Rhinogobius similis
Gill, 1859

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Classification / Names

Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Rhinogobius: Greek, rhinos = nose + Latin, gobius = gudgeon (Ref. 45335).
More on author: Gill.

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

Freshwater; benthopelagic; temperate.

Distribution

Asia: Japan, Korea, Yalu River, Tumen-ula River and Maikhe River in the basin of Peter the Great Bay. Amur River basin (Ref. 13397) and Tedzhen River basin (Ref. 39702). At least one country reports adverse ecological impact after introduction.

Size / Weight / Age

Max length: 10.0 cm TL male/unsexed (Ref. 2058); max length: 6.6 cm SL (female).

Short description

Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 8; Vertebrae: 26. This species is distinguished from its congeners by the following combination of characters: D1 I,8; pectoral-fin rays 18-19; predorsal scales 8-12; longitudinal scales 29-31; vertebrae 11+15 = 26; predorsal squamation composed of large ctenoid scales, reaching anteriorly to near posterior margin of the eye; short transverse rows of sensory papillae 5-6 below eye; several short transverse rows of sensory papillae (a part of row c) between 2 longitudinal rows of sensory papillae on cheek; head with a dark brownish gray reticulation or reddish oblique lines except for its ventral surface; upper end of pectoral-fin base with a black spot, as large as pupil; midlateral body with a longitudinal series of alternating large and small black blotches; 2-4 irregular longitudinal rows of small skyblue spots on midlateral body when alive (Ref. 104791).

Main reference

Suzuki, T., K. Shibukawa, H. Senou and I.-S. Chen 2015 Redescription of Rhinogobius similis Gill 1859 (Gobiidae: Gobionellinae), the type species of the genus Rhinogobius Gill 1859, with designation of the neotype. Ichthyol. Res. 62(3):1-14. (Ref. 104791)

IUCN Red List Status (Ref. 125652)

  Not Evaluated

CITES (Ref. 131153)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Potential pest (Ref. 13364)

More information
Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD50 = 0.5 [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): 3.3 ±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).

Nutrients (Ref. 124155): Calcium = 0 [0, 0] mg/100g; Iron = 0 [0, 0] mg/100g; Protein = 0 [0, 0] %; Omega3 = 0 [0, 0] g/100g; Selenium = 0 [0, 0] μg/100g; VitaminA = 0 [0, 0] μg/100g; Zinc = 0 [0, 0] mg/100g (wet weight);