly concavity until they hatch (Ref. 91779).
Herder, F., R.K. Hadiaty and A.W. Nolte, 2012. Pelvic-fin brooding in a new species of riverine ricefish (Atherinomorpha: Beloniformes: Adrianichthyidae) from Tana Toraja, Central Sulawesi, Indonesia. The Raffles Bulletin of Zoology 60(2):467-476. (Ref. 91779)
IUCN 瀕危狀態 (Ref. 130435)
近危 (NT) (B1a+2a); Date assessed: 25 October 2018
人類使用
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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 (0.00190 - 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).
營養階層 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
