Oryzias soerotoi

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Oryzias soerotoi Mokodongan, Tanaka & Yamahira, 2014

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drawing shows typical species in Adrianichthyidae.

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Beloniformes (Needle fishes) > Adrianichthyidae (Ricefishes) > Oryziinae
Etymology: Oryzias: Greek, oryza = rice; because of the habitat used by this fish (Ref. 45335);  soerotoi: Named for Bambang Soeroto, a systematic ichthyologist at Sam Ratulangi University, Indonesia, in recognition of his enduring contributions to the exploration of fish diversity in Sulawesi..

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 底生の漂泳性. Tropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Asia: Lake Tiu in central Sulawesi, Indonesia.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 2.9 cm SL オス/雌雄の選別がない; (Ref. 103734); 3.2 cm SL (female)

簡単な記述 形態学 | 形態計測学

背鰭 (合計): 8-9; 臀鰭: 18 - 21; 脊つい: 29 - 31. Oryzias soerotoi is distinguished from all congeners from Sulawesi by its brilliant orange coloration in the dorsal and ventral margins of the caudal fins of adult males. It differs by fewer scales along lateral midline (30-32) from O. sarasinorum (70-75), O. bonneorum (36-39), O. eversi (33-36), O. orthognathus (45-57), O. nigrimas (34-37), and O. matanensis (41-47). Other character useful to identify O. soerotoi is by having deeper body depth (21.6-24.8 vs. 13-15 in O. sarasinorum; and 17-20 in O. bonneorum). In addition, O. soerotoi has narrower body than O. matanensis (26.0-31.0) and O. profundicola (30.4-35.2); fewer dorsal-fin rays (8-9) than O. sarasinorum (11-12), O. bonneorum (12-13), O. eversi (10-12), and O. profundicola (10-14); fewer vertebrae (29-31) than O. sarasinorum (34), O. orthognathus (33), and O. nigrimas (32-33). It can be diagnosed from O. matanensis, O. marmoratus, O. profundicola, and O. hadiatyae, by the absence of dark brown blotches or bars on the lateral body in adult males. It can be further distinguished by its shorter anal-fin base (23.7-29.7) from O. marmoratus (31.4-36.9) and O. profundicola (37.4-41.4). It is distinct from O. hadiatyae by its short head (21.9-24.9 versus 27.2-37.1) and no pronounced concavity on the snout; from O. celebensis by the absence of distinct black stripes from the posterior midbody onto the caudal fin and of diffuse dark bars extended from dorsal and ventral to the midline; further from O. celebensis by having somewhat fewer pectoral-fin rays (9-10 vs. 10-11); from O. woworae, O. wolasi, and O. asinua by the absence of steel blue body coloration and of brilliant red or orangish coloration in the dorsal and ventral margins of the caudal peduncle; and larger size than O. woworae, O. wolasi, and O. asinua (up to 3.21 cm SL vs. 2.86 cm SL); from O. nebulosus by having a truncate caudal fin (vs. emarginate) and somewhat fewer lateral scales (30-32 vs. 32-36). It differs from O. mekongensis and O. pectoralis, Oryzias outside of Sulawesi having orange or reddish margins on the caudal fins of males by the possession of 8-9 dorsal-fin rays (vs. 5-7 in O. mekongensis and 6-7 in O. pectoralis) and attaining larger size (up to 1.67 cm SL in O. mekongensis and 2.23 cm SL in O. pectoralis) (Ref. 103734).

生物学     用語集 (例 epibenthic)

The type locality, Lake Tiu in central Sulawesi, is surrounded by trees and mountains and is characterized by a muddy substrate, and calm and transparent water, but darkly stained by decaying vegetation. Juveniles and young fish occurs in shallow habitats with dense vegetation (Ref. 103734).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

Based on aquarium observations, females carry eggs on a genital pore for several hours and deposit them onto submerged yarn (Ref. 103734).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Seegers, Lothar | 協力者

Mokodongan, D.F., R. Tanaka and K. Yamahira, 2014. A new ricefish of the genus Oryzias (Beloniformes, Adrianichthyidae) from Lake Tiu, Central Sulawesi, Indonesia. Copeia 2014(3):561-567. (Ref. 103734)

IUCNのレッドリストの状況は (Ref. 130435)

  絶滅寸前の危機的状況 (CR) (B1ab(iii)+2ab(iii)); Date assessed: 16 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

FAO - Publication: search | FishSource |

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シガテラ(食中毒の名前)
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Otoliths

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インターネットの情報源

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 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).
栄養段階 (Ref. 69278):  3.3   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).