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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); 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.
Eponymy: H R Bambang Soeroto (1929 –2021) was a systematic ichthyologist who was also professor (1986) of geomorphology in the Department of Biology at Sam Ratulangi University, Indonesia. [...] (Ref. 128868), visit book page.
পরিবেশ: পরিবেশ / জলবায়ু অঞ্চল / গভীরতার পরিসীমা / বিতরণ পরিসীমা
বাস্তুসংস্থান
; স্বাদু পানি সমুদতলে ভাসমান বেনথোপেলাজিক. Tropical
Asia: Lake Tiu in central Sulawesi, Indonesia.
আকৃতি / ওজন / বয়স
পরিপক্কতা : Lm ? range ? - ? cm
Max length : 2.9 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 103734); 3.2 cm SL (female)
সংক্ষিপ্ত বিবরণ
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 8 - 9; পায়ূর নরম পাখনা্তুন্ড: 18 - 21; কশেরুকা : 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).
Body shape (shape guide): elongated.
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).
জীবনচক্র এবং প্রজনন আচরণ
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Based on aquarium observations, females carry eggs on a genital pore for several hours and deposit them onto submerged yarn (Ref. 103734).
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)
আইইউসিএন রেড লিস্টের অবস্থা (Ref. 130435: Version 2025-2 (Global))
মানুষের জন্য হুমকি
Harmless
মানুষের ব্যবহার
মৎস্য: আকর্ষণবিহীণ
হাতিয়ার
বিশেষ প্রতিবেদন
XML ডাউনলোড করুন
ইন্টারনেট সুত্র
মডেলের উপর ভিত্তি করে অনুমান
ফাইলোজেনেটিক বৈচিত্র্য সূচক (সূত্র
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).
ট্রফিক পর্যায়ে (সূত্র
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
মাছ ধরার ঝুঁকিপূর্ণতা (Ref.
59153): Low vulnerability (10 of 100).
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