分類 / 名前
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Cypriniformes (Carps) >
Xenocyprididae (East Asian minnows)
Etymology: Opsariichthys: Greek, opsarion, -ou = a little portion fish + Greek, ichthys = fish (Ref. 45335); rubriventris: Name 'rubriventris' from Latin words 'ruber' and 'venter', meaning 'red' and 'belly', in reference to the red belly of the mature males.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性. Subtropical
Asia: China.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 8.2 cm SL オス/雌雄の選別がない; (Ref. 137452)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 7; 臀鰭: 9 - 11. This species is distinguished by the following set of characters: absence of maxillary barbels; absence of anterior notch at the tip of the upper lip; lateral line scales 39-43; predorsal scales 13-14; narrow body width; lower jaw protrudes slightly beyond the front of the snout; 2 rows of pearl organs of the cheek, and the pearl organs are cone?shaped; the pectoral fins of adult males do not extend to the origin of the pelvic fins; adult males have significant nuptial coloration; the lower jaw and ventral side are orange?red; the envelope of the first six rays of the anal fin of adult males, females, and juveniles is orange red, and the remaining rays gradually become colorless (Ref. 137452).
Body shape (shape guide): fusiform / normal; Cross section: oval.
This species is found in streams at elevations of 200-220 meters, characterized by clear, moderate flowing water, with temperatures ranging from of 22-23°C and a substrate composed of small to medium‑sized granite, boulders, sand or gravel (Ref. 137452).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Chen, J.-B., Y.-T. Li, J.-J. Zhou, C. Li, G.-X. Weng, H.-D. Lin and J.-J. Wang, 2024. A new species of cyprinid genus Opsariichthys (Teleostei: Cyprinidae) from the Pearl River, Southern China. Diversity 16(10):596. (Ref. 137452)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 興味がない
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00402 - 0.01800), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (参照
120179): 高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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