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No image available for this species; drawing shows typical species in Gobiidae.
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Rhinogobius:Greek, rhinos = nose + Latin, gobius = gudgeon (Ref. 45335); immaculatus:Name derived from Latin 'in' for without and 'maculatus' for spotted, referring to the absence of a black blotch on the anterior part of the first dorsal fin in adult males; an adjective.
背面の脊椎 (合計) : 6 - 7; 背鰭 (合計) : 7 - 9; 肛門の骨: 1; 臀鰭: 6 - 8; 脊つい: 27. This species is most similar to Rhinogobius wuyanlingensis in number of vertebrae (27) and preopercular canal pores (2 or 0 vs. 2); differs by having fewer pectoral-fin rays 14-15 (vs. 17-18 in R. wuyanlingensis), fewer anal-fin rays I, 6-7 (vs. I, 8), fewer transverse scales 7-9, modally 8 (vs. 9-10); in males, anterior part of first dorsal fin without a black blotch (vs. present) and with branchiostegal membrane mostly reddish-orange, with irregular blotches posteriorly (vs. with red stripes) (Ref. 119419). Cross section: oval.
Occurs usually in shallow (10-50 cm deep) low-gradient streams (Ref. 119419).
Li, F., S. Li and J.-K. Chen, 2018. Rhinogobius immaculatus, a new species of freshwater goby (Teleostei: Gobiidae) from the Qiantang River, China. Zool. Res. 39(6):396-405. (Ref. 119419)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
系統多様性指数 (参照 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00356 - 0.01856), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-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). 🛈