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Teleostei (teleosts) > 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.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; benthopelagic; depth range 0 - 1 m (Ref. 119419). Temperate

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Asia: China.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.6 cm SL male/unsexed; (Ref. 119419)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 7 - 9; Anal spines: 1; Anal soft rays: 6 - 8; Vertebrae: 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).

Occurs usually in shallow (10-50 cm deep) low-gradient streams (Ref. 119419).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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 Red List Status (Ref. 130435: Version 2024-2)

Endangered (EN) (A2c); Date assessed: 27 November 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00724 (0.00338 - 0.01553), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Rhinogobius immaculatus Li, Li & Chen, 2018